[hpsdr] Alex Board XV Issue

[Glenn Elmore]

This may be entirely apples and oranges but ...

I have an Angelia board that I use with a TAPR-built Alex/tx board and 
an Alex/rx board that I've partially loaded - enough to get all the 
antenna switching features and a couple of HPFs. these are mounted in 
the Hammond Eurocard extrusion and in a larger chassis which also 
contains a Pennywhistle 10W PA. It all seems to be working pretty well.

I'm still learning things about PowerSDRmrx as well as the hardware but 
thus far, I also have been unable to find any combination of settings 
that causes the XVRT rx relay to close.  Everything else works and makes 
sense. On the TX side, A1,A2,A3 all work as expected.  On the RX side, 
I'm able to either select or bypass the HPF-of-choice while using one of 
the TX-Ax inputs.  Furthermore, if under Ant/Filters I ask for EXT1 or 
EXT2, the receiver gets a separate input (though I actually am supplied 
with the Alex/rx input marked RX2 when I select EXT1 and the one marked 
RX1 when I select EXT2, it looks like the labeling in PowerSDR columns 
is swapped). But, under no combination of EXT1,EXT2,XVRT settings  that 
I can find, even when accompanied by changes in setting under the 
transverter tab with a transverted band selected or not, can I ever get 
the Alex/RX BNC input marked XVRT to connect.

The hardware is bolted together at present so I can't easily examine the 
drive line but I doubt that it is stuck to the rail. The symptom sounds 
very similar if not identical to yours.

I think I've also tried all the above with both 100D and 200D as 
selected models.

All the above may be subject to cockpit error.

Glenn n6gn



> Hello,
>
> I have designed and built an Alex clone with all the Alex features on a
> single board to match
> the size of the Hermes.
>
> On my checkout of the board, I noticed that XVTR RX relay is not activating.
> Bit 0 of  U3 is high and never
> goes low.  All the other relays work.
>
> Is this a known problem?
>
> All the HP, LP, antenna relays are functioning.
>
> ???
>
> 73's
>
> Glen K4KV
>