Hi Roland
First, I made a typo in my email. It should be wspr-64 .
Markus (DF6NM) sent me this text some time ago:
"WSPR 64 can be generated and received with the current setup. You would
only have to change decimation factor from /dec=2048 to 4096, and adapt
the arguments in the waitraster commands (repeat period and leadtimes)
to full hour frames (3600 instead of 1800, etc). "
If I have not completely misunderstood Markus, I think here is the right
parameters:
For TX :
del audio1.dat
start sndoutp1.exe /sr=48000 /dec=4096 /fc=660 /fn=audio1.dat /gain=1
:loop
waitraster 3600 20
copy wspr.dat audio1.dat
sleep 5
goto loop
I will use this for RX:
del audio.tmp
del audio2.dat
start sndoutpt.exe /sr=48000 /fc=1500 /dec=128 /fn=audio2.dat
start sndinput.exe /sr=48000 /fc=1500 /dec=4096 /maxsize=200k
waitraster 3600 -24
del audio.dat
:loop
waitraster 3600 -24
del audio.dat
waitraster -120 -1.5
copy audio.dat audio2.dat
goto loop
NB! I am using fc=1500 on in- and output, but you can use your own
settings.
LA5VNA Steinar
loc:JO59jq
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Den 13.10.2012 16:25, skrev Roland Bruestle:
Hello Steinar,
I can do it. I will start with 2W on the PA according 10mW ERP on
474.86kHz.
I send you my parameters. Pleas check it.
How exact has the frequency to be? within ± 3Hz?
Roland DL3NDR
PS: I still would like to make a wspr-60 experiment trying to receive
from a transmitter with reduced power, but then some of you have to do
the TXing..
LA5VNA Steinar
loc:jo59jq
