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Kenneth wrote: Eric F. Richards wrote in message . .. "phil :)" wrote: Hello... phil? . I see Bob Sherwood relatively frequently at hamfests and keep bugging him to put the R-75 specs into his high-end receiver comparison table. Eventually... (he just laughed when I tried to sell him my R-75!) Do you know that the Ten Tec RX340 and R-75 passport laboratory measurements were conducted in your friend Bob Sherwood laboratory? Here Bob RX-340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, Maybe he recalled this RX-340 test when he laughed at you in the hamfest.About his R-75 test:Oustanding rejection of spurious signals,reception of faint signals alongside powerful competing ones , ultimate selectivity and good dynamic range.If you or anyone here keep trying to put down the R-75 with subjetive statements I will react with your own resources. I've really got to tell you what blows my mind! It's the fact that you and many others who claim to 'own' an R75 keep writing it up as a 'R-75'. Do you ever get to use the radio and look at the front panel? It's an R75, at least it says so on the front. Or, is the problem that you've always got it apart trying to fix its shortcomings that you never actually get to look at the front of the radio? Wondering... Steve Holland, MI Drake R7, R8 and R8B "I swear by, not at, Drake receivers" © |
N8KDV,
Your are Right :o) It is the Icom IC-R75 [.] So I Guess I Need to go to the Black Board and Write Icom IC-R75 x 100 [.] Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 there, There. THERE! I Feel All Better Now :o) A Proud Icom IC-R75 {R-75} Owner - The Icom IC-R75: Its "MY" Radio ! [ Honestly, Forget the Facts and Tecnical Data - Its How I FEEL ! ] jftfoi ~ RHF .. .. = = = N8KDV = = = wrote in message ... Kenneth wrote: Eric F. Richards wrote in message . .. "phil :)" wrote: Hello... phil? . I see Bob Sherwood relatively frequently at hamfests and keep bugging him to put the R-75 specs into his high-end receiver comparison table. Eventually... (he just laughed when I tried to sell him my R-75!) Do you know that the Ten Tec RX340 and R-75 passport laboratory measurements were conducted in your friend Bob Sherwood laboratory? Here Bob RX-340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, Maybe he recalled this RX-340 test when he laughed at you in the hamfest.About his R-75 test:Oustanding rejection of spurious signals,reception of faint signals alongside powerful competing ones , ultimate selectivity and good dynamic range.If you or anyone here keep trying to put down the R-75 with subjetive statements I will react with your own resources. I've really got to tell you what blows my mind! It's the fact that you and many others who claim to 'own' an R75 keep writing it up as a 'R-75'. Do you ever get to use the radio and look at the front panel? It's an R75, at least it says so on the front. Or, is the problem that you've always got it apart trying to fix its shortcomings that you never actually get to look at the front of the radio? Wondering... Steve Holland, MI Drake R7, R8 and R8B "I swear by, not at, Drake receivers" © |
In article ,
N8KDV wrote: Kenneth wrote: Eric F. Richards wrote in message . .. "phil :)" wrote: Hello... phil? . I see Bob Sherwood relatively frequently at hamfests and keep bugging him to put the R-75 specs into his high-end receiver comparison table. Eventually... (he just laughed when I tried to sell him my R-75!) Do you know that the Ten Tec RX340 and R-75 passport laboratory measurements were conducted in your friend Bob Sherwood laboratory? Here Bob RX-340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, Maybe he recalled this RX-340 test when he laughed at you in the hamfest.About his R-75 test:Oustanding rejection of spurious signals,reception of faint signals alongside powerful competing ones , ultimate selectivity and good dynamic range.If you or anyone here keep trying to put down the R-75 with subjetive statements I will react with your own resources. I've really got to tell you what blows my mind! It's the fact that you and many others who claim to 'own' an R75 keep writing it up as a 'R-75'. Do you ever get to use the radio and look at the front panel? It's an R75, at least it says so on the front. Or, is the problem that you've always got it apart trying to fix its shortcomings that you never actually get to look at the front of the radio? Wondering... Just another IC-R75 " HACK " I mean R-75 modification. -- Telamon Ventura, California |
hi HFguy:
i made a couple good friends from RRS and spent some of 2003 reading RF electronics, doing experiments, and designing a MW receiver... it's been fun. regards, phil :) |
howdy Linus:
I'm STILL looking for replacement surface mount LED's for that damned display! e-mail me, i'll pass along my idea and if it pans out we can share it with the R75 Yahoo Group. regards, phil |
hi Telamon:
my purpose was not to belittle. you're correct, specs can be deceiving. does someone sell a $600 K2 for a $3300 Orion if under their conditions it yields only 0.2% more IDs? possibly. you would be successful with any receiver because you understand RF environment, antennas, propagation patterns, etc. regards, phil :) |
RHF wrote:
N8KDV, Your are Right :o) It is the Icom IC-R75 [.] So I Guess I Need to go to the Black Board and Write Icom IC-R75 x 100 [.] Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 there, There. THERE! I Feel All Better Now :o) A Proud Icom IC-R75 {R-75} Owner - The Icom IC-R75: Its "MY" Radio ! [ Honestly, Forget the Facts and Tecnical Data - Its How I FEEL ! ] jftfoi ~ RHF I bet you typed all those "Icom IC-R75" lines individually. :-) -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
