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Icom IC-R75 Question
I just bought a new Icom radio. It seems to be awesome for tuning
around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. |
In article ,
(Sara) wrote: I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. If you have Kiwa do the work you don't have to solder. As you have discovered the R75 is a capable SSB receiver but not so good for AM broadcasts. There are several modifications you can pay Kiwa to make on the radio so it will perform better on AM broadcasts. Here is the link http://www.kiwa.com/R75.html Here are some of the upgrades you might consider: Synchronous Detector Upgrade $45.00 Audio Upgrade $35.00 High Fidelity Audio Filter Upgrade $35.00 The filter issue is a little tricky with this radio. You will need to maintain a filter ~ 2.4 to 2.8 KHz for average SSB conditions and you will need to have one at ~ 4 to 6 KHz for AM high fidelity. In addition you will need to adjust both pass-band controls so either the upper or lower sideband is fully in the radios pass-band. You will void the radios warranty by having it modified. Get an external bookshelf speaker and / or headphones will also help the audio fidelity. There is a Yahoo news groups devoted to this topic by the way. http://groups.yahoo.com/group/icomr75/messages Good luck with the upgrades. -- Telamon Ventura, California |
Sara:
- What shortwave Programs on AM ( frequencies & times) are hard to hear? - Try some external PC speakers; Harvey - PS: Does your little brother have trouble at school or has he changed his name ?? I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. |
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SFA,
Go to the Icom IC-R75 eGroup on YAHOO! GoTo= http://groups.yahoo.com/group/icomr75/ There you will get some Helpful Advise and Useful Information from other Icom IC-R75 Owners. Half of what you get here will be digs and put downs from those NewGroup Members who DO NOT LIKE the Icom IC-R75 Receiver. FWIW: The Kiwa Mods are very good and make the Icom IC-R75 a better Receiver. GoTo= http://groups.yahoo.com/group/icomr75/files/R75%20mods/ Eleven separate Files of specific Modifications for the Icom IC-R75. IMHO: An using an External Speaker with the Icom IC-R75 is a MUST ! GoTo= http://groups.yahoo.com/group/icomr75/message/4360 The Most Often Recommended External Speakers for the Icom IC-R75. That were Suggested as working well with the Icom IC-R75 by the Members of the eGroup. TIP: Check-Out "Phil's R75 Cookbook" [PhilCook.pdf] GoTo= http://groups.yahoo.com/group/icomr7...l%27s%20Shack/ In Phil's R75 Cookbook you will find many Helpful Hints on "How To Get The Best Out Of Your Icom IC-R75". tMr ~ RHF = = = Thats "MY" Radio! - The Icom IC-R75. .. .. = = = = = = (Sara) wrote in message . com... I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. .. |
N8KDV wrote in message ...
Kenneth wrote: (Soames123) wrote in message ... Sara: - What shortwave Programs on AM ( frequencies & times) are hard to hear? - Try some external PC speakers; Harvey - PS: Does your little brother have trouble at school or has he changed his name ?? I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. Sara: - What shortwave Programs on AM ( frequencies & times) are hard to hear? - Try some external PC speakers; Harvey - PS: Does your little brother have trouble at school or has he changed his name ?? I have some more questions,What is the first letter of your little brother name "S" or "L".Why you start a new tread It's called a 're-tread' Kenneth. ;-) Thanks for the clarification, Steve. |
Kenneth wrote: I have some more questions,What is the first letter of your little brother name "S" or "L".Why you start a new tread It's called a 're-tread' Kenneth. ;-) Thanks for the clarification, Steve. No problem, my ICOM loving fellow listener. |
I have not installed the DSP yet. Will the DSP make much difference
for AM listening? Sara (Sara) wrote in message . com... I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. |
I have not installed the DSP yet. Will the DSP make much difference
for AM listening? Maybe. For my use, when listening to the AM band, most of the time a good loop antenna or a phased array of antennas does far more for killing noise and nulling unwanted stations than any DSP could hope to do... BUT... sometimes the mild (conservative) use of the DSP noise reduction CAN help get rid of the last bits of unwanted noise after I've done what I can with the antenna and other settings. Icom's DSP unit (UT106) also has an automatic notch filter which works very well, killing whistling and whining which comes from two or more stations bashing into each other on the same frequency. Without the UT106, the notch feature is inoperable. But that notch filter on the DSP unit does WONDERS on crowded amateur and int'l broadcast bands. I use that feature quite a bit, and it's only available with the UT106 installed. Bottom line is, if you already have the DSP unit, it's easy to install (no soldering, just a few turns with a screwdriver) and you might as well have it there, ready for those times when you DO need it. If you don't already have it at hand, you may wish to do a good bit of AM listening first, to see if you need anything more. I'd say install it, or if you're not comfortable doing it yourself, find someone you trust to do it for you. |
