Hello Roelof,
OK so far. You want to say that a a CW QSO would be possible with Bob? A
CW QSO by using a 10 Hz BW CW filter? Sounds terrible i guess ;-)
For me there is no chance since i'm farer from the sea and i assume to
have more QRM here (?). Furthermore my signal is to weak, on MF. I guess
i would need another 6 dB here.
However, see attached... :-)
73, Stefan
Am 16.03.2013 19:58, schrieb Roelof Bakker:
Hello Stefan,
Last night I found this decodes from WE2XGR/6.
There are quite a few hat show an SNR > -20.
I found that a SNR of -20 is about the threshold level for aural CW in
a 10 Hz bandwidth for skilled ears!.
[...]
73,
Roelof, pa0rdt
RX: PERSEUS SDR
ANT: pa0rdt-mini-whip 5 meter up the stem of a magnolia tree
less20.png
Description: PNG image
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