Hi all,
I just want to discuss with you this issue and most of all get your opinion, maybe you already have had that issue on a similar chassis.
Fact is that I have a fully working radio (all modes, RX and TX) with the exception of FM TX which works, but the modulation seems raspy aka not crystal clear at the end of sentences I would say.
Ideas could be a lack of grounding at the mic section, but then why is AM and SSB flawless?
Also, maybe some caps around the PLL.
Other than that the radio is fully original, no caps were changed nor any mod performed on it.
FYI, I tried to act on VR5 (FM dev) but no changes, a bigger dev will make the issue bigger, a low dev will make it less noticeable, but then modulation is not strong enough.
Thanks for your inputs.
73 de HA7WX / 14AT733 / KP733
I just want to discuss with you this issue and most of all get your opinion, maybe you already have had that issue on a similar chassis.
Fact is that I have a fully working radio (all modes, RX and TX) with the exception of FM TX which works, but the modulation seems raspy aka not crystal clear at the end of sentences I would say.
Ideas could be a lack of grounding at the mic section, but then why is AM and SSB flawless?
Also, maybe some caps around the PLL.
Other than that the radio is fully original, no caps were changed nor any mod performed on it.
FYI, I tried to act on VR5 (FM dev) but no changes, a bigger dev will make the issue bigger, a low dev will make it less noticeable, but then modulation is not strong enough.
Thanks for your inputs.
73 de HA7WX / 14AT733 / KP733