[hpsdr] Mercury - Extended Frequency Range above 65MHz

[Gerd Loch]

btw that worked in earlier version of PowerSDR when you changed the band to
VHF or something similar but is now not working any more.

Gerd, DJ8AY


-----Original Message-----
From: Gerd Loch [mailto:g.loch at nt-electronics.de] 
Sent: Wednesday, February 11, 2009 8:23 PM
To: 'Kirk Weedman'
Cc: 'hpsdr at lists.hpsdr.org'
Subject: RE: [hpsdr] Mercury - Extended Frequency Range above 65MHz

I have the new design and only wanted to be able to change the frequency in
the PowerSDR console above 65 MHz "IN THE POWERSDR CONSOLE" (that's what I
forgot to add)


73, Gerd
DJ8AY





-----Original Message-----
From: Kirk Weedman [mailto:kirk at hdlexpress.com] 
Sent: Wednesday, February 11, 2009 6:36 PM
To: g.loch at nt-electronics.de
Subject: Re: [hpsdr] Mercury - Extended Frequency Range above 65MHz

A new design with a faster sampling clock, faster ADC, faster FPGA 
possibly, etcc..  Since sampling is based on a 122.288Mhz frequency you 
can only get frequencies up to half that speed (Nyquist thereom).  Not 
sure why someone has said 65Mhz since its actually only 122.288/2 Mhz.

Gerd Loch wrote:
> ***** High Performance Software Defined Radio Discussion List *****
>
> I have running Mercury-EU with a sampling frequency of 184,32MHz and want
to
> use the frequency range up to 92 MHz. Now the upper limit in PowerSDR is
set
> to 65MHz.
>
> What is to be done to extend the upper frequency limit to something higher
> than 65 MHz?
>
> Gerd, DJ8AY
>
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