LUSAT-1 (LO-19) CW Beacon on 437.125 KHz quit transmiting on Dec-2012 after 23 years of operation, only a very weak carrier from local osc could be copied.
Recent reports state that LUSAT was again heard, today we received a regular signal compatible with LUSAT on 437.125 +/- Doppler in two passes.
By the strong level and QRG of the signal it corresponds to LUSAT.
Modulation is CW without a morse logic, just some dots, regular spaces and sometime a dash, no information is decoded, not always the same sequence or message.
Waterfall at http://amsat.org.ar/lusatsdr.jpg Audio at http://amsat.org.ar/lusat2013.mp3
Any further heard or reports appreciated.
Amsat Argentina lu7aa@yahoo.com www.amsat.org.ar
Hi, Very strong signal as described here in Copenhagen. AOS 1024 UTC max elevation 25 degrees. 73 OZ1MY/Ib
-----Oprindelig meddelelse----- Fra: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] På vegne af Amsat Argentina Sendt: 09 June 2013 02:01 Til: amsat-bb@amsat.org Emne: [amsat-bb] LUSAT-1 Heard
LUSAT-1 (LO-19) CW Beacon on 437.125 KHz quit transmiting on Dec-2012 after 23 years of operation, only a very weak carrier from local osc could be copied.
Recent reports state that LUSAT was again heard, today we received a regular signal compatible with LUSAT on 437.125 +/- Doppler in two passes.
By the strong level and QRG of the signal it corresponds to LUSAT.
Modulation is CW without a morse logic, just some dots, regular spaces and sometime a dash, no information is decoded, not always the same sequence or message.
Waterfall at http://amsat.org.ar/lusatsdr.jpg Audio at http://amsat.org.ar/lusat2013.mp3
Any further heard or reports appreciated.
Amsat Argentina lu7aa@yahoo.com www.amsat.org.ar _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
Hello my friends from AMSAT-Argentina !
Your bird was heard here in the North of France, very very strong signal, the sort you received with dash and dots, strong especially according to the conditions : ground plane antenna in the attic, AM receiver and 456,9 kHz transmitter poorly hacked together to receive CW, GaAsFET preamp.
Orbit nr 22133, acquisition at 1202 UTC, lost at 1215 UTC (elev. then was about 4 deg.). The max elevations was around 42 deg.
I recorded audio and spectrogram, I send you both later.
Best 73 !
Jean-Pierre/F5YG
... conditions : ground plane antenna in the attic, AM receiver and 456,9 kHz transmitter poorly hacked together to receive CW, GaAsFET preamp.
Orbit nr 22133, acquisition at 1202 UTC, lost at 1215 UTC (elev. then was about 4 deg.). The max elevations was around 42 deg. ...
About 30 sec of the 13 min audio file : http://f5yg.pagesperso-orange.fr/temp/LUSAT_(LO-19)_orb22133_09jun2013.mp3
The spectrograms : http://f5yg.pagesperso-orange.fr/temp/LUSAT_(LO-19)_orb22133_09jun2013.zip
73 !
Jean-Pierre/F5YG
-- Powered by Linux (Slackware 10.0 - kernel 2.4.26)
participants (3)
-
Amsat Argentina -
Ib Christoffersen -
Jean-Pierre Godet