Hello Rik,
Some information can be found here:
http://physics.princeton.edu/pulsar/K1JT/WSPR_Announcement.TXT
In addition to the "WSPR-only" program, the WSPR mode is also available
in the new WSJT7 program which is an open source project:
http://developer.berlios.de/projects/wsjt/
WSPR decoding is somewhat more complicated than transmitting...
(understatement of the year :-) )
K1JT kindly added a message output function in an early command line
version of the WSPR program. This can be used to generate a list of
symbols to be used in a stand-alone beacon. The message consists of 162
symbols where each symbol is 0..3 corresponding to FSK tones
lowest..highest. Each symbol, or "baud", conveys 2 bits of information.
Unfortunately, the old WSPR program is no longer on K1JT's home page but
I have a copy here if you need it (WSPR v0.3 r90).
A new QSO mode has been added to the WSPR protocol (in WSJT7) but I have
no idea how it works. (who wants to have QSOs anyway... ;-) )
BTW, there is a very nice real time WSPR database at www.wsprnet.org.
Click database or map.
73 de Johan SM6LKM
----
Rik Strobbe wrote:
> interesting.
> Are the specifications of WSPR (coding scheme, shifts etc ..) somewhere
> available ?
>
> 73, Rik ON7YD - OR7T
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