[hpsdr] Help needed re. integrating an SDR1000 PA

[Phil Harman]

Hi Paul,

Thanks for your question.  The FWD and REF power inputs on Penny are
intended to be used with a future PA so are presently not configured.

What you could do is connect your FWD power detector output to R16 (after
removing R14) via a suitable attenuator.  This would then display your
forward power on PowerSDR.

A future Penny code update will accept FWD and REV power inputs from an
external PA via J6 or P4 and calculate SWR etc.

73 Phil...VK6APH






> ***** High Performance Software Defined Radio Discussion List *****
>
> Hi everyone,
>
> I'm gearing up to integrate a PA from a retired FLEX SDR1000 and have a
> question about the SWR bridge that it contains. I'm fine with integrating
> the LPF, T/R switch and bias control and wondered if there is a way to
> utilise the forward and reverse power readings.
>
> I am using a PIC microcontroller to handle a few things, like T/R
> sequencing
> and some band decoding to switch the relevant LPF and BPF into circuit, so
> I
> already have something that can read the forward and reverse power
> measurement from the A/D on the PA. The question is how do I get that
> information back into PowerSDR? Clearly is a connector on Penny for this
> but
> what range is it expecting and does PowerSDR use it?
>
> Any help / advice welcome.
>
> Regards,
> Paul M1PAF
>
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