[hpsdr] Looking for guidance

[John Melton]

I think the confusion is the misinterpretation of my statement that the
data to the hardware contained I/Q samples for Penelope and "audio data"
for Mercury.  

-- John g0orx/n6lyt

On Thu, 2010-11-11 at 09:07 +0800, Phil Harman wrote:
> Hi Erik,
> 
> >
> > I'm recently getting into this too, and one of the reasons I joined is so
> > that I would not have to hear transmitted signal be described as "audio
> > data".  I've already been told that the transmit bandwidth using Ozy is
> > ~150
> > KHz, will Metis permit a wider signal capability?
> 
> I'm not sure I totally understand your question.  The data rate of the I
> and Q signals from the PC to Ozy/Magister/Metis is currently 48ksps.  That
> means the the maximum audio signal bandwidth can be 24kHz.
> 
> By altering the parameters of the interpolating filters on Penelope you
> can increase the bandwidth of the transmitted signal. From memory the DUC
> has a 1dB point at 5kHz.
> 
> You can increase the data rate up to the limits of the hardware (i.e. USB2
> or Gigabit), its just a S.M.O.P.  (Simple Mater Of Programming).
> 
> Does that answer your question?
> 
> 73 Phil...VK6APH
> 
> 
> 



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