(Sara) wrote in
om: Refer to http://www.rnw.nl/realradio/icr75.html and read closely. The review is actually 3 links long (see the "continue reading" at the bottom of each page) and would actually consist of: http://www.rnw.nl/realradio/icr75.html http://www.rnw.nl/realradio/icr75a.html http://www.rnw.nl/realradio/icr75b.html I have the R-75 and the Yaesu FRG-100. Both are very admirable receivers. Regards. Article excerpts. "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, we note instances on weaker signals where the noise reduction works to some degree in the AM mode." "Spot the Difference with the Sync What is the singular failing of this receiver? In our opinion, there is virtually no difference between synchronous AM and AM reception. The synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. The Lowe HF-150 synchronous modes and performance are far superior. We urge that ICOM correct the synchronous performance in future models and make available a retrofit ROM available to current customers. Fortunately all is not lost here. As the receiver's SSB reception is quite good, in difficult or crowded band conditions, we simply tune in the appropriate sideband of the desired signal and, if necessary, adjust the PBT controls." I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. -- Never say never. Nothing is absolute. |
Sara:
- What shortwave Programs on AM ( frequencies & times) are hard to hear? Actually I like to tune around to see what I can hear. No real favorites yet. Nothing seems to come in real good. - Try some external PC speakers; Will do. Sara Harvey - PS: Does your little brother have trouble at school or has he changed his name ?? I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. |
Go to the Icom IC-R75 eGroup on YAHOO!
GoTo= http://groups.yahoo.com/group/icomr75/ FWIW: The Kiwa Mods are very good and make the Icom IC-R75 a better Receiver. Ok, I guess it's Kiwa not Kiwi. Should I just get all the Kiwa mods? I listen to 7150 - 7300 in daytime lsb. I want to hear BBC, Radio Netherlands, Australia, New Zealand, maybe some Africans. GoTo= http://groups.yahoo.com/group/icomr75/files/R75%20mods/ Eleven separate Files of specific Modifications for the Icom IC-R75. IMHO: An using an External Speaker with the Icom IC-R75 is a MUST ! I have a cheap Radio Shack speaker hooked up and that helped A LOT! I haven't installed the DSP yet. My Icom sounds good in lsb but AM is just not as clear. Perhaps I don't have something set right? Filter settings? GoTo= http://groups.yahoo.com/group/icomr75/message/4360 The Most Often Recommended External Speakers for the Icom IC-R75. That were Suggested as working well with the Icom IC-R75 by the Members of the eGroup. TIP: Check-Out "Phil's R75 Cookbook" [PhilCook.pdf] GoTo= http://groups.yahoo.com/group/icomr7...l%27s%20Shack/ In Phil's R75 Cookbook you will find many Helpful Hints on "How To Get The Best Out Of Your Icom IC-R75". Yes, I've been reading it. Thank you so much for helping. Sara tMr ~ RHF = = = Thats "MY" Radio! - The Icom IC-R75. |
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Sara wrote:
Go to the Icom IC-R75 eGroup on YAHOO! GoTo= http://groups.yahoo.com/group/icomr75/ FWIW: The Kiwa Mods are very good and make the Icom IC-R75 a better Receiver. Ok, I guess it's Kiwa not Kiwi. Should I just get all the Kiwa mods? I listen to 7150 - 7300 in daytime lsb. I want to hear BBC, Radio Netherlands, Australia, New Zealand, maybe some Africans. GoTo= http://groups.yahoo.com/group/icomr75/files/R75%20mods/ Eleven separate Files of specific Modifications for the Icom IC-R75. IMHO: An using an External Speaker with the Icom IC-R75 is a MUST ! I have a cheap Radio Shack speaker hooked up and that helped A LOT! I haven't installed the DSP yet. My Icom sounds good in lsb but AM is just not as clear. Perhaps I don't have something set right? Filter settings? GoTo= http://groups.yahoo.com/group/icomr75/message/4360 The Most Often Recommended External Speakers for the Icom IC-R75. That were Suggested as working well with the Icom IC-R75 by the Members of the eGroup. TIP: Check-Out "Phil's R75 Cookbook" [PhilCook.pdf] GoTo= http://groups.yahoo.com/group/icomr7...l%27s%20Shack/ In Phil's R75 Cookbook you will find many Helpful Hints on "How To Get The Best Out Of Your Icom IC-R75". Yes, I've been reading it. Thank you so much for helping. Sara Hi, The Yahoo-R75 group are the experts on mod's for your radio. They can advise you on what mod's are most important. I would suggest the AGC and sync' detector mod's. BTW- Soldering is easy to learn and it allows you to do all kinds of things with electronics. You can get a low power soldering kit at Radio Shack for about $15.00 If you also buy some componants such as an assortment of resistors (about $3.00) and a basic printed circuit board kit, you can practice soldering. You should also learn how to -unsolder- parts for doing a mod'. This requires a few more tools which RS also has. If you get really good at it, you might be able to do some of the mod's on your R75! Have fun. -----= 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! =----- |
