[hpsdr] PureSignal for HPSDR/Penelope/Mercury

[laurence at nicklebyhouse.co.uk]

I don't think it is possible. The reason is:

Puresignal uses an ADC to digitise the amplified output; that bit is
possible with just one Mercury. It also needs a downconverted *digital*
sample stream from the upconverted digital TX signal, which would need the
TX board to fee out a downconverted signal - and as far as I know that isn't
possible.

 

Regards,

Laurence Barker
laurence at nicklebyhouse.co.uk

-----Original Message-----
From: Hpsdr <hpsdr-bounces at lists.openhpsdr.org> On Behalf Of George Byrkit
Sent: Sunday, May 28, 2023 12:45 PM
To: hpsdr at lists.openhpsdr.org
Subject: Re: [hpsdr] PureSignal for HPSDR/Penelope/Mercury

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

While it might be technically possible, there are lots of hurdles to
overcome, and PureSignal was not designed/implemented to work on the Mercury
receiver.

1) PureSignal needs an additional phase/clock-synchronous receiver channel
to get the feedback to correct the signal.  Mercury only has ONE receiver
channel.  You'd have to hand-stack multiple Mercury boards to begin with...

2) PureSignal needs more FPGA memory space for code and everything.  A
Cyclone III doesn't really have that available for you.

3) perhaps bus timing and all are also in the way.

You should reach out to Dr Warren Pratt, NR0V, who implemented PureSignal.

73,
George Byrkit, K9TRV

-----Original Message-----
From: Hpsdr <hpsdr-bounces at lists.openhpsdr.org> On Behalf Of Michael Carey
Sent: Sunday, May 28, 2023 4:57 AM
To: hpsdr at lists.openhpsdr.org
Subject: [hpsdr] PureSignal for HPSDR/Penelope/Mercury

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


_______________________________________________
HPSDR Discussion List
To post msg: hpsdr at openhpsdr.org
Subscription help:
http://lists.openhpsdr.org/listinfo.cgi/hpsdr-openhpsdr.org
HPSDR web page: http://openhpsdr.org
Archives: http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/