hi eric, hi folks,
on the attached pic you can see my portable station.
In the swr-meter there is a transverter(G3XBM-version)with modified swr-bridge for 630m.
On top in yellow there is my loading coil which is about 820uH in max by a Q from 80 ( 350uH Q 125).
On top of the loading coil you can see my antenna current meter and my antenna transformer(15ohms - 100ohms to 50 ohms).
Eric, this transverter works in split mode which means on tx the signal is mixed to 472khz and in rx it is direct.
That works perfect with the FT 817( my ODX in that configuration is abt. 1165km).
J also have a KX3 , but i can´t split over bands. ( maybe it works when i use memory?).
I hope to be qrv soon on 630m.
If you really interested in 630m please read ON7YD " antennas for 136khz "which is also good for 472khz.
wolf , dk1hw