View Full Version : TDPradio via Sackville on 11900 kHz in stereo
This coming Saturday, September 25, 2004, the TDPradio broadcast in DRM towards the Americas will be in parametric stereo.
We would appreciate very much if you could spread this news, so that as many people as possible can enjoy this stereo broadcast on shortwave. All reports are most welcome.
So tune in at 1600 UTC on 11900 kHz.
Ludo
chemclouds
24-09-2004, 20:03
Hi Ludo,
That is good news !!
As you know, I have been waiting for that.
Thanks for posting it. :)
Carl
No multipath most of the time. 100% audio for 1st half-hour. Started at S5-S7 diminished to S0-S3 towards end. Was definitely two-channel stereo. Can't say I enjoy the music. Audio quality good but since what I heard near beginning and end (mowed the lawn in between) was synthesised or heavily processed in production, that's not saying a whole lot about the encoder perfromance. Nonetheless, my first known reception of stereo on SW!
73, Tom
Hi Tom,
Many thanks for the report. We hope you did not mowed the lawn because of the program content, hi :)
Ludo
Originally posted by lmaes
Hi Tom,
Many thanks for the report. We hope you did not mowed the lawn because of the program content, hi :)
Ludo
Hi Ludo,
I had to mow the lawn - logging TDPRadio at the same time was just a good use of time, and besides, I wanted to be able to give you a report. Congrats on your pioneering efforts.
How did you deliver the programme to Sackville?
I noted an audio level adjustment at the beginning - it came up maybe 6dB or so. After the end, the transition to NASB in mono was rather sloppy - fair bit of buzz on the audio, initially in two channel mode and alternately out both then left only until settled.
73, Tom
chemclouds
25-09-2004, 18:28
Ludo,
Tom is correct. "At the beginning - it came up maybe 6dB or so". I forgot to include that in my report.
Carl
chemclouds
09-10-2004, 18:22
TDPradio 16:00 TO 16:59
Hi Ludo,
Before submitting your log, I always get something in advance. The best music on the planet. It`s kind of hypnotic. It borders on the line near Hemi-Sync. "It`s feel good music". How about a 2 to 4 hour special one saturday? TDPradio, It`s Hi Tech. To all at TDPradio, excellent work. Keep that streaming media running, we like it. "KEEP IT THAT WAY".
Carl
Hi Carl,
Thanks for the report. It's nice to see a straight line!:)
Ludo
tradio99
09-10-2004, 18:52
11900kHz the first 30 minutes of broadcasting - reception results in Latvia - 1 second of audio, but ID was DRM from CBC, not usual TDPradio in DRM
chemclouds
09-10-2004, 22:24
Hi Ludo,
I got so absorbed in the music that I neglected to give a report on the technical side of the received transmisssion. Well, here goes. On the positive side, the frequency response for the bit rate used was impressive. The dynamics also was improved over the last transmission. I also noticed the audio level was increased compared with the last transmission. The audio was clear and clean. Listening test revealed no distortion. Now, for the negative aspect. I noticed a lower midrange clicking or pulsation when the audio level was -23 db or less. But only noticeable on very quite passages. Back to the positive. Dynamic range also was improved. In my opinion, thats excellent, considering the bandwidth and bit rate use. Excellent job.
Carl
chemclouds
16-10-2004, 16:00
No audio for TDPradio. SNR is good but the audio indicator light is blinking every 2 to 3 seconds or so.
Audio restored at 16:25
Carl
chemclouds
16-10-2004, 17:04
TDPradio 16:28 17:00
Hello,
I did not start a log until the audio problem was corrected. There was a sudden increase in the audio level at 16:38. I was not at the computer to measure it. Murphy`s Law grabbed this broadcast.
Carl
Hi Carl and others,
Thanks for tuning in to today's broadcast. It seems that more is going wrong today. Both audio problems from Germany and Canada, although the source material was OK. Hope the people at Sackville can sort out the reason for the problems.
