[hpsdr] Need help on deciding what exactly to order

[pvharman at arach.net.au]

Hi Joe,

I'm presently working in the Penelope exciter project so may be able to answer 
some of your questions. 

What I am trying to do is enable as many options as possible. For example, 
Penelope has her own microphone ADC so a basic transmitter could consist of a 
Penelope board and an Ozy board.  However, if you already have a Janus board, 
and your microphone is already plugged into that then it would be inconvenient 
to have to swap it to Penelope. So, under software control, you will be able to 
select which card you want to use for your microphone input. 

Similarly, Mercury will have a Line Out and Headphones output. Hence a minimal 
receiver would be a Mercury board and an Ozy board. But if you already have 
your audio routed via a Janus board it would be nice to select that for the 
receive audio.  Again I plan to have that as a software option. 

Most of this week has been spent making subtle changes to signals over the 
Atlas bus so we can keep this flexibility. So far this looks workable but I 
have no idea what other cards/designers etc will want to hook onto the Atlas 
bus in the future. At this stage all I can do is confirm the intent to keep the 
configuration as flexible as possible.

Hope that helps. 

73's Phil...VK6APH 





Quoting Joe - AB1DO <ab1do at optonline.net>:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi Lyle,
> 
> I was afraid you were going to say that ;-)
> 
> Thanks
> 73 de Joe - AB1DO
> 
> ----- Original Message ----- 
> From: "Lyle Johnson" <kk7p at wavecable.com>
> To: "Joe - AB1DO" <ab1do at optonline.net>
> Cc: "HPSDR List" <hpsdr at hpsdr.org>
> Sent: Wednesday, February 28, 2007 11:01
> Subject: Re: [hpsdr] Need help on deciding what exactly to order
> 
> 
> >> Stated alternatively, can I use my HPSDR (Ozy, Mercury, Penelope, ...) 
> >> without removing Janus from Atlas? What I'm trying to assess here is 
> >> whether it is just a matter of loading the correct software into Ozy (and
> 
> >> other cards as required) for the desired functionality, or will the 
> >> various (unexpected) signals on the Atlas bus interfer?
> >
> > I think the most accurate answer is, "Probably."
> >
> > It should be possible to have multiple boards plugged into the Atlas bus 
> > and not have all of them active.  But since the other boards don't exist 
> > yet  - at least, not in a form other than a prototype -- there is no way 
> > to be certain that all of the designs will be successful in this regard.
> >
> > 73,
> >
> > Lyle KK7P
> > 
> 
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