Icom has quality control problems. Thay work great, when thay work. Bill, N5NOB I own a second hand one, for over 14 months now. It never let me down, i think it´s a fine reciever with great performance. Of course it´s not comparable with some $4000 + professional receivers, but for what i´ve spend on it i´ve got a lot of fun. I´m not into electronics, and i can´t tell the difference between a capacitor and a resistor but i´ve modded mine with the AGC/SAM mods just for fun. Before the mods it was a fine receiver, comparable with my Lowe HF-225, and now it´s even better. Bjern , SWL6001NL Holland Icom IC-R75 Icom IC-R70 Lowe HF-225 Sangean ATS909 Icom IC-R5 Aimor TR-105 UBC 780XLT |
Eric F. Richards wrote in message
Do you know that the Ten Tec RX340 and R-75 passport laboratory measurements were conducted in your friend Bob Sherwood laboratory? The sync selectable sideband lose look relatively easily, Early firmware fix. Passport in the evaluation of revised model page:A number of issues persist:synchronous selectable sideband doesn't hold lock as well as it should and various feature are limited by mode choice.In read in the ten tec RX- 350 yahoo group that they are still waiting for some of those "firmware fixings" Passport recomend an external Sherwood SE-3 [500.00], For most radios, and for those they don't it's often because the combined cost will put you into another radio's class. poor dynamic range, The 81 dB is killing me. If I mod it I can get 100 dB at 5 kHz. Check the ten tec site page for the RX340 dynamic range and blocking lab numbers static crashes sound harsher than on analog receivers. They do. It's shortwave radio -- shut up and deal. notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, Firmware fix, Kenneth. Maybe you should check what's going on before you wroted anything down. Where I can read about this latest "firmware fixes" to the syn det? Maybe he recalled this RX-340 test when he laughed at you in the hamfest.About his R-75 test:Oustanding rejection of spurious signals,reception of faint signals alongside powerful competing ones , ultimate selectivity and good dynamic range.If you or anyone here keep trying to put down the R-75 with subjetive statements I will react with your own resources. You. Are. An. Idiot. I don't did the test, you are insulting the wrong guy. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. I do believe that the front panel of an RX-240 is too complex for you to use, though, so don't bother trying to actually use the features. Yes for me any radio is a toy to play with it,a hobby,something to have fun.Insulting [or trying to insult] people because they don't like your expensive toy is a childish behavior. Do you see what happens when you you try to "put down" others receivers with sarcastic arguments and you have a glass roof? .You get upset and start insulting everyone that don't like your radio.You a suppposed respetable and honorable gentleman are only projecting your repressed desires in your insults.One more point: To insult people is the first sign of a poor argument. If you call someone a loser, or an idiot it indicates that you don't have anything intelligent to say and you are far less likely to attract support than if you concentrate on the discussion topic.People who frequently base their arguments around lines like "get a life" don't tend to be taken too seriously.Relax we are talking only about a radio. With best regards: Ken |
HF Guy,
"I bet you typed all those "Icom IC-R75" lines individually. :-)" yes, Yes. YES ! - Using My "Dueling Two Finger Typing" Style :o) - - Butt Hay ! - I Own a Icom IC-R75 - Its "MY Radio ! { aka: R-75 = The RAaa Dasha Seventee Fiva } jftfoi ~ RHF .. .. = = = HFguy = = = wrote in message ... RHF wrote: N8KDV, Your are Right :o) It is the Icom IC-R75 [.] So I Guess I Need to go to the Black Board and Write Icom IC-R75 x 100 [.] Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 Icom IC-R75 there, There. THERE! I Feel All Better Now :o) A Proud Icom IC-R75 {R-75} Owner - The Icom IC-R75: Its "MY" Radio ! [ Honestly, Forget the Facts and Tecnical Data - Its How I FEEL ! ] jftfoi ~ RHF I bet you typed all those "Icom IC-R75" lines individually. :-) Butt Hay ! - I Own a Icom IC-R75 - Its "MY Radio ! { aka: R-75 = The RAaa Dasha Seventee Fiva } Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 Icom R-75 sorry, Sorry. SORRY ! - I Just Had To Do It ! - "R-75" Forever ! . . .. |
Thanks Phil! The MCL rep stopped over today, and I got to demo the
engineering unit. He did like it. pete phil :) wrote in message ... howdy Pete! Hey Phil..............maybe we should really mod up the R75 and call it an R76! i'm more excited about your radio... very clean design! regards, phil :) |
Thanks! it has been a learning experience!
Pete starman wrote in message ... Pete KE9OA wrote: Those sync detectors have been the hardest part of this radio design! Compared to my current iterations, the Icom R75 sync detector is a gem. This gives you an idea of just how bad my sync detectors are! I'll get them running.........they are only a collection of parts! You're learning why so few receivers have been made with a good sync' detector. Keep up the good work. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
It would be cool to have RGB LEDs, with a way to change the color throughout
the spectrum. Pete phil :) wrote in message ... howdy Linus: I'm STILL looking for replacement surface mount LED's for that damned display! e-mail me, i'll pass along my idea and if it pans out we can share it with the R75 Yahoo Group. regards, phil |
hi Pete:
It would be cool to have RGB LEDs, with a way to change the color throughout the spectrum. that would be cool. like those modern Christmas trees. regards, phil :) |
You. Are. An. Idiot. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. your R75 overloaded; however, you conveniently forgot the details. you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. you botched using your spectrum analyzer, bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". only an experienced DXer, Steve, and others got you to shut your pie hole. we told you the antenna was resonant on MW and to use a LW loop, but why admit a mistake when you can blame an inanimate object. denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. 73s, phil :) |
I haven't heard from you, so I will assume that you did receive the info.
