[hpsdr] HPSDR / PowerSDR hardware selection

[Michael White]

Hi Bill

  Everything is possible given enough time and money.:-)., bit of a  
silly question really. Hope the idea at least goes onto the wishlist.

I am not sure if Mercury will eliminate the softrock/qsd for a good  
while. One really useful and cost effective application for softrock  
is tapping the IF of older receivers to create a panadaptor and  
improve the filters. Certainly the HPSDR users have made a commitment  
to QSD and see the O/J as a kind of radio sound card.

How people end up using the TX/RX combinations may turn out to be a  
surprise and end up providing new contributions to SDR, so the best  
approach in my mind is to allow flexibility (given enough time and  
money of course) and not guess how people will try to use it.

I don't see the clocks need to be coherent or continuous as between TX  
and RX because most people (except keen CW contesting perhaps) will be  
happy with half duplex and can tolerate a turn around time.

Thanks for your efforts so far to support the HPSDR.

73
Michael

On 22 May 2008, at 06:08, Bill Tracey wrote:

> Would it be possible -- yes.  The code is not really setup for it at  
> the moment -- one would have to take a crawl thru it looking for all  
> the (if CurrentHardware == ... ) clauses and changing them to  ( if  
> CurrentTXHardware == ...) and ( if CurrentRXHardware == ... ) .     
> There's also potentially a bit of work if the xmitter and receiver  
> are in different clock domains - at the moment I don't think  
> PowerSDR has code to deal well with moving samples from one clock  
> domain to another.
>
> I wonder how transient a requirement this type of setup is?  Once  
> Mercury emerges how much interest will there be in running with  
> something other than Mercury+Penelope as a transceiver pair?  I  
> suspect there may be some desire to run Mercury as an aux receiver  
> with an SDR 1000 or Flex 5000, but not sure how much long term  
> interest there is in running arbitrary combinations of recv and xmit  
> hardware.
>
> Something I will keep in mind, but honestly no commitment for it at  
> this time - just have too many other things that I need to work on  
> at the moment.
>
> Regards,
>
> Bill (kd5tfd)
>
>
> At 04:45 PM 5/21/2008, Michael White wrote:
>> ***** High Performance Software Defined Radio Discussion List *****
>>
>>> Hi
>>
>> Would it be possible to split the hardware selection under PowerSDR
>> into two groups, ie RX and TX.?
>>
>> As the hardware options are growing the possible combinations seem to
>> be getting beyond the hardware selection system.
>>
>> e.g RX -
>> Softrock via OZY / Janus
>> Softrock via Soundcard
>> Mercury
>> SDR1000
>> SDR5000
>>
>> Tx
>>
>> Penelope.
>> Softrock via Soundcard.
>> SDR1000
>> SDR5000
>>
>> By splitting these groups all the viable combinations could be  
>> catered
>> for
>>
>> In my case I need RX Softrock via O/J with Tx via Penny. But that  
>> will
>> change as experimentation advances. Mercury etc.
>>
>> Only a thought. saves fussing with the hardware setup when switching
>> from TX to RX.
>>
>> Regards
>> Michael G3WOE
>
>


 1211441248.0