MFJ1708B-SDR TX/RX Switch

[vecher]

All, Looks like my switch is not working correctly..

with 12 volts applied..

ANT- XCVR= Open
ANT- SDR RX= Short
XCVR-SDR RX= open

ON TX All seems OK

ANT- XCVR= Short
ANT- SDR RX= OPEN
XCVR-SDR RX= open

Saw something about J3?? I have NO Jumper installed..

I would think that in RX Mode both SDR Rx and XCVR should be connected to the ANT..

Maybe I am wrong BUT Please Advise..

Thanks

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