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- Subject: QRSS
- From: Leif Asbrink <leif.asbrink@xxxxxxxxxxxxxxxxxxxx
- Date: Wed, 23 Jul 2003 16:09:41 +0200
I have started to look a little at qrss signals.
The interference situation is quite different to
what I am used to;)
Before actually writing any code I have run the
present algorithms in different ways to collect
information about the interference situation.
I will upload some pages showing the details of
the QRM situation on 137 kHz June 17 2003 local
midnight. The dominating problem seems to be splatter
from modulated commercial transmitters but impulse
noise and noise bursts also give significant contributions.
The pages will be linked to from:
The first page that shows the effect of fft size is
already uploaded. It gives waterfall graphs with fft
sizes from 16384 to 4194304.
Leif / SM5BSZ