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DRM - Reception in New Zealand - 2003
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Fri, 24 Mar 2017 

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DRM™ - Digital Radio Mondiale - Reception in New Zealand

Reception Results from 2003

DRM™ Reception at Wellington, New Zealand
Date
(year/month/day)
Time
UTC
Frequency
kHz
Broadcast Details Screen/Graph Audio Solar Indices
SF/A/K
Log File
2003/12/17 08:48 15440 DW Radio, Sines. Just a couple minutes of good reception before being blocked by China Radio. 20.9 kbps audio, plus news headlines using the text stream. Real mp3 106/13/3 view
2003/12/16 09:45 17700 DW Radio, Sines. My 1st reception using V2 of DRM Software Radio. Classical music & news - good reception. Real mp3 101/27/3 view
2003/12/15 00:00   On Monday December 15 the DRM specification changed. This is probably the last chance to incorporate advances in audio coding techniques before the mass production of chips starts and the system becomes fixed.
The upgrades are mainly related to the audio source coding part of the standard. They increase the audio quality of the DRM system, and align it with existing, open, audio codec standards.
Specifically, the DRM system upgrades:
- Change the SBR implementation to the MPEG-4 format
- Replace the low complexity stereo tool with the parametric stereo tool
- Introduce the combination of HVXC and CELP speech coders with SBR
- Implement the MPEG-4 scalable syntax for the audio source coding
         
2003/12/07 05:00 15255 RNW Bonaire, 20 kbps stream to NZ. Poor reception. Real mp3 109/23/2 view
2003/12/03 12:00 21780 RNW Bonaire, 9 kbps stream to SW Europe. Only a couple of minutes of reception. Real mp3   view
2003/12/03 09:20
-
11:55
17700
&
17710
DW Radio, Sines, Portugal. Very good reception of 17.4 kbps streams beamed to Europe. On 17700 kHz until 11:00, then on 17710 kHz.

Real mp3   view
2003/12/02 11:00 17710 DW Radio, Sines, Portugal. Very good reception of 17.5 kbps stream beamed to Europe. Real mp3 143/10/3 view
2003/12/02 10:10 17700 DW Radio, Sines, Portugal, to Europe. Good reception of 17.5 kbps stream. Some interesting Mongolian folk music during the last 30 minutes. Real mp3 143/10/3 view
2003/11/30 05:00 15255 RNW English 20k stream. Very good quality audio at times, but lots of dropouts. Real mp3   view
2003/11/29 05:00 15255 RNW English 20k stream. Poor reception. Real mp3   view
2003/11/27 09:45 17700 DW Radio, Sines, Portugal, to Europe. When decodable the 17.4 kbps stream sounds very good. Real mp3   view
2003/11/25 11:00 17710 DW Radio, Sines, Portugal, to Europe. When decodable the 17.4 kbps stream sounds very good. Real mp3 177/10/3 view
2003/11/25 09:45 17700 DW Radio, Sines, Portugal, to Europe. When decodable the 17.4 kbps stream sounds very good. Real mp3 177/10/3 view
2003/11/20 09:25 21790 RNW, Flevo, Netherlands. "DRM for ABU & AIR" test to India. Only a couple of minutes of very broken audio decodable. Real mp3 155/14/5 view
2003/11/17 07:40 17650 BBC Asia Relay Station, Nakhon Sawan, Thailand. 11.6 kbps English stream to India. Only a couple of minutes decodable. Real mp3 104/34/4 view
2003/11/16 05:00 15255 RNW English 20k stream. Same reception as yesterday. Interesting doco about Marconi - who apparently had similar reception problems :-) Real mp3 98/35/5 view
2003/11/15 05:00 15255 RNW English 20k stream. Very patchy reception, but that bit rate does sound good when it works. Real mp3 99/38/3 view
2003/11/13 06:45 17650 Test transmission from Nakhon Sawan, Thailand, to India. Faint signal, detectable at times, but no decoding.     99/30/5 view
2003/11/7 11:05 17710 DW Radio, from Sines, Portugal. Quite good reception of 17.4 kbps English broadcast to Europe. Real mp3   view
2003/11/6 06:30 6095 RTL Luxembourg - just a few seconds again, together with "RTL - Digital Dynamite" text message. Real mp3   view
2003/11/5 06:00 6095 RTL Luxembourg. Just a few brief bits again. The DRMcalc graph shows clearly the peak in propagation. Real mp3   view
2003/11/4 06:30 6095 RTL Luxembourg. Just a few brief bits of the AAC SBR lc stereo 17.4 kbps stream. Real mp3 167/12/2 view
2003/11/3 09:10 21675 DW Radio to Europe from Trincomalee, Sri Lanka. 11.6 kpbs AAC mono stream. Weak, intermittent signal. Real mp3 190/24/2 view
2003/11/2 11:35 21780 RNW Bonaire to Europe. Briefly detectable, but far too weak & unstable for any decoding.     210/21/2  
2003/11/2 06:20 6095 RTL Luxembourg. My first decoded audio after months of trying! Only a few seconds though. But it was still "Radio Luxembourg on DRM" :-)) AAC SBR lc stereo 17.4 kbps stream. Real mp3 210/21/5 view
2003/11/2 05:00 15255 RNW Bonaire. Strong signal, Very good audio decodable from today's AAC SBR mono 20.9 kbps stream. Just a few dropouts. Very good quality for a 10kW DRM signal across the Pacific. Real mp3 210/21/5 view
2003/11/1 05:00 15255 RNW Bonaire. Strong signal, but no audio decodable from AAC SBR lc stereo 20.9 kbps stream.       249/65/4 view
2003/10/12 11:05 15440 DW Radio from Sines, Portugal. Very strong signal, but no audio decodable due to a strong signal from AWR Guam on 15435 kHz.     106/4/1 view
2003/10/12 04:30 15400 RNW from Bonaire. Excellent reception today of this test tranmission to New Zealand & Australia. Some of the best reception I've had of this broadcast. Real mp3 106/4/0 view
2003/10/11 04:30 15400 RNW from Bonaire. Good reception to NZ. Real mp3 112/4/0 view
2003/10/08 03:15 11955 BBC via Sackville, Canada. No audio decoded. Typical reception of this signal here at present.       view
2003/10/07 18:45 3995 DW Radio, Wertachtal, Germany. No audio, but id decoded. Thunderstorms are a problem on this frequency, not to mention daylight here!       view
2003/10/04 06:00 21675 DW Radio, Trincomalee, Sri Lanka. Just a brief few seconds of sync, but the first time I've seen any sign of this tranmission.     120/16/2 view
2003/10/01 17:45 7125 DW Radio, Wertachtal, Germany. Frequency occupied by VOA News Now, from Udorn, Thailand, here, but the DRM id was decoded during VOA fades.        
2003/09/27 12:30 15440 DW Radio, Sines, Portugal. Poor reception due to an AM station on the same frequency, but one I haven't received for a while. Real mp3 131/25/1 view
2003/08/24 19:40 9855 Radio Sawa via IBB Morocco Real mp3 116/24/3 view
2003/08/24 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Excellent signal strength at the end of the broadcast. Real mp3   view
2003/08/23 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Only fair reception today. Real mp3   view
2003/08/21 06:00
10:00
21675
15440
A bit of cheating here :-)
These are recorded via the internet from a DRM receiver in Hungary:
DW Radio via Trincomalee, Sri Lanka
DW Radio via Sines, Portugal
  Real
Real
mp3
mp3
   
