I am new to collecting Drake radios but so far love the radios.? I have a R-4C & T-4xc(combo) and I also have a TR-4.? I am having the same issues with both so I am obviously doing something wrong.? Receiving is working fine on the C-Line and the TR-4.? I can also tune both of them as per manuals.? They are both putting out power on all bands.? CW seems to work fine and AM is clear when transmitting but on both when on SSB the signal is distorted and a lot of RFI.? I have tried the Heil AD-1-C with the Pro-7 Headphones and also a Shure SM7B microphone.? Then I talked to one of the engineers at Heil and I purchased the CC-1-C cable and the Gold Elite Vintage microphone and have the same issues.? What am I missing and where should I start?? Thanks for the help and look forward to hearing some things I should try.
Mark
KF0KZP