DRM Software Radio Forums  

Go Back   DRM Software Radio Forums > DRM Software Radio - User Forums > Reception Results - Recent Posts
User Name
Password
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 31-01-2009, 20:11   #1
simone
simone
 
simone's Avatar
 
Join Date: Jan 2003
Location: Bad Salzschlirf, Hessen, Germany
Posts: 10,144
Special DRM transmissions to TUNIS/ HFCC conference

There will be special DRM transmissions to TUNIS during HFCC conference next week (Monday 2 to Thursday 5 February 2009) from Issoudun TDF:

Tx location: Issoudun / France,
Power = 150 kW
Azimuth = 150
Antenna = 4/4

DRM configuration:
64 QAM; cr=0.6; SBR; mono

Code:
*F = 11875 kHz* Monday 02/02: 08.00 to 10.00 UTC only Tuesday 03/02: 08.00 to 10.00 UTC only Wednesday 04/02: 08.00 to 10.00 UTC Thursday 05/02: 08.00 to 10.00 UTC *F = 11875 kHz* All days: 02 to 05/02 12.00-14.00 UTC *F = 5865 kHz* All days: 02 to 05/02 19.30-20.59 UTC

DRM listeners in Southern Europe and North Africa should be able to receive these transmissions, please post results here.

Thanks,
Simone

corrections from Jacques post below in red

Last edited by jbriggs : 03-02-2009 at 18:04. Reason: wrong frequency
simone is offline   Reply With Quote
Old 01-02-2009, 18:46   #2
F6AJW
Registered User
 
Join Date: Nov 2002
Location: Paris 75014
Posts: 239
Red face Reload this Page Special DRM transmissions to TUNIS/ HFCC conference

HI Simone, James and other friends,

Sorry, I made a mistake: transmissions on 11875 kHz will be also from 08.00 to 10.00 UTC on Monday 2/02 and Thuesday 3/02.

Regards / 73's

Jacques GRUSON F6AJW
F6AJW is offline   Reply With Quote
Old 02-02-2009, 08:04   #3
Sixten
Registered User
 
Sixten's Avatar
 
Join Date: Jun 2005
Location: N59 37' / E17 50' Marsta Sweden
Posts: 2,894
Feb 02

Hi Jacques.

Short log from 11875 . very fast end deep fading. .
Attached Images
File Type: png 11875-090202-0829-0854-SIXTEN .png (46.1 KB, 344 views)
__________________
Sixten SM5DAJ

http://sm5daj.se
Sixten is offline   Reply With Quote
Old 02-02-2009, 09:19   #4
Sixten
Registered User
 
Sixten's Avatar
 
Join Date: Jun 2005
Location: N59 37' / E17 50' Marsta Sweden
Posts: 2,894
Feb 02

Hi all.

Last 58min. now better signal .

Ok Jacques.

TNX info, TX is QRV now again. 1207UTC.
Attached Images
File Type: png 11875-090202-0900-0958-SIXTEN .png (46.6 KB, 315 views)
File Type: png 11875_TDF-RFI.png (5.0 KB, 314 views)
__________________
Sixten SM5DAJ

http://sm5daj.se

Last edited by Sixten : 02-02-2009 at 11:10.
Sixten is offline   Reply With Quote
Old 02-02-2009, 09:37   #5
F6AJW
Registered User
 
Join Date: Nov 2002
Location: Paris 75014
Posts: 239
Cool DRM to HFCC Tunis

Hi Sixteen,

Antenna direction is not good for you but nice to know that transmitter is on air.

Rezgards / 73's.

Jacques
F6AJW is offline   Reply With Quote
Old 02-02-2009, 11:44   #6
Ager
Registered User
 
Ager's Avatar
 
Join Date: Jun 2004
Location: Finland
Posts: 69
11875

Well, Jacques, we here in the North presumably like TDF so much that we still try to keep listening (especially if we dont have to listen to TDPRadio trance any more).

Good SNR, perfect reception here at the moment. It is just too bad, for me, too, that I cannot be listening somewhere in the warmth of Tunis.

Last edited by Ager : 02-02-2009 at 11:46.
Ager is offline   Reply With Quote
Old 02-02-2009, 12:15   #7
F6AJW
Registered User
 
Join Date: Nov 2002
Location: Paris 75014
Posts: 239
Thank you Ager.

I h
F6AJW is offline   Reply With Quote
Old 02-02-2009, 12:23   #8
F6AJW
Registered User
 
Join Date: Nov 2002
Location: Paris 75014
Posts: 239
Red face

Thank you Ager.

Sorry for my too short previous message...

