29 Apr
2016
29 Apr
'16
3:20 p.m.
I built a small PIC based controller that monitors the RS-232 feed to my rotator. If the antenna elevation is less than 5 degrees it sets the 'TX inhibit' input on my FT-817 and FT-897. Stops any beacons going out when ISS is out of range. Dick G4BBH