Pete starman wrote in message ... Pete KE9OA wrote: Those sync detectors have been the hardest part of this radio design! Compared to my current iterations, the Icom R75 sync detector is a gem. This gives you an idea of just how bad my sync detectors are! I'll get them running.........they are only a collection of parts! You're learning why so few receivers have been made with a good sync' detector. Keep up the good work. -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
Pete KE9OA wrote:
I haven't heard from you, so I will assume that you did receive the info. Pete I got them Pete. Thanks a lot. I haven't studied the schematic too much but I was wondering what changes (if any) would be needed to use the sync' detector with a 50-Khz I.F.? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
like eric and les said ITS JUST A RADIO i have 4 or 5 and none of then are
the "best" but each one is better at certain things than the others!!!! just my 2 cents chuck p.s. why all the bashing and name calling?????? just turn on your radio and listen to it instead of fighting!! "Llgpt" wrote in message ... Subject: Icom R-75 question From: Eric F. Richards Date: 1/11/2004 10:00 AM Central Standard Time Message-id: "phil :)" wrote: You. Are. An. Idiot. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wroted [sic] are taken way out of context. If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. your R75 overloaded; however, you conveniently forgot the details. I think my lack of forgetting is well documented. Do you want me to quote them, again? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. No, it was "abandoned" because of a government project that ended. Such things happen all the time in government facilities -- after a project is done, the equipment is abandoned in place. you botched using your spectrum analyzer, Judgement call. I didn't succeed in what I wanted to do, but that's a long way from "botching" it. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. only an experienced DXer, Steve, and others got you to shut your pie hole. I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. we told you the antenna was resonant on MW and to use a LW loop, but why admit a mistake when you can blame an inanimate object. That's an interesting judgement. Which frequency is that wire resonant on? All of them? denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. I call Ken an idiot because he can't spew out a coherent english sentence, AND he's bashing a radio he never used. Got news for you, doc, I've used the R75. I got a crack at the R8B. I've used the FRG-100, and I've used the RX-340. Nothing beats actually USING the radios. Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. Actually I went down there and talked to the engineers about their design. They were more than willing to go over it with me. Have you spoken to any engineers at ICOM about the myriad mods you had to do to get the radio up to spec? 73s, Ha! "F*ck you, best regards." Nice try. phil :) Don't be such an asshole. Have you gotten your 6790? It might be an educational experience. Look. Try not to worship a radio. It's a RADIO, nothing more. I have said before and I'll say again, that the R75 is a fine receiver, within its limits. But ICOM spent too much time adding features and not enough time with the basics. Drake spent much more time with the basics, THEN added the features -- proof of that can be seen by the evolution of the sync detector and the user interface. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, and one of the basics it got right was that it has a brick wall for a front end. It also has excellent audio, without modding the hell out of it. I like my RX-340 despite its minor flaws, because it does such a damned good job. I have 5 radios in my shack now, and each has a purpose. Depending on what I want to do, I choose a radio and use it. I *worship* none of them. Perspective. It's not just for breakfast any more. -- Eric F. Richards, "This book reads like a headache on paper." http://www.cnn.com/2001/CAREER/readi...one/index.html Excellent, very well said Eric! I have anywhere from 5 to 9 receivers at any given time, I too believe that certain receivers work better than others in any given situation. Maybe Phil will stay over in Yahoo with Kenneth (the spelling bee champ) and continue to modify the R75. Les |
"phil :)" wrote:
You. Are. An. Idiot. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wroted [sic] are taken way out of context. If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. your R75 overloaded; however, you conveniently forgot the details. I think my lack of forgetting is well documented. Do you want me to quote them, again? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. No, it was "abandoned" because of a government project that ended. Such things happen all the time in government facilities -- after a project is done, the equipment is abandoned in place. you botched using your spectrum analyzer, Judgement call. I didn't succeed in what I wanted to do, but that's a long way from "botching" it. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. only an experienced DXer, Steve, and others got you to shut your pie hole. I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. we told you the antenna was resonant on MW and to use a LW loop, but why admit a mistake when you can blame an inanimate object. That's an interesting judgement. Which frequency is that wire resonant on? All of them? denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. I call Ken an idiot because he can't spew out a coherent english sentence, AND he's bashing a radio he never used. Got news for you, doc, I've used the R75. I got a crack at the R8B. I've used the FRG-100, and I've used the RX-340. Nothing beats actually USING the radios. Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. Actually I went down there and talked to the engineers about their design. They were more than willing to go over it with me. Have you spoken to any engineers at ICOM about the myriad mods you had to do to get the radio up to spec? 73s, Ha! "F*ck you, best regards." Nice try. phil :) Don't be such an asshole. Have you gotten your 6790? It might be an educational experience. Look. Try not to worship a radio. It's a RADIO, nothing more. I have said before and I'll say again, that the R75 is a fine receiver, within its limits. But ICOM spent too much time adding features and not enough time with the basics. Drake spent much more time with the basics, THEN added the features -- proof of that can be seen by the evolution of the sync detector and the user interface. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, and one of the basics it got right was that it has a brick wall for a front end. It also has excellent audio, without modding the hell out of it. I like my RX-340 despite its minor flaws, because it does such a damned good job. I have 5 radios in my shack now, and each has a purpose. Depending on what I want to do, I choose a radio and use it. I *worship* none of them. Perspective. It's not just for breakfast any more. -- Eric F. Richards, "This book reads like a headache on paper." http://www.cnn.com/2001/CAREER/readi...one/index.html |
Subject: Icom R-75 question
