I do the opposite. I find it's a lot less of a pain to manually control an azimuth-only rotator than to have to manually tune both VFOs to correct for Doppler and hunt for signals. Having a panadapter display of the downlink passband is incredibly helpful at avoiding the need for the latter. By twirling the mouse wheel, I can control the VFO (with automatic reverse-tracking) at various tuning speeds based on which digit of the Rx frequency in the HDSDR application the mouse pointer is on: 100Hz, 1kHz, 10kHz etc or just click on the signal in the waterfall display.
73, Ryan AI6DO On Wednesday, February 6, 2019, 11:38:58 AM PST, jim@k6ccc.org jim@k6ccc.org wrote:
The thing to keep in mind is that there are lots of out there that are not capable of operating fully computer controlled because of equipment limitations. Although it's been a few years since I've been on the birds, I used an early Yaesu 736 which has one way CAT control. Although theoretically possible to completely contgrol frequency with a PC that way, it is such a pain in the ass to dial around a passband looking for contacts from the computer as compared to grabbing the VFO knob on the radio. I usedd teh computer to control the antennas but not the VFO.
73 ----- Jim Walls - K6CCC jim@k6ccc.org