I am somewhat new to satellites, but I have a question. I use a computer program to help with Doppler shift and to manage satellite memories. On AO-7 and VO-52 I have the following set as the middle of the pass band. This is what I set into the radio VFO. I have noticed that I have to adjust the transmitter frequency. I thought that the TX and RX would track each other?
Does the relationship between TX and RX frequencies on the satellite change?
If I am setting the wrong base frequency into my VFO's for these two satellites, what are better frequencies to use?
Thanks
Satellite
Lower
Upper
middle
VO-52A
UPLINK
435.2200
435.2800
435.2500
DOWNLINK
145.8700
145.9300
145.9000
VO-52B
UPLINK
435.2250
435.2750
435.2500
DOWNLINK
145.9250
145.8750
145.9000
AO-7 A
UPLINK
145.8500
145.9500
145.9000
DOWNLINK
29.4000
29.5000
29.4500
AO-7 B
UPLINK
432.1250
432.1750
432.1500
DOWNLINK
145.9750
145.9250
145.9500
Mike McConnell, Ph.D.
W0PD
1518 Willson Ave.
Webster City, IA 50595
515-835-9363