From: Eric F. Richards Date: 1/11/2004 10:00 AM Central Standard Time Message-id: "phil :)" wrote: You. Are. An. Idiot. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wroted [sic] are taken way out of context. If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. your R75 overloaded; however, you conveniently forgot the details. I think my lack of forgetting is well documented. Do you want me to quote them, again? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. No, it was "abandoned" because of a government project that ended. Such things happen all the time in government facilities -- after a project is done, the equipment is abandoned in place. you botched using your spectrum analyzer, Judgement call. I didn't succeed in what I wanted to do, but that's a long way from "botching" it. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. only an experienced DXer, Steve, and others got you to shut your pie hole. I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. we told you the antenna was resonant on MW and to use a LW loop, but why admit a mistake when you can blame an inanimate object. That's an interesting judgement. Which frequency is that wire resonant on? All of them? denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. I call Ken an idiot because he can't spew out a coherent english sentence, AND he's bashing a radio he never used. Got news for you, doc, I've used the R75. I got a crack at the R8B. I've used the FRG-100, and I've used the RX-340. Nothing beats actually USING the radios. Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. Actually I went down there and talked to the engineers about their design. They were more than willing to go over it with me. Have you spoken to any engineers at ICOM about the myriad mods you had to do to get the radio up to spec? 73s, Ha! "F*ck you, best regards." Nice try. phil :) Don't be such an asshole. Have you gotten your 6790? It might be an educational experience. Look. Try not to worship a radio. It's a RADIO, nothing more. I have said before and I'll say again, that the R75 is a fine receiver, within its limits. But ICOM spent too much time adding features and not enough time with the basics. Drake spent much more time with the basics, THEN added the features -- proof of that can be seen by the evolution of the sync detector and the user interface. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, and one of the basics it got right was that it has a brick wall for a front end. It also has excellent audio, without modding the hell out of it. I like my RX-340 despite its minor flaws, because it does such a damned good job. I have 5 radios in my shack now, and each has a purpose. Depending on what I want to do, I choose a radio and use it. I *worship* none of them. Perspective. It's not just for breakfast any more. -- Eric F. Richards, "This book reads like a headache on paper." http://www.cnn.com/2001/CAREER/readi...one/index.html Excellent, very well said Eric! I have anywhere from 5 to 9 receivers at any given time, I too believe that certain receivers work better than others in any given situation. Maybe Phil will stay over in Yahoo with Kenneth (the spelling bee champ) and continue to modify the R75. Les |
Llgpt wrote: Subject: Icom R-75 question From: Eric F. Richards Date: 1/11/2004 10:00 AM Central Standard Time Message-id: "phil :)" wrote: You. Are. An. Idiot. You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wroted [sic] are taken way out of context. If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. your R75 overloaded; however, you conveniently forgot the details. I think my lack of forgetting is well documented. Do you want me to quote them, again? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. No, it was "abandoned" because of a government project that ended. Such things happen all the time in government facilities -- after a project is done, the equipment is abandoned in place. you botched using your spectrum analyzer, Judgement call. I didn't succeed in what I wanted to do, but that's a long way from "botching" it. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. only an experienced DXer, Steve, and others got you to shut your pie hole. I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. we told you the antenna was resonant on MW and to use a LW loop, but why admit a mistake when you can blame an inanimate object. That's an interesting judgement. Which frequency is that wire resonant on? All of them? denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. I call Ken an idiot because he can't spew out a coherent english sentence, AND he's bashing a radio he never used. Got news for you, doc, I've used the R75. I got a crack at the R8B. I've used the FRG-100, and I've used the RX-340. Nothing beats actually USING the radios. Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. Actually I went down there and talked to the engineers about their design. They were more than willing to go over it with me. Have you spoken to any engineers at ICOM about the myriad mods you had to do to get the radio up to spec? 73s, Ha! "F*ck you, best regards." Nice try. phil :) Don't be such an asshole. Have you gotten your 6790? It might be an educational experience. Look. Try not to worship a radio. It's a RADIO, nothing more. I have said before and I'll say again, that the R75 is a fine receiver, within its limits. But ICOM spent too much time adding features and not enough time with the basics. Drake spent much more time with the basics, THEN added the features -- proof of that can be seen by the evolution of the sync detector and the user interface. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, and one of the basics it got right was that it has a brick wall for a front end. It also has excellent audio, without modding the hell out of it. I like my RX-340 despite its minor flaws, because it does such a damned good job. I have 5 radios in my shack now, and each has a purpose. Depending on what I want to do, I choose a radio and use it. I *worship* none of them. Perspective. It's not just for breakfast any more. -- Eric F. Richards, "This book reads like a headache on paper." http://www.cnn.com/2001/CAREER/readi...one/index.html Excellent, very well said Eric! I have anywhere from 5 to 9 receivers at any given time, I too believe that certain receivers work better than others in any given situation. Maybe Phil will stay over in Yahoo with Kenneth (the spelling bee champ) and continue to modify the R75. Les And I'll stay here... even though I've been plonked! Steve Holland, MI Drake R7, R8 and R8B |
hi Eric:
the 1000' antenna was untuned, very capable of obsorbing MW energy, directional, and aimed at a powerful MW station. the R8B/R75 both overloaded: too much first mixer energy. the R8500 did better due to its LW BPF (100-500 kHz) and relays (vs PIN diodes). however, for NDBs a $50 homebrew LW loop, being tuned and directional [rotateable], reduces IP3 demands... any tabletop will suffice. AFA ICOM, i care little. their errors were our gain: users get a $1050 radio for $450 and Kiwa fixes it for $80. if it were perfect i would not have created three mods and done five. i have 5 MW radios and often use a portable. my limiting factors are external MW band noise [~10 dBuV at 1 MHz] and antenna related. i do look forward to Pete's MW receiver. regards, phil :) |
