I use a 706MKIIG for my Tx rig, controlled by Gpredict (via Hamlib), and it DOES change the Tx frequency during transmit.
The only problem I've seen is that it doesn't seem to maintain Tone settings, so if you need a tone on the uplink, you have to constantly turn it on as everytime the frequency updates the tone setting is erased.
Can SatPC32 (or any other software for that matter) change the transmit frequency on an Icom transceiver while it is transmitting? Yaesu doesn't permit this. I'm particularly interested in the Icom IC-7100. Anybody know? Reading through the SatPC32 docs I see that there is a sentence about Yaesu rigs (FT-817, 818, 857, 991 etc) saying it can't be done), but no similar statement about Icoms (706, 7000, 7100 etc.) Thanks and 73, Ken Alexander So Phisai, Thailand Blog: bueng-ken.com