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John Smith wrote:
Dee: The only person talking 300 baud is you, No. The FCC says so too. I told you to throw away that 300 baud modem and get a decent one (or revamp an old phone modem to your needs.) On most of the HF/MF amateur bands, amateurs in the USA are limited to 300 baud for the transmission of "data". Now it might be argued that sending .jpgs is an "image" mode, and is only allowed in the 'phone subbands, with correspondingly wider bandwidths. But there's more to it than just hooking a typical computer modem to an SSB rig. Let's say some hams find a way to fit, say, 14 kbaud into an SSB bandwidth with characteristics that will work on the HF ham bands. And suppose they get FCC to say it's OK and all that. The transmission of a 1 meg .jpg will still take more than a minute with no errorchecking. Since you didn't even understand that, you certainly won't grasp the rest... Try grasping the current regulations, John.... 73 de Jim, N2EY |
From: "John Smith" on Fri 1 Jul 2005 12:25
Dee: My "simple math" is actually just your "simple mind" and you cannot tell the difference. Dee is smart. But, her emotional LOVE of "CW" over-rides her reasoning ability. If I send perfect video, encrypted off a DVD you will indeed notice that it slows, pauses and is not acceptable for broadcast--however, if you encrypt the sound to mp3 and the video to avi it becomes childs play for anyone who is technically savvy and results in video and audio which is magnitudes faster than SSTV. Get away from these ancient amateurs who have gone blind and ask where it has "ALREADY BEEN BEING DONE FOR A DECADE!!!" Actually, FOUR decades. The Bell Systems' video telephone. There's a lot of its history on the Internet. I can dig up the URL from an archive CD which has digitization of Bell Labs documents in it...but, it's no use taking the trouble because the "CW" LOVERS in here won't have any of it. This dial-up modem I and hundreds of thousands of others are using sends/receives (full duplex) 56K rates in a 3 KHz BW. To follow the "simple arithmetic rules" (from Carson's series equations), the telephone bandwidth "should be" about 100 KHz! Obviously it isn't. 100 KHz BW down to fit in a 3 KHz BW! :-) MPEG4 compression-expansion for real-time video is quite alive and well on our Comcast cable digital feed. About 230 TV channels in the bandwidth (digitally encoded) where we had only about 60+ in analog form. BTW, that includes the DTV already broadcast which is also on the same digital cable feed...and DTV already has over 3:1 compression to fit inside an alloted 6 MHz BW. [more pixels than analog equivalent but an exact number will bring out those nasty nit-pickers who will midsdirect the thread into some "never ending story" about compression] Military small-unit field radios have, for two decades, used digitized VOICE that fits inside a 3 KHz BW, with or without encryption. Standard COMSEC, either internal (built-in) or external as a peripheral unit. There's lots more examples of digitization and compression, from license-free FRS toy walkie-talkies to the 2.4 GHz cordless phones to tens, no hundreds of thousands of WLANs at work and at home, all cramming lots of data into less bandwidth than thought possible...carrying with it real-time video from closed circuit TV cameras and (analog) wide-band music. Hundreds of texts available at Amazon on the subject. "CW" LOVERS will have NONE of that. Their snarly tones are like the old Spark signals...growly and taking up bandwidth equal to all of 75 meters. Standing there looking stupid is no way to go through life girl! There's no accounting for taste when emotionalism over the narrowbanded amateur "CW" LOVE pushes aside logical reasoning. None of the "CW" LOVERS in here will have any of it until the ARRL anoints the subject with a papal Sumner blessing. Amen. |
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All that wire on the airfield.....must have been ruff landing those
bi-planes. Dan/W4NTI wrote in message oups.com... From: "K?B" on Fri 1 Jul 2005 01:47 wrote We got REA in the summer of 1954 when I was 14 years old. Running water too. (I was 8 or 9 when I learned Morse.) 73, de Hans, K0HB Oh, my, a numbers coincidence. Gee whiz, in late summer of 1954, Army station ADA started moving to its new site NW of Tokyo. At 14 years old I didn't much give a rats ass about the fact that an Army radio station was moving to a different spot in Japan. (Come think of it, I still don't give a rats ass.) I was much more excited about getting electric lights in our farm buildings and home. I can understand your "not giving" about others. :-) Frankly, Scarlet, I don't give a damn for young teeners out in the boonies suddenly getting ELECTRICITY in 1954! How about that? Too bad you couldn't have tapped into the 300 KWe out of each of the 16-cylinder marine diesels running generators at Kashiwa in 1954. Would have lit up your life some... Of course the main room at Kashiwa transmitter building didn't have but about 8 transmitters in 1954, there would be 43 Big Ones in there by 1956 and completion of the move. Not to mention wire antennas all over the airfield, including full rhombics. 