[Drakelist] TR-4C S meter meter zero

Help! - Original Message -   With no incoming signals, including crystal calibrator, and with C-130 adjusted  for equal sounding white noise when switching between Lower and Upper I am unable to zero the S-meter in both sidebands.  It will zero with one or the other and then the

Re: [Drakelist] TR-4C S meter meter zero

-4C  S meter meter zero Help! - Original Message -   With no incoming signals, including crystal calibrator, and with C-130 adjusted  for equal sounding white noise when switching between Lower and Upper I am unable to zero the S-meter in both sidebands.  It will zero with one

Re: [Drakelist] TR-4C S meter meter zero

It’s a common problem with all of the TR-4 models, usually the LSB filter ( LSB on 80 meters ). 73, Gary http://home.roadrunner.com/~w8pu R-4A T4-X R-4B T4-XB R-4C T4-XC MS-4 L-4B RCS-4 2A 2B 2C 2NT 2CQ 2AS 4-LF TR-4 TR-4C TR-4CW/RIT RV-4C MC-4 TR-7 RV-7 CW-75 MS-7 WH-7 W-4 WV-4 MN-2700