As usual, no audio over here, but for the record, the logfile is enclosed which shows a faint little signal.
Ludo
chemclouds
23-10-2004, 16:24
TDPRadio
Hi Ludo.
At this point the audio quality is very good. Good freq. response as well. The dynamic range is also good. This is another example how DRM should sound. Good job Ludo !
Carl
chemclouds
23-10-2004, 17:02
TDPRadio 16:00 TO 16:59 UTC
Hi ludo,
All DRM broascasts should sound this good. I have no complaints.
Good mix today.
Carl
Hi Carl,
Thanks for the nice remarks and the report. Keep up the good work.
Ludo
PS: when experimenting with both Dream and DRMSWR, why not compare both logs with DRMcalc and have both graphs into 1 picture? It does work great!
Hi Ludo,
just for the records, some audio decoding was possible in Germany, I did not notice these audio problems as on the transmission from Jülich.
73, Simone
chemclouds
30-10-2004, 17:01
TDPRadio 11900 16:03 TO 16:58 UTC
Hello Ludo,
I was late starting due to CBC. The transmitter bit the dust at 16:48 and returned at 16:53. I experienced a few dropouts in todays broadcast. The audio quality was very good thought the frequency range. The dynamic range was also good. All of the music transmitted in DRM from CBC is terrible, except for yours. It would be great if all of the music transmitted via CBC had the great quality that TDPradio has. Oh, I almost forgot, it`s good to see the text message TDPradio.
Carl
Hi Carl,
Sorry to hear about the dropouts. We only had 1 dropout, but it lasted the whole hour. We had hoped to hear some audio, but no luck this time. But we did see the label "TDPradio" for a few seconds. Were there also text messages about TDPradio?
Ludo
chemclouds
30-10-2004, 17:33
Originally posted by lmaes
Hi Carl,
Sorry to hear about the dropouts. We only had 1 dropout, but it lasted the whole hour. We had hoped to hear some audio, but no luck this time. But we did see the label "TDPradio" for a few seconds. Were there also text messages about TDPradio?
Ludo
Hi Ludo,
About the dropouts, I had quite a few. What is strange is when NASB began I had no dropouts.
If there were text messages about TGPradio I did not see it. All I saw was TDPradio instead of DRM from CBC.
Carl
Big spike in the middle, 20 dB above DRM sidebands. No decoding but saw SNR as high as 20 dB. Occasional trickle of speech and music off AM detector - co-channel? Or is transmitter not functioning correctly?
73, Tom
Hi Tom,
I think it is an AM co-channel interference.
73, SImone
Originally posted by simone
Hi Tom,
I think it is an AM co-channel interference.
73, SImone
I think it's a transmission problem. I can hear faintly the typical TDPradio machine music coming through the DRM hash in AM detection mode.
73, Tom
Originally posted by VE3MEO
I think it's a transmission problem. I can hear faintly the typical TDPradio machine music coming through the DRM hash in AM detection mode.
73, Tom
Problem fixed at 16:32. Now seeing 26dB SNR, no carrier, solid audio.
73, Tom
Hi all,
not bad here in Germany once the problem had been solved, see attachment
73, Simone
chemclouds
06-11-2004, 17:06
TDPRadio 16:02 TO 17:01
Hi Ludo,
What was the problem with the first thirty minutes? Man, the audio quality of the music was very good. It sound like I was listening to a Compact Disc.
Good mix today also. It would be nice if all of the music from Sackville had the quality that yours have.
Carl
chemclouds
13-11-2004, 17:01
TDPradio 16:00 TO 16:59
Hi Ludo,
I saw the text message today, and copied it.
Contact us at TDP radio, PO Box 1, 2310 Rijkevorsel, Belgium or visit our web site at www.tdpradio.com Enjoy !
Good audio quaity today. Here is my report.
100% audio today.
