Okay, i don't have a circuit diagram, but a few photos of my ground station.
0. receiver with power cables inside
1. receiver with rssi buffer inside
2. complete ground station
3. power box opened with two regs for each receiver. (diversity power
4. close up of one reg
Input: diode - inductor - with cap on reg
output: 2 caps, one electrolyte cap and one ceramic cap.