[hpsdr] Standalone WSPR beacon

[Berndt Josef Wulf]

G'day Phil,

many thanks for your reply.

Its been a while since using WSPR on Pennylane, but remember the
transmission slowly sliding outside the transmit window using the
internal clock. It was the reason why I stopped using it at that time.
This shouldn't be a problem when using an external timing reference such
as a GPS.

A few questions:

* How do you feed date and time to Pennylane/Penelope?
* Could WSPR coexist within the standard firmware?
* Does the current code base support Hermes?
* Is source code available?

73, Berndt
VK5ABN

On Tue, 2013-03-26 at 09:07 +0800, Phil Harman wrote:
> Hi Berndt,
> 
> I did solve that issue by reading the date and time from the GPS receiver.
> I also built a standalone 2m beacon (VK6RIO) using this technique which I
> hope will go in service shortly.
> 
> One item that prevents the code from becoming more useful is that the WSPR
> data is hard coded into the FPGA. In which case you have to compile the
> code using Quartus for every callsign etc.
> 
> A better solution would be to add the WSPR data to the code stored in the
> EEPROM. We could store the data at a specific address in the EEPROM and
> merge it with the FPGA data.
> 
> So the steps would be:
> 
> 1. Modify the FPGA code to read the WSPR data from EEPROM.
> 2. Write PC code to generate the required WSPR code (already available),
> read the .rbf file and merge the files.
> 
> Nice little 'weekend' project :)
> 
> Thanks to Bill, KD5TFD, for writing the original WSPR FPGA code.
> 
> 73 Phil..VK6APH
> 
> 
> 
> 
> > ***** High Performance Software Defined Radio Discussion List *****
> >
> > G'day,
> >
> > what has become of the "Standalone WSPR Beacon" project that used the
> > Penelope/Pennylane? There was some experimental code, but did it ever
> > make it to a release? From memory, the problem was that it didn't had
> > synchronisation with an external clock, e.g. time_of_day and 1PPS, and
> > needed to be started at the beginning of an even 2min period.
> >
> > 73, Berndt
> > VK5ABN
> >
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