I had another look to your very interesting reports (with audio files) sent during transmissions to Finland some days ago. Now, you are in a less than optimal situation I agree.

I am no more working for TDF being something like pre-retired (or "early retirrment") but still in close contact with my friends there and keeping on supporting DRM.
F6AJW is offline   Reply With Quote
Old 02-02-2009, 13:13   #9
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,804
Hi Jacques and all,

Good to see you back in the Forum again, Jacques. I am not really in the target area either, and like previous transmissions from ISS towards Africa, it is not optimum for my QTH. However, the 2nd transmission was better than the first.

Btw, the IR was very messy here with up to 12 peaks visible...

I didn't listen too closely, but TDP went silent just before 09 UTC, then about 20 minutes later the music started again. Around 0927 UT suddenly the language changed to French.
Attached Images
File Type: png 11875-090202-0822-0958-HED362.png (43.4 KB, 355 views)
File Type: png 11875-090202-1221-1358-HED362.png (43.0 KB, 345 views)
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html

Last edited by Digger : 02-02-2009 at 13:49.
Digger is offline   Reply With Quote
Old 02-02-2009, 13:24   #10
Sixten
Registered User
 
Sixten's Avatar
 
Join Date: Jun 2005
Location: N59 37' / E17 50' Marsta Sweden
Posts: 2,894
11875

Hi Jacques and all.


Perfect DRM propagtion this time strong and stabile, but only 2min music from this 1h 54min. transmission .
Attached Images
File Type: png 11875-090202-1204-1358-SIXTEN .png (43.1 KB, 359 views)
__________________
Sixten SM5DAJ

http://sm5daj.se
Sixten is offline   Reply With Quote
Old 02-02-2009, 13:28   #11
mitajohn
Registered User
 
mitajohn's Avatar
 
Join Date: Nov 2002
Location: Athens - Greece
Posts: 6,736
Feb. 02 (11875 kHz)

Hi all,

I received this transmission today with a very good signal (40 - 60 dBuV). I was expecting a higher SNR figure...

It started with no audio for a while and at 20.96 kbps BR/P stereo and TPDradio label. Then, music started. The sound was good (~13 kHz BW) as well as the IR. I was monitoring until 08:45 then I left it unattended to the end of both transmissions. Sometime (?) the label changed to TDF-RFI and 18.28 kbps BR/ mono. Find attached the results.
Attached Images
File Type: png 11875_090202_0801_mitajohnW.png (35.6 KB, 372 views)
File Type: png 11875-090202-0801-1400-mitajohn.png (35.7 KB, 339 views)
__________________
Regards, John.
mitajohn is offline   Reply With Quote
Old 02-02-2009, 13:46   #12
Ager
Registered User
 
Ager's Avatar
 
Join Date: Jun 2004
Location: Finland
Posts: 69
Jacques, I too, hope to read more from you, now onwards!
Yes, I seem to be in a worse position in this test here in the North. I guess I received much less that Sixten. There were several breaks in both transmissions. Anyway, much and long sequencies were quite listenable.

Previous TDF/CRI tests brought just perfect results here.

I guess, am normally a little aside from target areas, but anyway with lots of good daily receiving opportunities. So DRM listening is not going to loose its fascination.
Ager is offline   Reply With Quote
Old 02-02-2009, 18:45   #13
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,804
Hi,
5865 became 5875, and BBC on that frequency at 19:45 UT is 40 dB stronger than the DRM signal ...
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html

Last edited by Digger : 02-02-2009 at 18:47.
Digger is offline   Reply With Quote
Old 02-02-2009, 18:58   #14
mitajohn
Registered User
 
mitajohn's Avatar
 
Join Date: Nov 2002
Location: Athens - Greece
Posts: 6,736
Feb. 02 (5875 kHz)

Hi all,

Impossible to be received due to strong co-channel QRM.
__________________
Regards, John.
mitajohn is offline   Reply With Quote
Old 02-02-2009, 20:09   #15
Sixten
Registered User
 
Sixten's Avatar
 
Join Date: Jun 2005
Location: N59 37' / E17 50' Marsta Sweden
Posts: 2,894
Feb. 02 (5875 kHz)

Hi all.

Good signal stringt from start but bad DRM propagtion and BBC 500Kw strong give influence . 2000UTC BBC QRT now better reciption . Signal stringth up to 74dbuV 2030UTC . Perfect last 40min.
Attached Images
File Type: png 5875-090202-1930-2057-SIXTEN .png (50.2 KB, 329 views)
__________________
Sixten SM5DAJ

http://sm5daj.se
Sixten is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Forum Jump


All times are GMT. The time now is 19:53.


Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.