My just-acquired Model 544 manual has no mention of any of this, nor do I understand how this 5-band radio can receive 10.000Mhz. The manual does, however, reveal in a picture of the bottom of the ra
I have a nice Model 544 that just developed a transmit/receive changeover problem that I need some assistance diagnosing. All was working FB in QSO on 75m LSB when I unkeyed the mic and the S-meter w
Ed, Thanks for that tip! A little DeOxit on the T/R-RX antenna switch really woke up the receiver. S meter readings are higher now, and I'll let you know if it also fixed the TX/RX changeover problem
I'm firing up my first amp and am a little unsure on wiring. In an all-Collins setup the 30L-1 has a second cable from the transmitter to the amp, presumably to control keying. Is this required with