1 KW minimum, 40 KW maximum RF outputs. Not a single one of them using on-off keying radiotelegraphy. Sunnuvagun! When one stood at one end and looked down the row to 150 feet or so in the distance and saw nothing but high power HF transmitters side by side on each side, it was bound to have an impression. Then out in the microwave building with four 24-channel microwave radio relay terminals that were the main link with anyone that HAD to be kept ON 24/7. [not to mention the old carrier bays] Perhaps not as much as suddenly getting electricity where one had nothing but wind-charged batteries but then that's us "city boy sissies" I'm sure you'd apply. Life must have been extraordinarily TOUGH way, way out on the farm. You have my sympathies. Nothing else. Just sympathies. :-) dot dot |
wrote in message ups.com... From: on Jul 1, 12:23 pm wrote: I thought it might be neat to get a ham license in addition to the Commercial First 'Phone of 1956. Got up to 8 or 9 WPM and wondered what the hell I was wasting all that time for? Thank you for confirming something I have suspected for a long time now, Len. What...you've NEVER seen my statement BEFORE? :-) Do the math. 1959 was how long ago? FORTY-SIX years. Let's see...in 1959 I was three years from leaving a MAJOR HF communications complex, a part of ACAN that had existed since 1942 and had changed its name to STARCOM. Worldwide network of HF stations...running TTY and Voice...NO "CW." Big Time in HF. So, I'm supposed to get into the "cutting edge of amateur technology" by LEARNING/TESTING FOR RADIOTELEGRAPHY?!?!? Wow...talk about being BRAIN DEAD in PA! And now..."you've JUST suspected it?" :-) :-) :-) BWAHAHAHAHAHAHAHAHAHAHAHAHA!!!!!!!!!!!!!!!!!!!!!!! !! [to use a message device beloved by your buddie, the TN Talibanian...who does that frequently] Class D CB was a year old back in 1959, I had a nice, conversion-finished Austin-Healey sports car in Greater L.A. which then had a population of about 6 million and was considered to be the aerospace capital of the USA doing high- tech electronics, was seriously considering changing my major from illustration to engineering...and I was "supposed" to be REGRESSING TO RADIOTELEGRAPHY in order to show "dedication and committment to the ham community"?!?!?!?!? Wow, yeah, I could "get my very own radio station" and get "my very own callsign" as a radio amateur!!! I was already a professional in radio-electronics and had spent three full years doing HF radio communications in the military. Ptui. I went to Henry Radio in L.A. and bought a Johnson Viking Messenger CB that year. Worked great in the aluminum-body Austin-Healey. Got my "very own callsign" (11W3725)... BWAHAHAHAH...as if that 'meant' anything. GAVE UP any thought of "showing dedication and committment to some amateur community" by learning RADIOTELEGRAPHY as "cutting-edge technology" in 1959. I should learn morse just to "talk to the rest of the world?" Been there, done that 24/7 already. ...and you "just suspected it!" Just HOW LONG does it take to close the synapses in your mind, whiz kid? By the way, how many children have you parented? Poor Lennie the loser is a real trip. Military comms and CB radio. Then compares it to ham radio. Bottom line, the only thing they have in common is the fact they operate on HF radio....period. Bottom line is he couldn't pass the CW test, and gave up. Now we get to listen to him brag about shoving a broom around a transmitter site while a lower ranked enlisted man. BIG DEAL. Dan/W4NTI |
John Smith wrote:
Mike: Yes, that quite well proves you don't even have a clue where to begin and what would be a practical method to accomplish it... ... don't feel alone, these ancient brain deads here are in the same boat and have ran off and ****ed off all those who can do such things... ... at first I just thought you guys were probably not interested in video conferance by radio--now I find out you are simply unable and even lack the basic concept of how it is done! Elucidate! I wait. - Mike KB3EIA - |
John Smith wrote:
Dee: The only person talking 300 baud is you, I told you to throw away that 300 baud modem and get a decent one (or revamp an old phone modem to your needs.) Since you didn't even understand that, you certainly won't grasp the rest... Elucidate! Tell us the manner in which we can do it. - Mike KB3EIA - |
"Ginger Raveir" wrote in message ... Wake up and smell the coffee. Ham radio is and has been for many years, a dead and dying hobby, where today old white men form the core of the hobby. Thats it....bring in the "Ham Radio is a racist organization". It isn't our fault more folks other than "white" dont join up. I have seen no obstructions put up to keep them out. So who is at fault here? Right. Dan/W4NTI |
"Kim" wrote in message m... "Dan/W4NTI" wrote in message ink.net... Yes she did....then proceeded to show us how ignorant she was/is. Proof positive of the dumbing down of Amateur Radio....IMHO. Dan/W4NTI And, you're proof positive of what alcohol can do to a 1/2 way decent mind. Kim W5TIT Thats funny Kim.......experience perhaps? Dan/W4NTI |
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