My current setup to operate ES'hail & QO-100.
Transceiver
WIFI amplifier with small rf amplifier in line. Homemade Bias-T for the LNB. The cable from the LimeSDRmini to the amp & Bias-T are cheap Chinese patch cables
The cable from the power amplifier to the antenna is Aircell7 from SSB-Elektronik. The cable from the LNB to the Bias-T is a high quality 75Ohm TV cable.
For DC power connections I'm using the WAGO clamps 222-415 - easy to attach and remove.
Antenna
Steel 80cm offset dish from eBay on a very sturdy LIDL bike repair stand -Thanks Ewald, DK2DB for this hint!
PE1CKK POTY with DIAVOLO LNB from REICHELT
Yes I know, the lens has still 5mm to travel ;-)
Software
All is driven by SDRConsole in V3.09 from G4ELI running on a Lenovo Thinkpad E590
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This setup runs completely on 12VDC - for the notebook I have a small DC//DC converter :-)
Frequency stability
To overcome the instability of SDRConsole & LimeSDRmini I'm using a cheap USB-Headset with a microphone mute button.
I'm running the limeSDRmini in FULL-DUPLEX mode and switch SDRConsole to constant TX. When I mute the microphone in the headset - no RF is emitted.
To switch from RX to TX I simply unmute the microphone the the switch at the headset. The only drawback is, that due to the full-duplex mode, you hear yourself with a delay of abt. 1s - you have to handle yourself.