2003/08/20 19:40 9855 Radio Sawa via IBB Morocco Real mp3   view
2003/08/17 19:30 3965 Special ADDX DX program via Deutsche Telekom, Julich, Germany. Good strong signal for the analogue version of the program, but I was not able to decode any audio from the DRM version. The audio clip is from the end of the analogue part of the broadcast.

Real
(not DRM)
mp3
(not DRM)
127/13/4 view
2003/08/16 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Only fair reception today. Real mp3 131/15/3 view
2003/08/14 19:45 9855 Radio Sawa via IBB Morocco Real mp3 130/17/3 view
2003/08/10 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Good reception. Real mp3   view
2003/08/04 03:30 11955 BBC World Service to North America. A lower bit rate today (18.4 kbps) but still a poor signal here in NZ.   mp3   view
2003/08/03 03:30 11955 BBC World Service to North America. Poor signal. Real mp3   view
2003/08/02 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Good reception. Real mp3 107/36/4 view
2003/07/31 19:45 9855 Radio Sawa via IBB Morocco Real mp3   view
2003/07/29 10:52
11:12
13755
15440
A bit of cheating here :-)
These are recorded via the internet from a DRM receiver in Hungary:
R Farda & R Free Asia via IBB Morocco
DW Radio via Sines Portugal
  Real
Real
mp3
mp3
   
2003/07/21 03:25 11955 BBC World Service via Sackville, 11955 kHz. Just a few minutes of audio before Vo Turkey powered-up. Real mp3   view
2003/07/21 07:00 11865 RCI/CBC. Variable reception. Real mp3   view
2003/07/15 07:00 11865 Radio Canada International/CBC from Sackville. One hour of French then two hours of English programming. Excellent reception for the whole 3 hours. 20.9 kbps AAC SBR stream. I've edited all the RCI ids into one loop that you can listen to in MP3 & Real formats.