Carl
Only a snippet of audio in minute 18 at this location, showing again parametric stereo but station label still CBC instead of TDPradio.
Ludo
chemclouds
27-11-2004, 17:33
TDPradio 16:00 TO 16:58
Hello Ludo,
CBC had technical problems at the beginning of this broadcast. You will see a break in the graph indicting it. The problem was corrected fast though. After the correction, audio was received and maintained. The audio was of high quality, that includes distortion, frequency response, and dynamic range. Oh, one other thing, the text read DRM FROM CBC. not TDPradio. Here is my report.
Carl
chemclouds
04-12-2004, 16:02
Hi Ludo,
I can not receive this transmission. The ICOM receiver indicates 20 db s units. However, DRMSWR will not decode it. Problems at Sackville ?
Carl
chemclouds
04-12-2004, 16:57
DTPradio 16:03 TO 16:59
Hi Ludo,
I have always received 99.9 or 100% audio on this frequency, but not today. I could not receive any audio. That is very unusual. However, here is my report.
Carl
Ludo,
I returned to let you know that minutes after NASB started I began receiving audio. I will post their report in DRM from CBC.
I wonder what was wrong with that signal.
Carl
Hi Carl,
did you notice when they changed the settings? Maybe there was something wrong using stereo for TDP and later mono for NASB was OK.
73, Simone
chemclouds
04-12-2004, 18:13
Ludo,
I have a couple of spectrum scope images of the brodcast for today. I thought you would be interested.
Carl
Hi Simone,
Before 16:00, when Sackville powered up the transmitter, I could hear a whistling sound from the ICOM`S internal speaker, along with noise. I should only hear noise. This whistling continued until 17:02. This is what the spectrum scope looked like in 2 different time periods.
Carl
Hi Carl and Simone,
Thanks for your info on the transmission of TDPradio on December 4, 2004.
It looks like something went wrong, but we do not know yet what happened, but will try to find out.
We were not hoping to hear audio over here (see the log with the very low signal) but for you not to hear anything is strange.
Ludo
chemclouds
05-12-2004, 16:50
Hi Ludo and Simone,
That whistling sound that I reported was not created by a heterodyne effect, neither was it a constant requency. As I reported, it sounded like someone was whistling. The whistling was not random. It sounded like it had a melody. I thought at first there was an AM station stansmitting on the same frequency. Another thought was, someone left a microphone on in a studio by accident and was transmitting AM on the same frequency with someone whistling. This Whistling continued until 17:02. At that time, I had instant audio 100% to the end of NASB`s broadcast, that ended at 1729. I don`t know what happened betwen 16:55 to 17:02. It would be interesting to know what happened to this broadcast.
Carl
Hi Carl,
have a look at the posts in this thread from Nov 6th, I assume it was the same problem, the "whistling" was related somehow to TDP´s music, and what looks like a co-channel interferer originates from the Tx itself.
73, Simone
chemclouds
05-12-2004, 18:19
Originally posted by simone
Hi Carl,
have a look at the posts in this thread from Nov 6th, I assume it was the same problem, the "whistling" was related somehow to TDP´s music, and what looks like a co-channel interferer originates from the Tx itself.
73, Simone
Simone,
The whistling was not from TDPRadio. I couldn`t receive TDPradio. As I stated earlier, this whistling sound was heard through the ICOM receiver speaker. I turned the volume up on the ICOM to hear the noise, to determine if it was AM co-channel interference or what. That`s when I hard this wistling. It could have been AM co-channel interference. Remember, I stated that I could not decode any audio until 17:02. I also uploaded 2 jpg files and a reception report showing no audio received. If you or Ludo scrape up what happened, I sure would like to know.
Ludo,
Next week, if I can`t receive audio using DRMSWR I will record the analogue signal direct from the ICOM line out and I will upload it to you in the wwwroot dir. I will also upload here, images of the spctrum scope along with a reception report. If it is AM co-channel interference, recording from the ICOM line out will be useful in determining it.
