[hpsdr] Alex Board XV Issue

[Tom McDermott]

Hi Glen - I just tried this with gnuradio HermesNB software and the Rx Xvtr
works correctly.
Am using Ver 3.1 of the Hermes FPGA code.

-- Tom, N5EG


On Mon, Jun 8, 2015 at 4:42 PM, Glenn Elmore <n6gn at sonic.net> wrote:

> ***** High Performance Software Defined Radio Discussion List *****
>
> 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
>>
>>
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