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Old 14-04-2009, 05:45   #1
K4ERO
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DRM tests from FEBC Saipan

Starting on 4/15/09 FEBC, Saipan hopes to be testing DRM on 11650 KHz at 0900 to 1000 UT. Beaming 341 degrees, (Japan, Korea, Russia, and Northern Europe) Daylight absorption will limit signals west of middle Russia, but any reports from anywhere are welcome. This is early evening Japan time. Thanks for any and all reports, via this forum and to kfbseng@febc.org. We have permission to test for three weeks. Signals may not be on every night, but we hope to be on at least 10 or more nights. Later tests to be announced towards China.

John Stanley, Visiting Engineer, FEBC, Saipan
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Old 14-04-2009, 09:43   #2
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Dear John
I duplicated your message on the Russian sites dxing.ru and radioscanner.ru
Yours faithfully,
Vladimir

Last edited by Siber : 14-04-2009 at 09:45.
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Old 15-04-2009, 05:37   #3
K4ERO
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Ready for tests on 11650 at 0900UT

All the equipment seems to be working well. We should be on as scheduled. Various modes will be tried. Thanks to all who listen and pass on the word.
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Old 15-04-2009, 09:18   #4
K4ERO
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11650 Saipan now on 0900-1000

Transmitter is behaving well.

De K4ERO, FEBC, Saipan
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Old 15-04-2009, 09:32   #5
FritzWue
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Thumbs up

Signal is coming through!
But there is AM on 11645 kHz, so too much interference
for decoding audio at my location in northwestern Germany.
Attached Images
File Type: png 11650_090415_0906_DK6QI.png (4.5 KB, 303 views)
File Type: png 11650_090415_0911_DK6QI.png (10.5 KB, 299 views)
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Friedrich.....DK6QI.....52°N 07°E
https://www.qrz.com/db/dk6qi/
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Old 15-04-2009, 10:09   #6
Mitsuru Ito
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in Japan too

hi all
also very strong interfwer signal in Japan.
And there were noises because local time was 18hrs.
But,The signal was 30dB orver s9 at IC-R75r.
if i did not change ATT e.t.c.
there were noaudio drop out.
DE JA2QDX M.Ito
Attached Images
File Type: png 11650_090415_0859_JA2QDX.png (29.5 KB, 302 views)
File Type: jpg febc.jpg (52.9 KB, 291 views)

Last edited by Mitsuru Ito : 15-04-2009 at 10:17.
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Old 15-04-2009, 10:35   #7
FritzWue
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I tried to improve the setup here, so the report ist split into two parts:
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File Type: png 11650_090415_0903_DK6QI.png (26.0 KB, 283 views)
File Type: png 11650_090415_0925_DK6QI.png (28.9 KB, 256 views)
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Friedrich.....DK6QI.....52°N 07°E
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Old 15-04-2009, 10:42   #8
K4ERO
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FEBC Saipan on 11650

Thanks for encouraging first reports. Based on request from Japan we will run Parametric Stereo tomorrow night. For FritzWue, we could try a brief test using 4.5 KHz mode on USB, if we know you are there. LSB is interfered with as your plots clearly show. Many thanks to all.
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Old 15-04-2009, 10:43   #9
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...some more screenshots.
John, I was in my home office today but most time I'm out at 11:00am here, sri.
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File Type: png 11650_090415_0932_DK6QI.png (37.0 KB, 268 views)
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Last edited by FritzWue : 15-04-2009 at 10:50.
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Old 15-04-2009, 11:10   #10
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In the middle of Russia in Irkutsk I receive the signal by telescopic whip by
Hyundai 1613+ heterodine 465KHz with not bad sound quality. Tomorrow I'll try to do the DRMcalc
Attached Images
File Type: png 11650 15.PNG (24.6 KB, 279 views)

Last edited by Siber : 15-04-2009 at 11:22.
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Old 15-04-2009, 16:09   #11
PP5AZF-Ataliba
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Parabéns pelos testes da rádio FEBC Saipan.
Gostaria de sugerir que façam testes em Parametric Stereo, modo A, 18 kbps. Estas configurações são utilizadas pela rádio CVC 17.640 Khz e resultaram em excelentes qualidade de áudio estéreo e de decodificação de sinal.
Eu acredito que poderão obter maiores informações diretamente com o engenheiro Mathias Svensson <mathias@cvclavoz.cl>

Translation portuguese > english: "google"

Congratulations for testing of radio FEBC Saipan.
I would suggest making tests in Parametric Stereo, mode A, 18 kbps. These settings are used by radio CVC 17640 kHz and resulted in excellent quality stereo audio signal and decoding.
I believe you can get more information directly with the engineer Mathias Svensson <mathias@cvclavoz.cl>
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Plataforma Brasileira do Digital Radio Mondiale
www.drm-brasil.org

ABRADIG - Associação Brasileira de Radio Digital
www.abradig.org.br

Amostras de áudio de algumas rádios DRM:
www.zandomenego.com/ataliba/drm

Youtube channel:
www.youtube.com/atalibazf
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Old 15-04-2009, 23:20   #12
K4ERO
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DRM mode for 4/16/09 FEBC Siapan

Tonight at 0900-1000UT 11650 we will use Mode B, 10 KHz, 4/4/64 QAM, EEP, high, AAC 24 Ks, parametric stereo. Should sound better than tests on Wednesday.
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Old 16-04-2009, 09:07   #13
drmdab
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Nothing here...
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RX: Elad FDM-S1
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Old 16-04-2009, 09:36   #14
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April 16

Hi all,

3 AM carriers only....
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Regards, John.
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Old 16-04-2009, 10:01   #15
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About nothing too...
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