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To: [email protected]
Subject: LF: WSPR from LU1DOW
From: Marcus+PY3CRX+2F+PY2PLL <[email protected]>
Date: Sun, 21 Oct 2018 13:38:22 +0000
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Good signals!




Assunto: Re: LF: Re: 630m band from Sud America
De: [email protected]
Enviado em: 18 de outubro de 2018 01:18
Para: [email protected]

So there is, better tonight ...

Attached one Argo screenshot. Receiver at 472995 @ CW tone = 750 Hz.


Marcus PY3PLL + PY3CRX

Em 17/10/2018 10:53, DK1IS escreveu:
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 ;-) ) ....

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.



PY3CRX + PY2PLL (GG66rf)

Em 17/10/2018 06:28, DK1IS escreveu:
Am 17.10.2018 um 02:12 schrieb cx4di:
today testing in QRSS1.

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.

Tom, DK1IS

Attachment: lu1dow_wspr.png
Description: PNG image

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