Carl
Hi Carl and Simone,
We are investigating the problem and will hopefully come up with an explanation soon.
Thanks for the attention.
Ludo
chemclouds
05-12-2004, 21:39
Hi Ludo,
If anything is unusual with the next TDP broadcast on 11900 I will be more prepared. Please post the results of your findings, I`m interested.
Carl
chemclouds
11-12-2004, 16:22
Hi Ludo,
I thought I would give you a report during the middle of this broadcast. DRMSWR stated that this broadcast is in stereo. However, I hear no separation between channels. Sounds like mono to me. I will upload the full report after the transmission. I also will upload the audio of the transmission in the wwwroot directory. Here is a spectrum shot, showing this transmission in parametric stereo.
Carl
Hi Ludo, Carl,
Originally posted by chemclouds
I also will upload the audio of the transmission in the wwwroot directory. Carl
What´s that?
Here are my results, some audio decoding was poosible today, seemed like mono to me as well.
73, Simone
@ Carl: When did they start the transmission, I thought the beginning is 1600 UTC?
chemclouds
11-12-2004, 16:59
TDPradio 15:51 TO 16:59
Hello Ludo,
As I stated earlier, This transmision was in mono not parametric stereo. The audio had good quality. I will upload the audio file in the wwwroot dir. I only recorded about half of audio transmision. Here is my report.
Carl
Hi Carl and Simone,
Thanks for tuning in. We did manage to get some audio this time, but not such a good result as Simone.
The label showed parametric stereo but because we had only snippets of audio, we did not manage to determine if the source was mono or stereo. Should have been stereo however as was the broadcast through Jülich today.
We guess that the mono feed line to transmitter was not duplicated this time.
@Simone, wwwroot is the map of an ftp server we use for audio file exchange ...
@Carl, did you receive our PM this past week?
Ludo
chemclouds
11-12-2004, 17:58
Hi Simone and Ludo,
Simone, usually before any scheduled DRM broadcast from CBC they usually power up the transmitter a few minutes before the broadcast.
Ludo,
I did not receive your PM this past week. Check out the sound file. It has been uploaded. As I stated earlier, It was mono not stereo.
Carl
chemclouds
18-12-2004, 16:07
TDP Radio 11900
Hi Ludo,
Everything is thumbs up on my end. We have Parametric stereo!!
Good frequency response, good dynamics and good quality.
I will upload full report after the broadcast. Oh, one other thing, the text is displaying TDPradio. Here is a spectrum shot.
Carl
Alan Johnson
18-12-2004, 16:38
Not very good, but the first time I've been able to receive any of the program.
chemclouds
18-12-2004, 16:58
TDPradio 11900 15:58 TO 17:00
Hello Ludo,
Everything went well today. Read my last report for todays broadcast. This is the best audio quality I have heard transmitted from Sackville. 99.9% audio.
Carl
Hi Alan and Carl,
Good to see that some reception was possible in Nevada!
Over here, only a very thin signal, without any audio at all this time.
Pleased to see that the correct label and info is back, thanks to the guys at Sackville.
And your comments about the good audio quality, Carl, are certainly appreciated by the people from Sackville and those of TDPradio too.
Ludo
Hi Ludo,
not much audio decoding was possible in Germany, see attachment
73, Simone
FritzWue
18-12-2004, 19:21
TDPRadio only with a few seconds of audio, but then excellent quality.
Conditions were much better during the following transmission, so I show the results here for comparison, although the bad audio was not at all comparable to TDPRadio.
chemclouds
25-12-2004, 17:10
TDPradio 16:00 TO 16:59
Hi Ludo,
There were technical problems for 7 minutes, from 15:58 to 16:05.
