Topband: Problems with my DX Engineering RTR-1 receive antenna switch

[Mark Lunday]

Good afternoon, All

I relocated my shack in my house for the summer Stew (lower noise location),
but ran out of time to hook up the Hi-Z receive antenna relay and control
box.

I finally got around to hooking up the receive interface this weekend.  I
had this receive interface working perfectly with my Flex 3000 and THP 1.2
KFX through the winter on 160.  Now I cannot get the RTR-1 to work properly.
As in no signal at all, almost like a disconnected antenna.

I triple checked the connections on the back, but still nothing.  Receive
antenna hooked to RECEIVE ANTENNA IN, main antenna hooked to MAIN ANT IN,
radio connected to RADIO.

Additional troubleshooting:

1. Is there a signal coming from the receive antenna?  Yes, I connected the
receive antenna directly to Flex 3000 and I can hear strong signals on the
receive antenna.

2. Is there power to the RTR-1?  Yes, I tried wall wart and 13.8 VDC supply.
No change.

3. Is the TX relay in the RTR-1 working properly?  Yes, I have it hooked up
with the amplifier included.  When I transmit from the Flex 3000, the amp
comes on and the RTR-1 disables the receive antenna (exactly as it should).

4. Does the RX/MAIN switch work on the RTR-1?  Yes, when I switch to MAIN I
can hear the main antenna input.  But I can't hear any signals when I switch
to RECEIVE antenna.

So I am stuck.  Basically, it seems like the signal is not getting to the
radio from the receive antenna through the RTR-1.

Somehow I have this sneaky feeling that the problem is between the chair and
the keyboard.  This was simple to hook up last time, and it worked
flawlessly.  Me thinks I did something wrong, but not sure where.  Any
suggestions appreciated.

Mark Lunday
WD4ELG