I live in an apartment complex and am using a wire to the red antenna
jack, I think. I thought about connecting it to my rain gutter somehow. Hehe, just make sure you remove that antenna from the radio when lightning approaches! I only mentioned the larger antenna system/phasing as a personal comparison in my listening experience, please don't think it was a suggestion for you to go to the trouble to do the same. The DSP function becomes more attractive when you are using less of an antenna and have more home/apartment/building 'noise' than other folks. In your case, you should see more help from the DSP's noise reduction (if used conservatively) than I do, given our differing antenna set-ups. Just take a length of wire, attach a little, metal alligator clip to the outside end, and clip it to your rain gutter wherever it is the closest or most convenient. The other end of the wire goes into your red clip input on the radio. Undo that clip connection if there's any lightning, and throw the lead outside the window (making sure it's retrievable later, of course). Linus |
Soliloquy wrote in message
"Although the manual clearly states the DSP and ANF functions work only in the SSB mode, we note instances on weaker signals where the noise reduction works to some degree in the AM mode." The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync What is the singular failing of this receiver? In our opinion, there is virtually no difference between synchronous AM and AM reception. The synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. Ken I just bought a new Icom radio. It seems to be awesome for tuning around the ham bands in LSB. But when tuning for Shortwave broadcast programs in AM it doesn't seem as listenable. Do I need to have my Icom modified? Kiwi mods? Any help appreciated. Please keep it simple. Sara PS: I don't solder. |
Soliloquy wrote in message
"Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. |
Kenneth wrote: Soliloquy wrote in message "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. But hey! You can accomplish this in a much handier fashion with the R8B! With a better sync detector! Plus, you can use any darn filter you want! Just a button push away! Simplicity! No mods required! (can you imagine?) By golly! Steve Holland, MI Drake R7, R8 and R8B "I swear by, not at, Drake receivers" © http://www.iserv.net/~n8kdv/dxpage.htm |
N8KDV wrote in message ...
Kenneth wrote: Soliloquy wrote in message "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. But hey! You can accomplish this in a much handier fashion with the R8B! With a better sync detector! Plus, you can use any darn filter you want! Just a button push away! Simplicity! No mods required! (can you imagine?) By golly! Hi Steve:Yes with the R8B is like having a pinto with an automatic transmission.My toyota [Icom R75]have a manual transmission [339 comparator sync det AGC mod] but with a holley carburator [DSP]and two reinforcements [2 pre-amps]and an alterated motor with [Pete's MW attenuator removal mod] 2.4,3.3,4,6khz filters,and pro mechanic Phil, phidelity mod.An oustanding toyota that surpassed an automatic pinto[drake R8B]in hard core dxing sometime ago in a "simplicity" way. |
Kenneth wrote: N8KDV wrote in message ... Kenneth wrote: Soliloquy wrote in message "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. But hey! You can accomplish this in a much handier fashion with the R8B! With a better sync detector! Plus, you can use any darn filter you want! Just a button push away! Simplicity! No mods required! (can you imagine?) By golly! Hi Steve:Yes with the R8B is like having a pinto with an automatic transmission.My toyota [Icom R75]have a manual transmission [339 comparator sync det AGC mod] but with a holley carburator [DSP]and two reinforcements [2 pre-amps]and an alterated motor with [Pete's MW attenuator removal mod] 2.4,3.3,4,6khz filters,and pro mechanic Phil, phidelity mod.An oustanding toyota that surpassed an automatic pinto[drake R8B]in hard core dxing sometime ago in a "simplicity" way. LOL... Thanks for getting my day off to a start with a good laugh! Steve Holland, MI Dake R7, R8 and R8B "I swear by, not at, Drake receivers" © http://www.iserv.net/~n8kdv/dxpage.htm |
N8KDV wrote in message ...