From 16:05 to 16:59 thumbs up. The engineer did a fine job in correcting it in a timely manner. We had stereo, and the audio quality was very good. To CBC and the manager, program director, the dj`s and above all, Ludo Maes (the Chief Engineer of TDPradio) Happy Holidays. Here is my report,
Carl
Also some decoded audio over here.
Hi Ludo and others,
pretty good reception here in Germany today, once the problems had been solved, 90% correctly decoded audio, see attachment
73, Simone
chemclouds
01-01-2005, 16:56
TDPRadio 11900 16:00 TO 16:40
Hi Ludo,
I had a computer problem during the broadcast. I had to reset the computer. Therefore, I am submitting two reports. The audio quality of the broadcast was good. We also received the text message of TDPradio. Here is report 1 of 2. 99.9% audio.
Carl
chemclouds
01-01-2005, 17:03
TDPradio 11900 16:43 TO 16:59
This is report 2 of 2. 100% audio.
Carl
Hi Ludo,
quite good results here in Germany, strong signal, no interferences, 96.7% correctly decoded audio, see attachment
73, Simone
..and here is a screenshot showing they were using the regular CBC label and text messages, I did some more at the beginning and just before the end, they are all the same. Carl ??
73, Simone
chemclouds
01-01-2005, 21:23
Hi Simone.
This is New Years Day !! We were celebrating here. Maybe I saw what I wanted to see rather than what was actually there. With all of those Spectrum shots you uploaded, you are definately correct ! It could not have had the text message TDPradio. Thanks for being so observant, and for uploading the images. I must have had too much today. Too much what ? :D
Carl
Not detecting anything off either the vert or horiz ant. Anyone else?
Tom
chemclouds
08-01-2005, 16:13
TDPradio 16:00 TO 17:00
Hi Tom,
You are correct. There is no signal. The xmtr is not up.
I have no report.
Carl
chemclouds
15-01-2005, 16:09
TDPradio
We have excellent stereo audio quality from Sackville today.
Here is a shot of DRMSWR. I will have full report following the broadcast.
Carl
chemclouds
15-01-2005, 16:59
TDPradio 15:58 to 16:59
Hi Ludo,
The frequeny response, dynamic range and clearity was excellent.
To TDPradio and Sackville, a job well done. :) Here is my report.
Carl
Hi Carl,
Good to see that everything is nice at your end. Thanks for the report!
Ludo
Hi Ludo,
some audio decoding was possible here in Germany, see attachment
73, Simone
chemclouds
22-01-2005, 17:40
Hello Ludo,
I started the recording process early as indicated in this log because I had to leave home to run some errands. I did return before the transmission ended. The text did display TDPradio :)
Here is my report.
Carl
chemclouds
29-01-2005, 17:14
TDPrdio 16:03 TO 17:00
Hi Ludo,
The best sounding Shortwave Digital Audio I have heard to date Is from TDPradio.
In my opinion it exceeds FM Stereo. Congratulations Ludo !! Very good audio quality!!
Audio decode for transmission is 100% !!
Carl
Hi Carl,
Thanks for the compliments. No reception over here, but glad to see that it is very reliable at your end.
Ludo
Originally posted by chemclouds
TDPrdio 16:03 TO 17:00
Hi Ludo,
The best sounding Shortwave Digital Audio I have heard to date Is from TDPradio.
In my opinion it exceeds FM Stereo. Congratulations Ludo !! Very good audio quality!!
Audio decode for transmission is 100% !!
Carl
chemclouds
05-02-2005, 16:04
TDPradio
The ransmitter went down within seconds after the broadcast started. I am still in record mode. Transmission restored. It went out again! Transmission restored. It is now 16:08 sounding good.
Carl
Alan Johnson
05-02-2005, 16:24
Fairly good reception today, but couldn't listen for very long, as I need to go to work.
