I've added another GPSDO to my bench. This is a Nortel unit. Its fairly straightforward as its a Thunderbolt device. Requires 48VDC power.
Well I have had a few of these on the air for a few weeks. Phase noise is an issue . To be expected with the single chip transceiver. It's limited to about 3 watts output before spurs become an issue depending on frequency but I've been able to experiment with protocols.