"phil :)" wrote:
hi Eric: the 1000' antenna was untuned, very capable of obsorbing MW energy, directional, and aimed at a powerful MW station. Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, but you misrepresented several things I had said and done in that message, and I do not take kindly to that. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. the R8B/R75 both overloaded: too much first mixer energy. But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. the R8500 did better due to its LW BPF (100-500 kHz) and relays (vs PIN diodes). Yes, but mostly I'm interested in the results of the design. Not that I'm not interested in the design, but the implementation is what made the '8500 immune to such things. however, for NDBs a $50 homebrew LW loop, being tuned and directional [rotateable], reduces IP3 demands... any tabletop will suffice. Well, if I rejoin the group that works out there and set up a loop, I'll see if I can pick up the DFW OMs as cleanly as I could with the wire. Then I'll use my homebrew phaser with a loop and the wire. Probably Pete's loop. AFA ICOM, i care little. their errors were our gain: users get a $1050 radio for $450 and Kiwa fixes it for $80. if it were perfect i would not have created three mods and done five. I still think you think you got more than you really did. Just out of curiosity, is that $1050 the original price of the R75? It was pretty high when it came out. i have 5 MW radios and often use a portable. my limiting factors are external MW band noise [~10 dBuV at 1 MHz] and antenna related. i do look forward to Pete's MW receiver. I do as well and will probably get one as soon as they're available. regards, phil :) -- Eric F. Richards "The weird part is that I can feel productive even when I'm doomed." - Dilbert |
EFR,
Not to re-enter the MIGHT DRAKE RB* -=V=- 'lowly icom ic-r75' Debate again. But, IIRC from Antennas 101. ANTENNA BASICS http://www.qsl.net/g3yrc/antenna%20basics.htm INDEX= http://www.qsl.net/g3yrc/antenna%20theory%20index.htm EVERY 'piece' of Wire is "Resonant" at some Frequency [.] LDTM (Lets Do The Math): One Wave Length to Mega Hertz Frequency Factor = 984 Claimed Antenna Length = 1000 Feet One Wave Length (Resonant) Frequency = 984 / 1000 = 0.984 MHz = 984 kHz NOTE: This would be RESONANT in the Middle of the AM/MW Band. * Half (1/2) Wavelength Frequency = 492 kHz * Quarter (1/4)Wavelength Frequency = 246 kHz * Two (2) Wavelengths Frequency = 1968 kHz * Three (3) Wavelength Frequency = 2952 kHz (o: Pick a Number... Any Number ! :o) Keeping It Simple: Frequency Wavelength Calculator Goto= http://www.csgnetwork.com/freqwavelengthcalc.html Goto= Frequency to Wavelength Look Up table [For Dummies] {Oops in Metres?) How To Convert Metres (Meters) * 3.281 = Feet * MEDIUM WAVE FREQUENCIES Goto= http://www.geocities.com/roger_sharp/lookup.html * LONG WAVE FREQUENCIES Goto= http://www.geocities.com/roger_sharp/lookuplw.html O T H E R : Frequency to Wavelength to Feet/Metre Information. Goto= http://www.zyra.org.uk/freqwav.htm Goto= http://www.radiomods.co.nz/radiomath.html (o: Not to WHIP the Subject to Death :o) * Whip Antenna Length and Frequency Calculator Goto= http://www.csgnetwork.com/antennagen...eqlencalc.html iane ~ RHF .. .. = = = Eric F. Richards = = = wrote in message . .. "phil :)" wrote: hi Eric: the 1000' antenna was untuned, very capable of obsorbing MW energy, directional, and aimed at a powerful MW station. Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, but you misrepresented several things I had said and done in that message, and I do not take kindly to that. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. the R8B/R75 both overloaded: too much first mixer energy. But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. the R8500 did better due to its LW BPF (100-500 kHz) and relays (vs PIN diodes). Yes, but mostly I'm interested in the results of the design. Not that I'm not interested in the design, but the implementation is what made the '8500 immune to such things. however, for NDBs a $50 homebrew LW loop, being tuned and directional [rotateable], reduces IP3 demands... any tabletop will suffice. Well, if I rejoin the group that works out there and set up a loop, I'll see if I can pick up the DFW OMs as cleanly as I could with the wire. Then I'll use my homebrew phaser with a loop and the wire. Probably Pete's loop. AFA ICOM, i care little. their errors were our gain: users get a $1050 radio for $450 and Kiwa fixes it for $80. if it were perfect i would not have created three mods and done five. I still think you think you got more than you really did. Just out of curiosity, is that $1050 the original price of the R75? It was pretty high when it came out. i have 5 MW radios and often use a portable. my limiting factors are external MW band noise [~10 dBuV at 1 MHz] and antenna related. i do look forward to Pete's MW receiver. I do as well and will probably get one as soon as they're available. regards, phil :) |
Eric F. Richards wrote in message
You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wrote [sic] are taken way out of context. What quotes this quotes from passport to world band radio?: The Ten Tec RX340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. Icom R75 was WRTH [World radio TV handbook]choice over the R8B the same year they tested both.Now you " don't go by Passport criteria alone" because they documented your expensive toy flaws? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. You aimed a 1000' wire at a 50kw blowtorch for LW dxing and overloaded a Drake R8b in a "gracefully stupid way" by 40db and a R75 in a no so gracefully way? An antenna dance [ballet] show? Judgement call. I didn't succeed in what I wanted to do, You are very fast at calling names in a stupid manner but keep failing and overloading Drakes R8B and Icom R-75 [receivers with very good dynamic range], read for example passport Icom 8500 dynamic range report "poor dynamic range ,surprising at this price [$1,699] point and Ten tec RX340 [$3,999] dynamic IP/3 test report:poor dynamic range IP/3. There is very good information about how not to overload a receiver using the wrong antenna arrangement in the ARRL antenna handbook. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. The R8b "overloaded by 40db GRACEFULLY"? This is funny.Why you add the word "gracefully to the R8B overloading? Maybe do you have fear to the Steve and others R8B owners reaction? instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. Yes you had a bad experience using a 1,000 antenna aimed at a 50kw blowtorch.The problem is not with the arrow[the radio] but with the "Indian" [user knowledge about ant and radios] only an experienced DXer, Steve, and others got you to shut your pie hole. Yes Steve and others are around this is the only reason to minimizing the drake R8B overloading using nice words like "a gracefully overload" I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. Do you really plonked Steve ? Yes I agree your ten tec RX-340 [$3,999] is not perfect,not my R-75 not the R8B. denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. You Eric are the only IDIOT here.Who overload the drake R8B radio by 40DB or the R-75?Who was the one that spend $10,000 in radios and not in a $20.00 ARRL ant handbook or Joe carr antenna book or [$300.00]for a Quantum pro loop ant for LW dxing? Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. Yes bring your facts no biased oppinions or Moronic childishness. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. This is hilarious, a classic. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, I like my RX-340 despite its minor flaws, because it does such a damned good job. Perspective. It's not just for breakfast any more. Yes the right perspective is that I like my radio and you like your radios,"despite the minor flaws". |