Alan
chemclouds
05-02-2005, 17:03
TDPradio 16:00 TO 16:59
Hi Ludo,
The audio quality was good but the broadcast was in mono not stereo, although the text message stated it was in stereo. Monitored using a Sony Digital Power Amplifier with a pair of Klipsch KG3`s. I later switched to a Pair of AKG Headphones. Again, It was mono not stereo. Transmitter problems at the beginning but it was fully corrected by 16:08. Here is my Report.
Carl
Hi Ludo,
just a few dBs missing here in the non-target area. Quite stable signal however SNR too low. Not much audio.
73
Daniel
chemclouds
12-02-2005, 17:07
Hi Ludo,
This seems to be the same program material that was broadast on 15265 a couple of days ago. It was in mono. Todays transmission was also in mono. It probably left the studio that way. I haven`t seen you around for a while. I hope everything is okay. 100%. Here is my report.
Carl
chemclouds
19-02-2005, 16:32
Hi Ludo,
Excellent audio quality today. Good stereo seperation as well.
Full report after the broadcast.
Carl
chemclouds
19-02-2005, 17:05
TDPradio 16:00 TO 16:59
Hi Ludo,
You have the magic touch !! Excellent audio quality, and excellent stereo.
The best sounding Stereo DRM transmission on the planet !! This is the way digital shortwave should sound.
This audio was full and rich. Ludo, come to the head of the class. Oh, one other thing, good mix today.
A message to the other broadcasters: Follow Ludo`s high standards of excellent broadcast engineering.
Great job Ludo !! 100% audio.
Carl
Hi Carl,
A weak signal here but unfortunately, no audio.
Ludo
Originally posted by chemclouds
TDPradio 16:00 TO 16:59
Hi Ludo,
You have the magic touch !! Excellent audio quality, and excellent stereo.
The best sounding Stereo DRM transmission on the planet !! This is the way digital shortwave should sound.
This audio was full and rich. Ludo, come to the head of the class. Oh, one other thing, good mix today.
A message to the other broadcasters: Follow Ludo`s high standards of excellent broadcast engineering.
Great job Ludo !! 100% audio.
Carl
Hi Carl,
You are too kind, but all the credit goes to our fine program producers and engineers!
Ludo
chemclouds
26-02-2005, 17:05
TDPradio 15:59 TO 16:59
Hi Ludo,
The best sounding Digital Shortwave Stereo Broadcast on the planet!! You may say, you mentioned that before. Good!!!
The audio was professional quality, Throughout. Good job!! Todays mix was also good. TDPRadio is first class. To all at TDPradio, excellent job. 100% audio decoded.
Carl
chemclouds
05-03-2005, 17:07
TDPradio 16:00 To 16:59
Hi Ludo,
As usual the audio quality was very good. There was one problem, only minor though. The text message said DRM fom CBC, not TDPradio.
Until next time,
Carl
Hi Carl,
Thanks for the report from last week.
This week, the signal here in Europe was very weak, so we could not check if the ID was correct today.
Ludo
Hi Ludo, all,
some audio decoding was possible in Germany today, see attachment
73, Simone
Hi Simone,
No audio for me this time, only a very weak signal.
Ludo
Hi Ludo,
about half an hour in the middle of the transmission was not too bad for listening in Germany, see attachment
Btw, they did not change the label during the following NASB broadcast.
73, Simone
Hi Ludo,
a weak signal in Germany, at least some audio from Sackville, not only silence as from Jülich today :)
73, Simone
FritzWue
23-07-2005, 21:13
I was on frequency only for the last five minutes.
No audio at that time, but the signal was there:
FritzWue
20-08-2005, 16:56
QRM
Hi Ludo,
reception from Sackville improved again, some decoded audio today here in Germany, see attachment
Simone
Hi Simone,
Thanks for the report on the reception via Sackville. It seems your reception was even better than ours.
Ludo
Hi Ludo,
quite good results for about 40min in the first hour here in Germany, no signal after 1705, see attachment
Btw what´s the problem now with your soundcard, the last screenshot did not look too bad besides the high input levels?
