Genossen, MF,
For such distances on 630m i would recommend not to go slower than
QRSS-10. Years ago i've been detected by WA3TTS. Unfortunately i can't
find the spectrogram he sent me (over the reflector) but the DFCW
signal was quite blurry. Still good readable but the permanent QSB was
clearly visible. QRB is/was about 6600 km.
73, Stefan
Am 17.10.2018 15:53, schrieb DK1IS:
Hi all,
plus 10 Hz from South America to Europe - that´s the final proof how
fast earth is spinning!
No kidding: if Marcus even heared Diego at 472995 +/- 1 Hz then it
seems I saw some other weak DX signal. Anyway, by searching a little
bit off-center on the Perseus screen I certainly not have been fallen
again for Perseus´ occasional weak mid-screen-artifact (DK7FC, DF6NM:
you know it from my former enthusiastic VLF report ;-) ) ....
73,
Tom, DK1IS
Am 17.10.2018 um 14:23 schrieb Marcus PY3CRX PY2PLL:
Hi all
I saw some faint lines on Argo and some aural copy at 472995 on
SDR-IQ (good ~1Hz).
Alejandro LU8YD have the same freq reading using Perseus.
73
Marcus
PY3CRX + PY2PLL (GG66rf)
Em 17/10/2018 06:28, DK1IS escreveu:
Am 17.10.2018 um 02:12 schrieb cx4di:
today testing in QRSS1.
73’s
cx4di
Hi Diego,
do you know the exact QRG of your last transmissions? During the night
from 20181016 to 20181017 I repeatedly saw faint traces with QSB at
473.005 kHz (+/- 1 Hz after calibration) at the Perseus SDR at DL0AO
with the 200-m-Beverage to South America. Sadly a doubtless
identification was impossible - 8 WPM CW can´t be discriminated by the
extremely narrowband technics being necessary to see these weak signals
at all.
QRSS1 won´t help really - you should try to modify your transmissions
to QRSS 20 or 30 or preferably (if possible for your TX) DFCW 30 with 2
or 3 Hz shift. The characteristic pattern of DFCW would make the
identification much more easy.
73,
Tom, DK1IS
www.qrz.com/db/dk1is
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