Real

Hour 1
Hour 2
Hour 3
mp3

Hour 1
Hour 2
Hour 3
127/19/3 view
2003/07/13 19:40 9855 Radio Sawa via IBB Morocco in Arabic. AAC mono 9.4 kbps. Real mp3 122/36/4 view
2003/07/13 07:00 11865 Radio Canada International/CBC from Sackville. 14.5 kbps AAC stream. Good at the beginning and end of the transmission, but nothing in the middle. Real mp3 122/36/3 view
2003/07/13 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Signal not as strong as the previous day.
Real mp3 122/36/4 view
2003/07/12 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Very good reception except for a couple of dropouts.
Real mp3 122/40/5 view
2003/07/10 08:30 11865 Radio Canada International/CBC from Sackville. Loop of RCI ids, "SpotLight" featuring barbershop singers, CBC Radio News, then "Global Village" world music program. Excellent world radio programming with good reception using only a 14.5 kbps AAC stream. Real mp3 126/5/2 view
2003/07/08 19:40 9855 Radio Sawa via IBB Morocco in Arabic. AAC mono 9.4 kbps. Real mp3 133/17/2 view
2003/07/08 08:25 11865 Radio Canada International from Sackville, English programming to Europe. AAC mono 14.5 kbps. Real mp3   view
2003/07/03 07:00 11865 Radio Canada International from Sackville, French programming to Europe. AAC mono 14.5 kbps. Good reception for 20 minutes. Real mp3   view
2003/07/01 19:45 9855 IBB Morocco, 9.4 kbps Arabic. Real mp3 131/14/3 view
2003/06/30 07:20 11865 Radio Canada International from Sackville, French programming to Europe. AAC mono 14.5 kbps. Good reception for 20 minutes in AM mode (not recorded), then 20 minutes of DRM signal before fading away. Real mp3 127/25/4 view
2003/06/29 07:00 11865 Radio Canada International from Sackville, French programming to Europe. AAC mono 14.5 kbps. Good reception for 45 minutes, then faded. Real mp3 124/33/3 view
2003/06/29 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. A few brief bits of audio decoded, but basically unusable signal. Real mp3 124/33/3 view
2003/06/28 09:40 11865 RCI/CBC 14.4 kbps stream to Europe. Very choppy reception - pretty much unlistenable. Real mp3 124/34/4 view
2003/06/28 06:00 15110 "Super Station FM 99.7 Radio Kuwait" peaking nicely for 15 minutes or so for the English news and weather at 0600 UTC, before disappearing into the murk. 14.3 kbps stream. Real mp3 124/34/5 view
2003/06/28 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Marginal reception for 20 minutes, then the signal sank like a stone - this frequency hates it once the sun sets here. Real mp3 124/34/3 view
2003/06/24 19:45 9855 IBB Morocco, 9 kbps Arabic.   Real mp3 115/25/2 view
2003/06/24 06:40 15110 Radio Kuwait AAC mono 11.6 kbps. Faded out after 5 minutes. Real mp3 114/22/5 view
2003/06/22 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Marginal reception for 15 minutes, then "faded" out. Real mp3 115/28/3 view
2003/06/19 19:45 13730 DW Radio via Sines, Portugal. Real mp3 120/45/2 view
2003/06/16 20:15 9595 BBC from Rampisham. Unable to decode any audio, but screen capture shows id as BBC Radio K'woo, which James Briggs translates to "BBC Radio Kingswood Warren", the BBC R&D centre in Surrey. Thanks James!     129/31/4 view
2003/06/16 19:45 6095 RTL DRM test from Luxembourg. Too poor to decode any audio, but the signal was detectable for a few minutes prior to 20:00 UTC.     129/31/4 view
2003/06/16 08:00 11865 RCI Sackville, Canada to Geneva. AAC 11.6 kbps. Normal RCI programming today. Real mp3 129/31/3 view
2003/06/15 19:45 13730 DW Radio via Sines, Portugal. 20.0 kbps classical music. Good reception. Real mp3 129/31/5 view
2003/06/15 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Good reception. Real mp3 134/46/5 view
2003/06/15 03:00 11955 BBC World Service via RCI Sackville, Canada. Unable to decode any audio.       134/46/5 view
2003/06/14 07:15
09:35
11865 RCI Sackville, Canada to Geneva. AAC 11.6 kbps. Fair reception. Real
Real
mp3
mp3
151/21/4
151/21/5
view
view
2003/06/14 04:30 15400 RNW Bonaire to Aust/NZ. Signal was detectable, but too poor to decode anything.       151/21/4 view
2003/06/14 03:30 11955 BBC World Service (though the tag said "RCI to Geneva") via RCI Sackville, Canada. AAC 11.6 kbps. Blocked by Voice of Turkey 03:45 UTC. Real mp3 151/21/4 view
2003/06/12 19:40 13730 DW English from Sines, Portugal. Excellent reception of 20.9 kbps AAC SBR stream. SNR peaking at over 27. Real mp3 193/22/4 view
2003/06/12 06:45 11865 Test from RCI Sackville, Canada, to Geneva. This was some of the best DRM reception I've had here in New Zealand, helped by them playing music I like :-) Reception was a mix of 19.9 & 17.4 kbps rates. Most of the dropouts are due to my experimenting. Apparently this transmission was also providing excellent reception in Europe.

