Thetis HL2 2.9.0.8 RX/TX bandwidth not aligned with PS-A

[Pez]

Hello all,

I have my HL2 running in Thetis HL2 2.9.0.8 Beta1, set at RX 384000. I have noticed that when I TX with PS-A enabled, my TX signal is displayed at 2x what it really is. (The frequency scale does not update either - what it shows is incorrect). 

This does not occur in Single Cal mode. Or any other mode that I can tell.  (It stays at the same (correct) "zoom". It is like the RX is dropping back to 192000 with PS-A enabled? 

Is there a setting I have missed? Or is this a bug? 

Any advice would be greatly appreciated. 

73

RX:


TX at 2X with PS-A:

["Christoph v. Wüllen"]

The TX (and also the puresignal RX feedback) signal is *always* 192k in protocol-2.

However, this should be taken into account in the panadapter.

> <RXBW.png>
>
> TX at 2X with PS-A:

> <TXBW.png>
>
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> <RXBW.png><TXBW.png>

[Pez]

Thanks Christoph, in that case the panadapter is not re-scaling correctly in PS-A mode. Do you know how I can officially report this issue? 

FYI, it doesn't happen in Single Cal mode, so can I assume the corrections are still being applied, even though it happily remains in duplex RX at the full 384000 in Single Cal mode? 

If so, I'm probably going to stick to Single Cal mode for now. PS-A has a few gremlins  :) 

73

["Christoph v. Wüllen"]

oh, sorry for the Chaos. The Hl2 runs protocol-1, therefore both the
RX feedback and the TX DAC channel run at the common speed of the
receivers (the TX always runs at 48k).

I do not know if Thetis can do duplex with puresignal such that you see
your RX feedback signal in one panadapter and the RX signal in the other.
They should match as both refer to the same ADC.

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[Pez]

Thanks Christoph. I would be happy if the frequency scaled/updated on TX/RX to match the change in sample rate - I don't personally mind if it "zooms in" (by 2x) and corrects the frequency scale on TX if it must. Or better still, if it remembers individual (user defined) zoom settings for TX and RX modes (which I like).  

I panicked earlier because I thought my TX was 6kHz wide! (it was only 3kHz) :) 

Best 73