Simone
Hi Ludo,
good results from Sackville today, see attachment
Simone
FritzWue
19-11-2005, 16:59
Just a short report as I missed the 49m transmission.
No joy at all. Sounds like the antenna got turned around and beamed to Europe.
The s-meter on the Pegasus was pegged at 40-over+, but the SNR was only about 6-11 dB.
Funny thing, though. In analog mode, I thought I heard the music under the "hash".
I enjoy a full 2-hours solid most Saturdays.
24.5 dB, full audio decode...
And 20 minutes into the first hour I heard the scratch on the record, left channel only. About 4 clicks.
mitajohn
07-01-2006, 18:16
Hi all,
A good propagation path helped this quite good result on 11900 kHz TDPradio. The signal was rather weak but pretty stable with low SNR. The sound for that kind of music was good, but would be better for the BR used. At 1746 a very strong carrier appeared at 11905 and caused a big dropout but last only for a couple of seconds. At 1758 the carrier appeared again and finished the reception. The carrier at 11905 is a TX of VOA. Look at the attached png.
John
Close to the best copy I have had. I enjoyed my own private "rave" here out West!
What seemed strange was that the SNR stayed about the same, the audio decoded took a major dump at 1700z.
Hi Ludo, all,
some audio decoding today in Germany, see attachment
Simone
Not so bad in Europe. At least much better, than the 6015 ended.
Hi Carsten,
62% of correctly decoded audio is not too bad for reception in Europe for a transmission intended for the USA.
A report from Toledo, OH arrived with great reception!
Ludo
Alan Johnson
04-02-2006, 16:57
My best reception ever. Some audio dropouts on chart are due to my switching antennas.
Alan
Hi Ludo,
60% Audio in your non-target area.
73, Daniel
Hi Allan and Daniel,
Both of you are outside the primary target area, but we are glad to hear that you are able to pick up TDPradio.
I'm sure the experience is not the same as when you can listen in perfect conditions with audio all of the time, but nevertheless we hope you enjoy the kind of sound quality we try to achieve on shortwave!
Thanks again,
Ludo
Hi all .
This is my first time i tune up on 11900 Khz.
Nice to hear DRM signal in DX from Canada.
My record is CDA of 75% from 50min.
Signal peak S9 and very QSB under S6 drop outs for carrier on 11900.
My antenna her is gama tune 8m vertical for 10 Mhz and ground system is 100 m copper wire under 20 CM snow hi !!!
Hi Ludo,
some audio decoding here in Germany today
Simone
Alan Johnson
25-02-2006, 17:03
Actually more listenable than the graph would lead one to believe.
Actually more listenable than the graph would lead one to believe.
The same to me. As due to several reasons my logs are always worse than these of other (European) DRM listeners in this forum I guess the signal path to Canada must have been very favourable this afternoon.
As far as one can judge sound quality of this type of music it sounded good either.
73 Andreas
Today's reception from near Atlanta, GA USA
edit: new thread merged with the existing one, Simone
Attached text file is my DRM log 7/29/06 1611-1800UTC
Location near St. Louis, MO
WinRadio G313e
Antenna is home made trap dipole in attic 40M-10M
I used Excel to graph the SNR vs time but could not attach the resulting 26KB XLS file.
Summary: Nearly 100% audio for the first 35min with S7 signal over S3 noise, then QSB to S5 broke the audio. The 20.8 kbps stereo sounded great while it lasted. The data stream was continuous for the entire 109 minute recording.
Brendan1
05-08-2006, 18:17
Didn't get all the broadcast - TDP just doesn't make it to the western US very well (ever). But, there was some listenable data today. I think Sackville should be using a higher frequency to cover the continent, versus just a portion of it.
Today's reception report. There was a strong thunderstorm (dropouts due to lightning) with heavy rain at the time.