Real #1

Real #2
mp3 #1

mp3 #2
193/22/2 view
2003/06/09 19:40 9855 Test from IBB Morocco, relaying Radio Sawa programming. AAC mono 11.4 kbps. Real mp3 158/19/4 view
2003/06/07 03:00 11955 BBC WS from Sackville to North America. AAC SBR 19.9 kbps. Only a few brief bits of audio decodable. Real mp3 126/12/3 view
2003/06/04 19:30 9855 Test from IBB Morocco, relaying Radio Sawa programming. AAC mono 11.2 kbps Real mp3 106/20/3 view
2003/06/02 03:50 11955 Example of the interference between the DRM test from Sackville and the co-channel AM broadcast from the Voice of Turkey as heard in AM mode Real mp3 112/18/3  
2003/06/01 03:45 11955 BBC WS from Sackville to North America. No audio decoded. Blocked by co-channel signal from Voice of Turkey 03:50 onwards     113/20/2 view
2003/05/25 03:00 11955 BBC WS from Sackville to North America. Only a few brief bits of audio decoded. Blocked by co-channel signal from Voice of Turkey 03:30 onwards Real mp3 117/21/5 view
2003/05/24 03:00 11955 BBC WS from Sackville to North America. Software id's it, but it never got strong enough to decode. Blocked by co-channel signal from Voice of Turkey 03:15 onwards     118/15/3 view
2003/05/18 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Starts good, but gradually deteriorates during the broadcast. Real mp3 102/10/1 view
2003/05/17 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. Unable to decode any audio today.     103/9/2 view
2003/05/11 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia. The first few minutes are marginal and the recording shows what happens when the s/n ratio isn't quite good enough. Reception improved after the first few minutes. Real mp3 93/31/4 view
2003/04/13 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia Real mp3 102/8/3 view
2003/04/12 11:00 15440 DW English. AAC SBR mono 20.7 kbps. Test transmission originating from Sines, Portugal. Real mp3 103/14/2 view
2003/04/05 04:30 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia Real mp3 153/24/4 view
2003/03/30 04:55 15400 RNW English. AAC mono 14.5 kbps. Test transmission originating from Bonaire, Netherlands Antilles, to New Zealand & SE Australia Real mp3 155/21/4 view
2003/03/29 04:38 6010 BBC W/S test tape from RCI Sackville. AAC SBR 17.4 kbps Real mp3 147/22/4 view
2003/02/04 16:00 21760 Test transmissions from BBC to Africa - nothing heard          
2003/02/03 14:00 21760 Test transmissions from BBC to Africa - nothing heard          
2003/01/27 10:00 9780 BBC World Service brought to you by VT Merlin Communications from Rampisham HF station UK. Audio AAC SBR 21.6 kbps Real mp3 125/17/1 view
2003/01/26 06:00 12025 Test transmission from Radio Netherlands Bonaire to New Zealand and SE Australia. Audio format varies. For the first 15 minutes it's AAC 14.5 kbps. The next 15 minutes appears to be a test of various rates from 6.0 to 34.7 kbps as reported by the software. The remainder of the program is at 14.5 kbps. Dutch language. Real mp3 129/26/3 view
2003/01/26 06:01 12025 15 minutes of different bit rates from the above broadcast.   Real mp3    
2003/01/26 06:02 12025 Musical sample from the above broadcast.   Real mp3    
2003/01/25 10:45 15170 Test transmission from Radio Netherlands Bonaire to SW Europe. Audio AAC mono 14.5 kbps. Reception improved during the last 15 minutes. Real mp3 130/15/5 view
2003/01/25 10:00 15170 Test transmission from Radio Netherlands Bonaire to SW Europe. Audio AAC mono 14.5 kbps. Reception was not good enough to listen to. Real mp3 130/15/5 view
2003/01/25 06:00 12025 Test transmission from Radio Netherlands Bonaire to New Zealand and SE Australia. Audio AAC SBR mono 20.9 kbps. Dutch language. Real mp3 130/15/5 view

If you have any comments about this page, or DRM™ reception, please feel free to email me.

chris.www@owdjim.gen.nz (or chris@digitalradio.co.nz)


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