Hi! Homework complete! Yes, Garey was correct !!! The RF Output meter was not sensitive enough to balance the Balanced Modulator and I think I followed his procedure!
I connected a Drake 2-C, with the mute cable and the antenna cable connected to the rx output of the T-4XB and then "spotted", so that the RX and the TX were at the same frequency. The 2-C was set at with the function EXT-mute. Then, with the "Transceive function of the T-4XB set at SPOT", I tuned up in the TUNE position on LSB, then switched to CW and closed PTT. Then I listened on the 2-C for the "suppressed" carrier. Set AVC to FAST, and adjusted the Carrier Balance control (10 turn pot) and C6 for minimum S-Meter reading. I could see the difference moving the Carrier Balance pot on the RX s-meter !!!. While the Carrier pot can be moved by 10 turns or so, C-6 seemed to move by just 90 degrees (a quarter of turn). I didn't want to force it as I was afraid to break it. Do you know if C-6 moves just by that little? 73, Frank IZ2OOS _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