Kenneth wrote: Eric F. Richards wrote in message You go play with your R-75, all features, no basic performance play toy while the rest of us use real radios. you're pandering Eric. No I'm not. The quotes Kenneth wrote [sic] are taken way out of context. What quotes this quotes from passport to world band radio?: The Ten Tec RX340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, If you go by Passport criteria alone (which I don't, BTW, and you remember that) the T-T was a "Passport's Choice" and the '75 was not. Icom R75 was WRTH [World radio TV handbook]choice over the R8B the same year they tested both.Now you " don't go by Passport criteria alone" because they documented your expensive toy flaws? you were LW DXing using a 1000' wire that was "abandoned" because it was aimed at a 50kW MW blowtorch. You aimed a 1000' wire at a 50kw blowtorch for LW dxing and overloaded a Drake R8b in a "gracefully stupid way" by 40db and a R75 in a no so gracefully way? An antenna dance [ballet] show? Judgement call. I didn't succeed in what I wanted to do, You are very fast at calling names in a stupid manner but keep failing and overloading Drakes R8B and Icom R-75 [receivers with very good dynamic range], read for example passport Icom 8500 dynamic range report "poor dynamic range ,surprising at this price [$1,699] point and Ten tec RX340 [$3,999] dynamic IP/3 test report:poor dynamic range IP/3. There is very good information about how not to overload a receiver using the wrong antenna arrangement in the ARRL antenna handbook. bought filters, then got an owner of the well respected R8B to drive across the state; only it too overloaded by 40 dB. It did. But much more gracefully than the R75. The R8b "overloaded by 40db GRACEFULLY"? This is funny.Why you add the word "gracefully to the R8B overloading? Maybe do you have fear to the Steve and others R8B owners reaction? instead of pondering you badmouthed the R75 and R8B, claiming that both were not "real radios". I never made that claim. And I reported here EXACTLY the results I got. I "badmouthed" the R75 because of my experience with it. Yes you had a bad experience using a 1,000 antenna aimed at a 50kw blowtorch.The problem is not with the arrow[the radio] but with the "Indian" [user knowledge about ant and radios] What is the problem with the Indian? Steve = Proud decendant of the Miami Nation. only an experienced DXer, Steve, and others got you to shut your pie hole. Yes Steve and others are around this is the only reason to minimizing the drake R8B overloading using nice words like "a gracefully overload" I've plonked Steve. I respect the R8B; I even respect the R75, believe it or not. But I will not look at either radio as perfection, sorry. For that matter, I don't look at my T-T as perfection, either. Do you really plonked Steve ? Yes I agree your ten tec RX-340 [$3,999] is not perfect,not my R-75 not the R8B. I'm plonked, but I still survive. denial is not just a river in Egypt. you call Ken an idiot but he modded his radio and hand built a K9AY loop. You Eric are the only IDIOT here.Who overload the drake R8B radio by 40DB or the R-75?Who was the one that spend $10,000 in radios and not in a $20.00 ARRL ant handbook or Joe carr antenna book or [$300.00]for a Quantum pro loop ant for LW dxing? Now, if Ken wants to put the two radios in perspective, then I might respect what he has to say, but he doesn't. Yes bring your facts no biased oppinions or Moronic childishness. about the only thing you've proven to be an expert at is phoning your credit card number in to the TenTec facility. This is hilarious, a classic. I like my ICOM R8500, despite its hideous flaws, because it got the basics right, I like my RX-340 despite its minor flaws, because it does such a damned good job. Perspective. It's not just for breakfast any more. Yes the right perspective is that I like my radio and you like your radios,"despite the minor flaws". |
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Telamon wrote in message
What quotes this quotes from passport to world band radio?: The Ten Tec RX340 [$3,999]test findings:The sync selectable sideband lose look relatively easily,Passport recomend an external Sherwood SE-3 [500.00],poor dynamic range,static crashes sound harsher than on analog receivers.Spurious signal noted around 6MHZ segment,notch filter does not work in AM,Sync selectable sideband or ISB modes,Noise blanker not effective ect, ect, ect, You play fast and loose with the facts, misstating or exaggerating them. I used to think that you were just confused but you continue although corrected so I can only conclude that your thoughts are completely prejudicial whatever your motivation. You have no credibility. What the problem? Do you don't like this passport RX 340 flaws report? This is NOT MY OPPINION but the "con" part of the passport to world band radio magazine review.Do you think they are "prejudiced whatever their motivations"?.Then why you not call them and protest? You are making a ridiculous ninny paper prattling "You have no credibility" "you have not credibility" but this is only your nonsense oppinion because you want to deflect the attention and hide the passport report about your expensive receiver.Why don't accept it or complain with the right people [passport reviewers staff]about the review and stop this nonsense? This sample of the report [the flaws part] is an accurate quote of what the passport reviewer wrote and NOT MY OPPINION.I don't add anything or exaggerate anything.You are the only one confused and with credibility deficiency here. Ken |
I am glad that you received the data.............anyway, this chip is
specified as going down to 400kHz. I know that the phase detector requires a higher drive level as you go lower in frequency. As an example, it requires 800mV p-p at 455kHz. I am not sure how much it would need at 50kHz, or it it would even work. You would need to replace the 455kHz ceramic filters with some sort of 50kHz filter if you wanted to keep the noise floor low, at the very least. Pete starman wrote in message ... Pete KE9OA wrote: I haven't heard from you, so I will assume that you did receive the info. Pete I got them Pete. Thanks a lot. I haven't studied the schematic too much but I was wondering what changes (if any) would be needed to use the sync' detector with a 50-Khz I.F.? -----= Posted via Newsfeeds.Com, Uncensored Usenet News =----- http://www.newsfeeds.com - The #1 Newsgroup Service in the World! -----== Over 100,000 Newsgroups - 19 Different Servers! =----- |
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hi Eric:
