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Steve, Thanks for info via drop box. I haven’t been successful in getting the earphone output to the app on my Lenovo laptop. All my readings are crudely acoustically coupled from the speaker via

Kurt, I doubt that the audio amp is the problem.? If you plug your headphones into the front display, is the noise level similar on EasyRTA? Here's a link to the document that shows my

Thanks all for your responses, more info: Noise across modes AM>USB> RTTY>CW Noise across bands about the same except 435Mhz which is clearly noisier EasyRTA (cool, thanks Steve) Noise waveform bell

Kurt, No, the problem is not primarily frequencies above 5KHz, but possibly an overal increase in all audio frequencies that pass through the selected BP filter (200-4000 Hz).? But I haven't heard

Here is another completely different direction. And the benefit ,even f it doesn’t help the problem, it will be good maintenance . Snug all circuit board mounting screws for best ground possible. I

There is an Icom service bulletin on this. AM-100606C-ID lists one .01uFd capacitor and an insulating sheet behind IC2602, the audio amplifier. The capacitor is on the input to the amp. It’s an

Possibly the hiss comes from the signal not being lined up properly with the SSB filter. If the frequency is low in relation to the filter it will pass higher frequency noise. Some radios have if

Possible to reduce the hiss like this : http://radioamateur.forumsactifs.com/t2025-reduire-le-souffle-present-lors-de-l-ecoute-sur-casque-ecouteur-postes-radioamateurs-ic7000-tm733-etc (use google

Steve, Thanks for the info. Would it be possible to purchase or construct a cut off filter, say at 6-7 KHz and simply put it at the speaker? Kurt KD6LZV

Kurt, I did some testing with my 7K (and an Elecraft K3), measuring audio noise levels on different bands with the pre-amp OFF and ON using an analyzer.? I have a report with spectrographs, but

The VA3IUL fix would seem to only apply to FM signals, since the cap is added to the FM -6dB/octave de-emphasis circuit.? Audio for other modes (CW, SSB, AM) is fed from IC2551 pin 1 to the audio

not sure but there have been 7k's that have a higher freq hiss https://www.qsl.net/va3iul/Files/IC7000_audio_noise.pdf

My 7000 seems to have developed a strong hiss in the receive mode. Originally, I thought it was is atmospheric but the noise didn’t change when the coax was disconnected. some details that help

Tnx Danny, Looking for parts radios... GL es 73 John KR?P ------------------------------------------------------------------------ *From:* Danny K5CG [mailto:k5cg@...] *Sent:* Thursday,

https://eham.net/classifieds/604682 In case you're looking for one. It's not mine, I just came across the ad.

I haven't seen this problem before, but did check my two 7K's ( circa 2006 & 2010) per your description and don't see anything similar. I suggest looking at the output of the Driver board to see if

Hello, I am new to this group. I did try to send this before and I didn't see it pop up in the list so apologies if it comes up twice. I have been looking at a crook IC-7000 for a friend of mine which

Hello, I am trying to fix a friend's 7000 that is iffy on TX on 10 & 14 MHz. I immediately think that there maybe an issue with the LPF relays / components on these bands as I see that the 10 and 14

As much as I love my IC-7000, the form factor question is easy.? The IC-7000 has a bunch of menus (3 groups of 3) and the screen is fairly small (for old eyes).? I also have three IC-7100 units.?

I was afraid that might be an issue. Never have understood why Icom went to that form factor. Could have at least put a 1/4‐20 tripod mount on it. 73 Joe KR0UT