rrr Stefan and Markus - thanks for the
info.
I have two instances of WSPR-X running, launched from the same
directory, one configured (manually) for WSPR-2 and the other for
-15. Not a single decode from the latter yet.
I guess as long as they run, the two instances don't interfear
(:o)
73,
Wolf DL4YHF .
Am 26.05.2015 02:19, schrieb Markus Vester:
Wolf, as far as I know the only
way to separate them in the database seems to be sorting by
frequency (which is not very useful otherwise). There is a
peculiarity in that the hh:15 and hh:45 timestamps in the
database seem to be "rectified" to even minutes (hh:16 and
hh:46) at midnight UT (just happened to G4JNT entries).
Stefan, I'm not sure about not
using -15 on MF. Even though fading is faster and deeper, the
WSPR decoder seems to cope well with it. After all WSPR-2 is
useful on HF where fading happens in seconds. The spectrogram
of Andy's transmission last night sometimes showed two deep
fades in one sequence, but it was decoded ok. It has been
argued that a very short and strong maximum might be utilized
by -2 and not by -15, and maybe there's not all of the
theoretical 9 dB gain, but I reckon on average it's not much
less.
Laurence yes your frequencies are
correct, dial 475.2 kHz, RF: 475.6 - 475.8 WSPR-2, 475.8 -
475.825 WSPR-15.
I wonder if it is possible to
run two instances of WSPRX side by side on the same machine,
one for -2 and one for -15? Or would they crash one another?
73, Markus
Sent: Tuesday, May 26, 2015 1:16 AM
Subject: Re: LF: 630M WSPR T/A
Am 25.05.2015 22:55, schrieb wolf_dl4yhf:
p.s.
is there a possibility to filter / display only WSPR-15 decodes
from the database, and how widespread is the use of that mode ?
...there have been a few MF TA tests in WSPR-15 in the early 630m
days, showing that this mode is to slow for the path on that band.
These tests have not been very extended though. But most likely
there is not a 'gain' of 9 dB over WSPR-2. I would assume that
successful detections are even less likely in that mode over the
pond.
73, Stefan