i am responding here as my reader ate the thread... Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, at 3/4 wavelenghts resonance is at 736-kHz. as a 2 wavelengths beverage: 1.9-MHz. your antenna is quite capable on MW. but you misrepresented several things I had said and done in that message, and I do not take kindly to that. i appologize. do a search for "if you can't afford a real radio". As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. what frequency are they on? But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. neither radio is an IP3 god. a portable with LW loop will outperform a radio hooked to a wire requiring 40+ dB attenuation. Yes, but mostly I'm interested in the results of the design. Not that I'm not interested in the design, but the implementation is what made the '8500 immune to such things. radios are black boxes: feed them signals within specs and they perform predictably. ICOM probably left off the LW BPF to save $1. companies are cheap. Well, if I rejoin the group that works out there and set up a loop, I'll see if I can pick up the DFW OMs as cleanly as I could with the wire. Then I'll use my homebrew phaser with a loop and the wire. Probably Pete's loop. I still think you think you got more than you really did. Just out of curiosity, is that $1050 the original price of the R75? It was pretty high when it came out. WRTH 2000 states $1040. i know what the R75 is and is not. i am lucky to have Pete as a mentor. if you gain access to that antenna try your RX340 and bring along a 7030 owner. I do as well and will probably get one as soon as they're available. Pete's radio is going to be sweet! regards, phil :) |
In article , "phil :)"
wrote: hi Eric: i am responding here as my reader ate the thread... You can mark the group unread or un-subscribe and re-subscribe to the group to get all messages on the news server. snip But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. neither radio is an IP3 god. a portable with LW loop will outperform a radio hooked to a wire requiring 40+ dB attenuation. Blindly reading specifications can lead you astray on how the radio will perform. Some measurements require the radio be in a non-optimum reception state. I'm going to play devil's advocate and ask the question "why do some radios work much better than the IP3 @ 5KHz measurement would indicate?" Anybody feel free answer the question. -- Telamon Ventura, California |
"phil :)" wrote:
hi Eric: i am responding here as my reader ate the thread... Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, at 3/4 wavelenghts resonance is at 736-kHz. as a 2 wavelengths beverage: 1.9-MHz. your antenna is quite capable on MW. Oh, I don't argue *that*, I just argue that it wasn't resonant. Not that it matters, really, my WR-G303i reports its signal strength as 30 mV 120 miles away on a 400 foot wire broadside to the antenna. Flamethrower, indeed. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. what frequency are they on? Dunno. I don't keep up with the local doings of the broadcasters much. I assume they are in the old standard TV UHF band; 47 CFR 369 says that from 470 to 890 MHz, field strength on Table Mountain must be less than 30 mV/m. radios are black boxes: feed them signals within specs and they perform predictably. ICOM probably left off the LW BPF to save $1. companies are cheap. Actually I got word from someone who said that the '75 was considered a work in progress that never progressed. i know what the R75 is and is not. Then all I ask is that you remember that when you brag on it. Good bargain? definitely. Ultimate radio? No. i am lucky to have Pete as a mentor. That you are. I wish I was fluent enough in electronics to be able to speak the same language as Pete. if you gain access to that antenna try your RX340 and bring along a 7030 owner. No radio is perfect; the '7030 wouldn't hold up out there... To me the question would be whether or not the '340 would. Eric -- Eric F. Richards, "Nature abhors a vacuum tube." -- J. R. Pierce, Bell Labs, c. 1940 |
"Eric F. Richards" wrote: "phil :)" wrote: hi Eric: i am responding here as my reader ate the thread... Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, at 3/4 wavelenghts resonance is at 736-kHz. as a 2 wavelengths beverage: 1.9-MHz. your antenna is quite capable on MW. Oh, I don't argue *that*, I just argue that it wasn't resonant. Not that it matters, really, my WR-G303i reports its signal strength as 30 mV 120 miles away on a 400 foot wire broadside to the antenna. Flamethrower, indeed. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. what frequency are they on? Dunno. I don't keep up with the local doings of the broadcasters much. I assume they are in the old standard TV UHF band; 47 CFR 369 says that from 470 to 890 MHz, field strength on Table Mountain must be less than 30 mV/m. radios are black boxes: feed them signals within specs and they perform predictably. ICOM probably left off the LW BPF to save $1. companies are cheap. Actually I got word from someone who said that the '75 was considered a work in progress that never progressed. That's an understatement if I ever heard one! i know what the R75 is and is not. Then all I ask is that you remember that when you brag on it. Good bargain? definitely. Ultimate radio? No. i am lucky to have Pete as a mentor. That you are. I wish I was fluent enough in electronics to be able to speak the same language as Pete. if you gain access to that antenna try your RX340 and bring along a 7030 owner. No radio is perfect; the '7030 wouldn't hold up out there... To me the question would be whether or not the '340 would. Eric -- Eric F. Richards, "Nature abhors a vacuum tube." -- J. R. Pierce, Bell Labs, c. 1940 |
In article ,
N8KDV wrote: "Eric F. Richards" wrote: "phil :)" wrote: hi Eric: i am responding here as my reader ate the thread... Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, at 3/4 wavelenghts resonance is at 736-kHz. as a 2 wavelengths beverage: 1.9-MHz. your antenna is quite capable on MW. Oh, I don't argue *that*, I just argue that it wasn't resonant. Not that it matters, really, my WR-G303i reports its signal strength as 30 mV 120 miles away on a 400 foot wire broadside to the antenna. Flamethrower, indeed. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. what frequency are they on? Dunno. I don't keep up with the local doings of the broadcasters much. I assume they are in the old standard TV UHF band; 47 CFR 369 says that from 470 to 890 MHz, field strength on Table Mountain must be less than 30 mV/m. radios are black boxes: feed them signals within specs and they perform predictably. ICOM probably left off the LW BPF to save $1. companies are cheap. Actually I got word from someone who said that the '75 was considered a work in progress that never progressed. That's an understatement if I ever heard one! Welcome to the real world. Engineers will play with a design until they are happy with it but management runs the show. As soon as the pointy haired boss thinks that the design has met its goals the effort ends. -- Telamon Ventura, California |
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The only way that this should happen is if either the receiver is very
