Hello there. I’m here because I’ve run into a wall and need some help or instruction.
I’ve worked through the setup of Gpredict on Windows, and I have radio control sort of working on my Yaesu FT-991A.
By ‘sort of working’ I mean that when I engage the radio control the radio will tune to the receive (downlink) frequency, and when I select “track” the receive frequency “tracks” the doppler correction the program indicates.
What does NOT seem to happen is any required mode change setting the radio to FM, CW or whatever mode that I have selected in the program for the transponder - whatever mode the radio was in when the program takes over via CAT is where it stays unless I manually set the correct mode.
Nor does it appear that the transmit (uplink) split is created so that when the radio is keyed it transmits on the uplink frequency. Keying the radio transmits on the downlink frequency only.
Is this normal? If so then this program probably won’t work for me as I plan on actually working the birds instead of just listening to them. I can live with this if so but it would have saved me many hours of figuring out how to get to where I am now.
If the program should be appropriately setting mode and transmit/receive splits based on the GUI settings then somethings not quite right with my setup, and I can’t sort out what that might be.
Currently, gpredict only controls the frequency and in some cases PTT. The mode has to be set manually.
As for uplink/downlink control, I simply have no idea because I am not familiar with your radio. The gpredict user manual describes the available configurations and you can try to compare that to the capabilities of the radio. Clearly, it is important to select a proper configuration for the radio (half/full duplex, VFO).
KA4JWB, would you mind sharing your rigctld command line with me, as well as the interface configuration for your FT-991? I would greatly appreciate it if you could. I know that the answer is somewhere in these two. These can be bewildering to the new operator.
I did think of that, but according to the manual and the program tool tips this is a mode for a full duplex radio, and the FT-991A is a half duplex radio. I did turn off the AOS and LOS signalling though.
After getting all the moving pieces together i can say that vk4tmz’s blog post works perfectly. Even tho the rig is not full duplex the full duplex settings work since the uplink vfo can be changed while transmitting.
from the blog post and a good note to keep in mind:
Before we move on, one of the little limitation / feature lack of GPredict is when you select the different “transponder” to monitor and have GPredict track it only tracks the up and downlink frequencies. DOES NOT automatically select / change the rig modes for both RX and TX .
To overcome this I created 3 simple commands which I run as needed to changes the modes quickly:
# For Voice
rigctl.exe -m 2 -r localhost:4532 M USB 0 X LSB 0
rigctl.exe -m 2 -r localhost:4532 M FM 0 X FM 0
rigctl.exe -m 2 -r localhost:4532 M USB 0 X USB 0
# For Digital Mode (ie APRS, etc)
rigctl.exe -m 2 -r localhost:4532 M PKTUSB 0 X PKTLSB 0
rigctl.exe -m 2 -r localhost:4532 M PKTFM 0 X PKTFM 0
rigctl.exe -m 2 -r localhost:4532 M PKTUSB 0 X PKTUSB 0