Kenneth wrote: N8KDV wrote in message ... Kenneth wrote: Soliloquy wrote in message "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. But hey! You can accomplish this in a much handier fashion with the R8B! With a better sync detector! Plus, you can use any darn filter you want! Just a button push away! Simplicity! No mods required! (can you imagine?) By golly! Hi Steve:Yes with the R8B is like having a pinto with an automatic transmission.My toyota [Icom R75]have a manual transmission [339 comparator sync det AGC mod] but with a holley carburator [DSP]and two reinforcements [2 pre-amps]and an alterated motor with [Pete's MW attenuator removal mod] 2.4,3.3,4,6khz filters,and pro mechanic Phil, phidelity mod.An oustanding toyota that surpassed an automatic pinto[drake R8B]in hard core dxing sometime ago in a "simplicity" way. LOL... Thanks for getting my day off to a start with a good laugh! Steve Hi Steve:Thanks for you nice and friendly [not belligerent response].In the 2004 you seem to be in good shape with a nice site and giving good advice to the inexperienced and not quarreling with anybody [until now].If we don't start a new 2004 radios war again maybe we can make an arrangement to have a "car race" [hard core live dxing competition] between my toyota R75 vs pinto R8B soon. For race judges my recommendations are Starman and Les [from the R8B group] and Phil and M2 [from the Icom R75 gang. Ken |
Kenneth wrote: N8KDV wrote in message ... Kenneth wrote: N8KDV wrote in message ... Kenneth wrote: Soliloquy wrote in message "Although the manual clearly states the DSP and ANF functions work only in the SSB mode, The Owners Manual is wrong the DSP and ANF work ok in the AM mode. "Spot the Difference with the Sync synchronous mode includes both sidebands; there is no option to choose the lower or upper sideband. This is true in the stock unit but with the kiwa sync det mod you can chose between lower or sideband in sync AM mode manually using the 2.4 stock filter and the PBT. But hey! You can accomplish this in a much handier fashion with the R8B! With a better sync detector! Plus, you can use any darn filter you want! Just a button push away! Simplicity! No mods required! (can you imagine?) By golly! Hi Steve:Yes with the R8B is like having a pinto with an automatic transmission.My toyota [Icom R75]have a manual transmission [339 comparator sync det AGC mod] but with a holley carburator [DSP]and two reinforcements [2 pre-amps]and an alterated motor with [Pete's MW attenuator removal mod] 2.4,3.3,4,6khz filters,and pro mechanic Phil, phidelity mod.An oustanding toyota that surpassed an automatic pinto[drake R8B]in hard core dxing sometime ago in a "simplicity" way. LOL... Thanks for getting my day off to a start with a good laugh! Steve Hi Steve:Thanks for you nice and friendly [not belligerent response].In the 2004 you seem to be in good shape with a nice site and giving good advice to the inexperienced and not quarreling with anybody [until now].If we don't start a new 2004 radios war again maybe we can make an arrangement to have a "car race" [hard core live dxing competition] between my toyota R75 vs pinto R8B soon. For race judges my recommendations are Starman and Les [from the R8B group] and Phil and M2 [from the Icom R75 gang. Ken You don't understand my linguistically challenged friend! You've already lost! No rematches! Thanks again for the humour! Steve Holland, MI Drake R7, R8 and R8B "I swear by, not at, Drake receivers" © http://www.iserv.net/~n8kdv/dxpage.htm |
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"Kenneth" wrote in message om... LOL... Thanks for getting my day off to a start with a good laugh! Steve Hi Steve:Thanks for you nice and friendly [not belligerent response].In the 2004 you seem to be in good shape with a nice site and giving good advice to the inexperienced and not quarreling with anybody [until now].If we don't start a new 2004 radios war again maybe we can make an arrangement to have a "car race" [hard core live dxing competition] between my toyota R75 vs pinto R8B soon. For race judges my recommendations are Starman and Les [from the R8B group] and Phil and M2 [from the Icom R75 gang. Ken Phil??????? NO FAIR : ) DeWayne |
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