conservatively rated (do we know exactly what method was use to make this measurement?), or if the measurements were incorrectly done. I am not sure that real world performance would reflect those measurements, unless you are in an area where there are several strong signals that are only 5kHz apart. When I am measuring the overload point on the receiver that I am developing, it is very easy to drive the system into overload with a signal generator, yet with a 100 foot longwire in the presence of three 50kW MW broadcasters, no overload is present. I think that specs do tell the story, if the measurement system is properly set up. As an example, on one project, I needed to make some desense measurements from 5kHz to several hundred MHz away from the desired signal. The desired signal level was -140dBm. Using an HP8657 or an 8640B, the broadband noise from these two units was so high, even a 300MHz away from the desired signal, that I had to run the generators through a K&L tunable filter. The only generator that was slightly usable was an HP8642B. This is the one that uses the Modulated Fractional Divider, with the Sigma-Delta modulation. In reference to you statement about the receiver working better than its rated specs, I just don't think so, unless as I said earlier, the measurements were done incorrectly. The only way to really to a close-in IP3 measurement is to run the interfering signal through a very selective, deep skirted crystal filter. You need the interfering signal to have almost non-existant close-in phase noise; otherwise, the measurement is meaningless. Pete "Telamon" wrote in message ... In article , "phil :)" wrote: hi Eric: i am responding here as my reader ate the thread... You can mark the group unread or un-subscribe and re-subscribe to the group to get all messages on the news server. snip But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. neither radio is an IP3 god. a portable with LW loop will outperform a radio hooked to a wire requiring 40+ dB attenuation. Blindly reading specifications can lead you astray on how the radio will perform. Some measurements require the radio be in a non-optimum reception state. I'm going to play devil's advocate and ask the question "why do some radios work much better than the IP3 @ 5KHz measurement would indicate?" Anybody feel free answer the question. -- Telamon Ventura, California |
Hey Eric................anytime you have any questions, feel free to shout
me down, and I will be glad to answer them as clearly as I know how! The coolest thing about knowledge it that it can be shared. Someday, I will write a comprehensive book all about radio design...............I just need to learn more than the ..00000000000000000000000001% that I know right now! Pete "Eric F. Richards" wrote in message ... "phil :)" wrote: hi Eric: i am responding here as my reader ate the thread... Quite true, but that's not what you said -- you said it was "resonant." A nit-pick, perhaps, at 3/4 wavelenghts resonance is at 736-kHz. as a 2 wavelengths beverage: 1.9-MHz. your antenna is quite capable on MW. Oh, I don't argue *that*, I just argue that it wasn't resonant. Not that it matters, really, my WR-G303i reports its signal strength as 30 mV 120 miles away on a 400 foot wire broadside to the antenna. Flamethrower, indeed. As for the "flamethrower" at the end of the wire, they are in violation of 47 CFR 22.369, which explicitly lays out the field strength limits on Table Mountain. They may get grandfathered in, but now that the feds are reopening Table Mountain for NIST projects, the local HDTV wannabes are chafing at the restrictions -- even though their antennas would be about 40 miles away. what frequency are they on? Dunno. I don't keep up with the local doings of the broadcasters much. I assume they are in the old standard TV UHF band; 47 CFR 369 says that from 470 to 890 MHz, field strength on Table Mountain must be less than 30 mV/m. radios are black boxes: feed them signals within specs and they perform predictably. ICOM probably left off the LW BPF to save $1. companies are cheap. Actually I got word from someone who said that the '75 was considered a work in progress that never progressed. i know what the R75 is and is not. Then all I ask is that you remember that when you brag on it. Good bargain? definitely. Ultimate radio? No. i am lucky to have Pete as a mentor. That you are. I wish I was fluent enough in electronics to be able to speak the same language as Pete. if you gain access to that antenna try your RX340 and bring along a 7030 owner. No radio is perfect; the '7030 wouldn't hold up out there... To me the question would be whether or not the '340 would. Eric -- Eric F. Richards, "Nature abhors a vacuum tube." -- J. R. Pierce, Bell Labs, c. 1940 |
Now I know it is getting late...................sorry about those typos!
Pete "Pete KE9OA" wrote in message ... The only way that this should happen is if either the receiver is very conservatively rated (do we know exactly what method was use to make this measurement?), or if the measurements were incorrectly done. I am not sure that real world performance would reflect those measurements, unless you are in an area where there are several strong signals that are only 5kHz apart. When I am measuring the overload point on the receiver that I am developing, it is very easy to drive the system into overload with a signal generator, yet with a 100 foot longwire in the presence of three 50kW MW broadcasters, no overload is present. I think that specs do tell the story, if the measurement system is properly set up. As an example, on one project, I needed to make some desense measurements from 5kHz to several hundred MHz away from the desired signal. The desired signal level was -140dBm. Using an HP8657 or an 8640B, the broadband noise from these two units was so high, even a 300MHz away from the desired signal, that I had to run the generators through a K&L tunable filter. The only generator that was slightly usable was an HP8642B. This is the one that uses the Modulated Fractional Divider, with the Sigma-Delta modulation. In reference to you statement about the receiver working better than its rated specs, I just don't think so, unless as I said earlier, the measurements were done incorrectly. The only way to really to a close-in IP3 measurement is to run the interfering signal through a very selective, deep skirted crystal filter. You need the interfering signal to have almost non-existant close-in phase noise; otherwise, the measurement is meaningless. Pete "Telamon" wrote in message ... In article , "phil :)" wrote: hi Eric: i am responding here as my reader ate the thread... You can mark the group unread or un-subscribe and re-subscribe to the group to get all messages on the news server. snip But at very different signal strenghts and with very different characteristics: The R8B overloaded abruptly -- switching in a 1 dB step was enough to have it operating normally or overloaded. The R75, by contrast, had this "mushy" signal strength area. neither radio is an IP3 god. a portable with LW loop will outperform a radio hooked to a wire requiring 40+ dB attenuation. Blindly reading specifications can lead you astray on how the radio will perform. Some measurements require the radio be in a non-optimum reception state. I'm going to play devil's advocate and ask the question "why do some radios work much better than the IP3 @ 5KHz measurement would indicate?" Anybody feel free answer the question. -- Telamon Ventura, California |
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