View Full Version : DRM transmissions to Brazil from TDF Montsinery
There will be DRM transmissions from Montsinery (French Guiana) to Brazil:
Friday 15 May to Friday 22 May 2009:
15740 kHz: 12.00 to 17.00 UTC,
17875 kHz: 17.00 to 21.00 UTC,
15740 kHz: 21.00 to 23.00 UTC.
Saturday 23 May 2009:
15740 kHz: 12.00 to 17.00 UTC,
17875 kHz: 17.00 to 18.00 UTC.
all transmissions using this configuration:
DRM = B mode,
Bandwidth = 10 kHz
MSC = 64 QAM
CR=0,6
Audio encoding = AAC+SBR
Power = 150 kW
Programme will be RFI in French, Spanish and Portuguese.
Listeners from Brazil or from anywhere else in the world please post results here.
Thanks,
Simone
PP5AZF-Ataliba
13-05-2009, 18:16
I wish there were some equipment of DRM receivers in Congress in Brasilia during the TDF transmissions of radio and other radios.
Please visit the address below for more information on the Congress.
Eu gostaria que existissem alguns equipamentos receptores de DRM neste congresso de Brasília durante as transmissões da rádio TDF e outras radios.
Por favor, acesse o endereço abaixo para obter maiores informações sobre o Congresso.
Congress: www.abert.org.br/25
http://www.drmrx.org/forum/showpost.php?p=55547&postcount=25
PP5AZF-Ataliba
15-05-2009, 13:20
(12:00-17:00):D
94,22% Decod Audio
Received photos (MM)
Houveram algumas falhas na transmissão, por isso caiu o índice de decodificação. Mas na maior parte do tempo houve 100% de decodificação de áudio.
"Google"
There were some flaws in the transmission, so the index fell for decoding. But most of the time there was 100% of the audio decoding.
FritzWue
15-05-2009, 18:09
Signal was visible here, even some audio! :)
I tried in the car at 12 UTC, but no reception, probably too early.
A weak signal here, no audio decoding.
Simone
FritzWue
15-05-2009, 21:12
If they are really using the right antenna that should be a hammer signal into Brazil! :D
Zipped mp3 48kbps mono audio sample attached.
FritzWue
15-05-2009, 21:17
Some more screenshots:
Réception à Paris.
A noter indication d'un programme en anglais pour une diffusion en portugais.
Daniel
PP5AZF-Ataliba
16-05-2009, 00:05
Decoded audio 98,29% (17:37-21:00)
PP5AZF-Ataliba
16-05-2009, 00:11
Decoded audio 100% (21:05-21:48)
PP5AZF-Ataliba
16-05-2009, 00:25
Translation portuguese > english: google
Aqui em Sete Lagoas MG, chega estourando, S9+30 db, e mais de 30 dB de SNR em RF, o dia todo ! 17,00 kbps EEP AAC+ Mono. Estão transmitindo as Radio Nacional do Rio e de Brasilia, Radio MEC e Extra FM.
F A N T A S T I C O !!!
Imagens recebidas em ondas curtas, simultaneamente com o sinal de audio digital, da TDF ! Vejam aqui:
http://www.qsl.net/py4zbz/hamdream/DRMtdf.htm
PY4ZBZ - 73 de Roland.
Here in Sete Lagoas MG, It's too strong, S9 +30 db, and over 30 dB of SNR in RF, all day! 17.00 kbps EEP AAC + Mono. Are passing the Radio Nacional in Rio and Brasilia, MEC and Radio Extra FM.
F A N T A S T I C!
Images received on short wave, while the digital audio signal, the TDF! Look here:
http://www.qsl.net/py4zbz/hamdream/DRMtdf.htm
Que perfeição, para essa largura de banda!
73, De Marco, PY2WM
Very well with such wide-band!
MOstly a weak signal here, best time with some decoded audio at 2115- 2140 on 15740 kHz. Seemed language information in the SDC was set to English for all transmissions.
Simone
PP5AZF-Ataliba
16-05-2009, 13:15
Excellent signal :)
Decoded audio 99,76% (12:31-16:58h):D
The transmission started starting from 12:31h.
mitajohn
16-05-2009, 15:05
Hi all,
The only trace I got so far is attached.
TDF DRM received in Sete Lagos MG Brasil 100% audio during 2 hours !
Multimidia pictures from TDF Montsinery
PP5AZF-Ataliba
16-05-2009, 20:08
Decoded audio 97,51% (16:58-20:58):)
Batman and son.... :p
PS: PY4ZBZ - please get the Azimuth fix from www.... sorry...
Brendan1
16-05-2009, 23:00
Not very good here, nothing recorded at all for the first 15740 transmission, only some very small 1dB spikes on 17875. The last transmission was the best here.
As I am off the back of the beam, I did not expect to receive much here, and my log for the day reflects the distance and off-pattern.
From SETE LAGOAS MG BRASIL
From SETE LAGOAS MG BRASIL
PP5AZF-Ataliba
17-05-2009, 02:24
Decoded audio 100% (21:03-22:00).:rolleyes:
Results of the last 2 hours, 2100- 2200 was the best here of all transmissions.
