I made another pass at LEK's QRSS-CW signal last night and managed to
get some excellent data for analysis.
I set the machine to record from 5:15 am thru 7:00 am local (EST) time.
After I crunched the raw data, LEK's CW ident was clearly audible in
there for most of that time. Conditions seemed to be very good last
night, weather was clear and crisp (overnight low here was minus 28C,
about 18 degrees below zero F, and that would have occurred pretty much
right while I was recording).
The raw data file is a little over 100 Mb, so I extracted a representative
sample which crunches down to about the same signal quality I posted last
time.
The raw data was sampled at 8200 samples per second, 16-bit signed binary.
There is a file called SLIVER02.AUD which has 665640 samples of this data,
about 81 seconds of audio. If you CRUNCH it you can recover one complete
"LEK " ident sequence that sounds fine.
If you're interested you can download the file (about 1 Mb) from:
http://cafe.rapidus.net/bill1/sliver02.zip
Bill VE2IQ
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