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Old 24-12-2018, 10:01   #1
Cumbredx
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New CNR Transmissions

CHINA. Additional DRM frequencies of China National Radio CNR
https://swldxbulgaria.blogspot.com/2...-of-china.html
(Ivo Ivanov, SWLDXBulgaria News, Dec 14-16, DX LISTENING DIGEST)
viz.:

0100-0900 on 13825 BEI 030 kW / 175 deg to EaAs Chinese DRM mode
0100-0900 on 15250 KUN 030 kW / 032 deg to EaAs Chinese DRM mode
0030-0630 on 17800 QIQ 030 kW / 225 deg to EaAs Chinese DRM mode
0630-0900 on 15735 QIQ 030 kW / 225 deg to EaAs Chinese DRM mode
0900-1200 on 9870 QIQ 030 kW / 203 deg to EaAs Chinese DRM mode

I can confirm 9870 kHz, will try for the others in the coming days.
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Old 26-12-2018, 07:15   #2
zfyoung
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Received on 15735 kHz. This test is really stretching the DRM standard to the limit: 14.56 kbps = AAC + SBR(12kHz bandwidth) + P.stereo. Very special config. indeed!
Attached Images
File Type: gif audio.GIF (81.0 KB, 82 views)
File Type: gif CNR_15735.GIF (84.2 KB, 85 views)
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Any kind of audio drop-out is worse than any kind of low quality audio: No audio, No log report.

My Rx location: GuangXi Province @ E10636′ N2355′

Last edited by zfyoung : 29-12-2018 at 01:07.
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Old 26-12-2018, 10:31   #3
tpreitzel
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Quote:
Originally Posted by zfyoung
Received on 15735 kHz. This test is really stretching the DRM standard to the limit: 14.56 kbps = AAC(12kHz bandwidth) + P.stereo. Very special config. indeed!

Yes, but an intelligent configuration for shortwave and AAC+. I'll continue sitting on the bench more until digital shortwave broadcasters get serious. I'm hopeful for WBCQ in the spring of 2019.
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Old 27-12-2018, 11:41   #4
Owdjim
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I can confirm that the 17800 kHz channel is on air and reaching NZ, but not good enough for any decoding.

Can anyone confirm these other two transmissions:

0100-0900 on 13825 BEI 030 kW / 175 deg to EaAs Chinese DRM mode
0100-0900 on 15250 KUN 030 kW / 032 deg to EaAs Chinese DRM mode

No sign of them here in NZ.

Just looking to update my online schedule database.

Cheers, Chris
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DRM receiver museum: CT Digital World Traveller, Morphy Richards 27024, Newstar DR111, Roberts MP-40, UniWave Di-Wave 100
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Old 27-12-2018, 12:52   #5
MARCEL
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Hello

This morning I have no signal of this all frequencies, was better of 6030 Khz.
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Old 27-12-2018, 23:18   #6
Digger
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Quote:
Originally Posted by Owdjim
Can anyone confirm these other two transmissions:
0100-0900 on 13825 BEI 030 kW / 175 deg to EaAs Chinese DRM mode
0100-0900 on 15250 KUN 030 kW / 032 deg to EaAs Chinese DRM mode

Haven't seen any traces yet here in central Japan either.
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Old 28-12-2018, 12:00   #7
MARCEL
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Very bad conditions of propagation, I have no signal of all frequencies.
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Mixer Platine MF9 Mhz with Dream

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Mantova Turbo 5/8 wave for 27 mhz
Long Wire 80 meter
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Old 17-01-2019, 23:34   #8
Digger
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17th Jan. 2019

Quote:
Originally Posted by Owdjim
Can anyone confirm these other two transmissions:
0100-0900 on 15250 KUN 030 kW / 032 deg to EaAs Chinese DRM mode
Cheers, Chris

I heard (a little bit) of China National Radio on 15250 kHz and logged it for 126 minutes from 0717- UTC. Poor signal but extremely low SNR. 11,64 kbps, UEP, aac, Mono. ID:2. The frequency might suffer from my 1 Gbit/s LAN RFI in the 19 mb. Max. 10,71 dB SNR and 13,60 % decoded audio.
Attached Images
File Type: png 15250-190117-0717-0900-Hatori.png (40.9 KB, 60 views)
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Last edited by Digger : 17-01-2019 at 23:36.
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Old 19-01-2019, 09:38   #9
Owdjim
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Noted traces of signal on 15250 kHz here in NZ too. Nothing noted at home, but DRM signal noted on KiwiSDRs further north in NZ. Sitll haven't seen any signals on 13825 kHz, or seen any reports of that one. Cheers, Chris.
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DRM receiver museum: CT Digital World Traveller, Morphy Richards 27024, Newstar DR111, Roberts MP-40, UniWave Di-Wave 100
My DRM webpage: http://www.owdjim.gen.nz/chris/radio/DRM/
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Old 29-03-2019, 07:56   #10
FritzWue
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A rare one:
Attached Images
File Type: png 15735_190328_0819_DK6QI.png (29.2 KB, 50 views)
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Friedrich.....DK6QI.....52N 07E
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Old 29-03-2019, 13:48   #11
Digger
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15735 kHz

From 15.12 2018, no signs in Japan (yet). And yet is still - yet...
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Old 01-04-2019, 09:09   #12
FritzWue
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I was a little late today.
After 08:50 UTC there was a digital modulated carrier on 15740.15 kHz.
Attached Images
File Type: png 15735_190401_0847_DK6QI.png (26.0 KB, 39 views)
File Type: png 15735_190401_0849_DK6QI.png (14.5 KB, 36 views)
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Friedrich.....DK6QI.....52N 07E
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