Simone
Two more multimidia pctures from TDF Montsinery
PP5AZF-Ataliba
17-05-2009, 15:18
Decoded audio 97,03% (12:32-16:58)
Are there problems with the TX now on 17875 kHz ?? Seems to be going on and off the air?
FritzWue
17-05-2009, 20:01
Yes, the same here at 18:50 UTC on 17875 kHz, signal on and off within seconds.
Zipped usb mp3 audio attached:
Hi all.
Very low signal only short log.
PP5AZF-Ataliba
17-05-2009, 22:18
Problems DRM modulation between 17:04 and 20:14 hours.:confused:
Decoded audio 100% (20:15 e 20:54).:D
PP5AZF-Ataliba
18-05-2009, 00:12
Sem transmissão na maior parte do tempo.
Without transmission in most of the time.
PP5AZF-Ataliba
18-05-2009, 15:48
Decoded audio 99,99% (13:11-16:13):p
FAC CRC 100%
Errors:
Sync: 0
FAC: 0
MSC: 2
More than 2 hours @ 100 % !
And a new multimedia picture !
Not much here at the back of the lobe...
PP5AZF-Ataliba
19-05-2009, 01:50
Decoded audio 90,77% (17:00 - 20:00)
Some audio again last night.
Simone
The transmitter was turned off 3 times...
PP5AZF-Ataliba
20-05-2009, 01:05
Decoded audio 97,80% (12:04-16:58)
PP5AZF-Ataliba
20-05-2009, 01:09
Decode audio 29,40% (20:59-22:55)
PP5AZF-Ataliba
20-05-2009, 16:12
Decoded audio 97,67% (12:02-15:02)
PP5AZF-Ataliba
21-05-2009, 17:11
Decoded audio 98,81% (12:03-16:01)
Best time here was again 2100-2200.
Simone
Some audio and slides received last night.
Simone
PP5AZF-Ataliba
22-05-2009, 14:11
Excellent signal but no audio modulation. (12:02-14:31):confused:
Always the same strong signal S9+20 dB...
PP5AZF-Ataliba
23-05-2009, 01:11
Decoded audio 95,17% (17:15-18:09)
PP5AZF-Ataliba
23-05-2009, 01:19
Decoded audio 100% (21:07-21:44)
After 21:44 pm the spread collapsed, falling to zero.
PP5AZF-Ataliba
25-05-2009, 04:08
Decoded audio 98,65% (17:00-17:58)
PP5AZF-Ataliba
09-12-2009, 22:26
TDF 17,875 khz in southern Brazil
At 14:53 SDC and MSC vectors switched off ! Only FAC symbols...
PP5AZF-Ataliba
10-12-2009, 23:29
13:00-21:45h
PP5AZF-Ataliba
11-12-2009, 19:23
CVC 17.860Khz and TDF 17.875 Khz.
As duas emissoras transmitindo ao mesmo tempo, com afastamento de 5 khz uma da outra. Espetacular!The two stations transmitting at the same time, with removal of 5 kHz apart. Spectacular!.
FYI, according to TDF DRM transmissions on 17875 kHz will be performed from Montsinery (French Guiana) at 1300 to 2145 UTC towards Brazil from Tuesday 8 December to Thursday 17 December included.
Simone
PP5AZF-Ataliba
12-12-2009, 01:35
Variable propagation.
PP5AZF-Ataliba
12-12-2009, 22:10
16:40-18:00h - Good Signal!
RafaelColDRM
13-12-2009, 14:31
Very good signal this local morning with promos to Radio Nacional da Amazonia and Radio Extra
PP5AZF-Ataliba
13-12-2009, 22:05
(13:00-21:45h)
Telspace
13-12-2009, 22:19
2 previous days logs.
Telspace
13-12-2009, 22:21
Today's log
Telspace
14-12-2009, 21:51
Today's log. Almost perfect...
TDF used better antenna ?
Denis
PP5AZF-Ataliba
14-12-2009, 22:16
13:00-21:45h
Telspace
15-12-2009, 14:07
Today 14:00 UTC.
SNR average is > 20.0 dB, but lots of decoding problems.
Complete loss of SYNC + Data + no audio.
Very strange.
99,57% decoded audio in Sete Lagoas, Brasil, 2860 km from Montsinery !
SNR some times over 30 dB !
PP5AZF-Ataliba
15-12-2009, 23:46
13:00-21:45h
Telspace
16-12-2009, 21:51
Today's log
PP5AZF-Ataliba
16-12-2009, 22:22
Good results (14:50-21:45h)
PP5AZF-Ataliba
17-12-2009, 22:40
13:00-21:45h
PP5AZF-Ataliba
18-12-2009, 22:09
Excellent!
Decoded audio 99,64% (17:08-21:45h):D
PP5AZF-Ataliba
19-12-2009, 22:32
LOGs Radios TDF (Guiana) e CVC (Chile):
16:00-18:00h - TDF 17.875 khz
18:00-20:00h - CVC 17.860 khz
19:14-21:45h - TDF 17.875 khz
PP5AZF-Ataliba
20-12-2009, 21:56
LOGs Radios TDF (Guiana) e CVC (Chile):
13:00-19:00h - TDF 17.875 khz
19:00-20:00h - CVC 17.860 khz
20:00-21:45h - TDF 17.875 khz
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