Attached zip file is my DRM log 8/19/06 1637-1800UTC
Contents:
TDP Radio Log 20060819 1637UTC.txt (text log)
TDP Radio SNR 20060819 1637UTC.xls (SNR chart)
Location near St. Louis, MO
WinRadio G313e
Antenna is home made trap dipole in attic 40M-10M
I used Excel to graph the SNR vs time from the text log.
Summary: Nearly 100% audio for the entire 83min with S8 signal over S3 noise, with short breaks between 50 – 53 min. The 20.8 kbps stereo sounded great. The data stream was continuous for the entire 83 minute recording, but misidentified the transmission. The text proclaimed, (9800 kHz 20:45 – 23:59 UTC “From Sackville NB, Canada for your listening pleasure, to North-East USA.”) The text should have stated, (11900 kHz 16:00 – 17:59 UTC “From Sackville……”) Also the transmission ended abruptly at 18:00 UTC truncating the music without any signoff ID or other fanfare.
This afternoon's 11900 kHz (unattended) reception report.
Looks good.
This afternoon's 11900 kHz reception report. Good stable conditions.
The first three blips are my fault (or rather my computers fault :o ).
-Zyg-
Alan Johnson
23-09-2006, 16:30
Just enough audio recovery to be frustrating. Like Zyg I also noticed that the ID panel was for the 9800 kHz service and that the transmission was listed as being mono.
This afternoon's 11900 kHz reception report.
The ID showed the CBC DRM 9800 kHz screen :confused: (see attached jpeg) instead of the normal TDP screen. It also indicated that it was not stereo.
-Zyg-
Brendan1
30-09-2006, 18:07
Well, this is better than normal for me, but no audio in spite of that. Propagation seems to be slowly improving for this frequency. The DRM encoder was locked up at first, and only the FAC was actually sending data with the MSC and SDC locked up. No SDC data showing TDP, only what appeared to be default info of some kind - not even CBC was showing.
Alan Johnson
07-10-2006, 18:33
SNR almost high enough for audio.
Brendan1
07-10-2006, 20:24
Almost, but not quite. Give the propagation gods a few more weeks, and I'll be able to get good audio.
Alan Johnson
14-10-2006, 16:16
My 14 Oct results (or lack of)
Brendan1
14-10-2006, 17:52
Everything is against me on this one. Propagation gets the biggest blame, so does some local electrical noise right on frequency. :mad:
Ludo - This is perhaps the most problematic North American broadcast for me. I've never been able to get good reception from Sackville on this frequency and time. In my humble opinion, a higher frequency (15 or 13 megaHertz) would be better, and perhaps taking it down to 17.46 kbps in p-stereo. Then, many of us who aren't in the NE USA will probably be able to receive it.
That's all for now, folks.
This afternoon's 11900 kHz reception report.
The stereo audio was unbalanced and mostly coming through the right speaker.
Not sure why the chart shows 100% decoded audio, when there were a few blips, but certainly better than the last few nights (9790 kHz) reception at this location!
-Zyg-
Reception in France at Paris.
Daniel
Complement at my message.
TDP is QRM at Paris by RDP (Portugal) on 11905 kHz.
Daniel
..oh yes indeed! Co-channel interference from 11905 kHz ruined the (visible) signal from Sackville also up here in the north completely. Thus no audio and no log!
Brendan1
21-10-2006, 18:07
This was unattended. While the decoded periods were quite short, there was a signal present for the entire two hours. Was also being sent at 20.96 kbps, Sackville normally does 20.88. There was a changing message on the SDC as well, I've now seen this for the last two days only: before it was static for all broadcasts.
This afternoon's 11,900 kHz reception report.
I tuned in during the last 10min, quite good signal, same configuration and text messages that TDP use here in Europe.
Simone
Surprisingly still a signal at 18:29, not much audio toiday due to interfernce.
Simone
This afternoon's 11900 kHz reception report (unattended).
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