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-   -   9950 kHz AIR India Tests to Europe from Khampur (http://www.drmrx.org/forum/showthread.php?t=1641)

dmei77 27-02-2007 08:17

9950 kHz AIR India Tests to Europe from Khampur
 
Hello everybody

I just got now the message that AIR (All Indian Radio) plans a DRM test transmission from this night forward 7 days from Khampur/New-Delhi.

Frequency: 9950 kHz
Local time (Delhi): 0115 - 0400
UTC: 1945 - 2230

Target: Europe

vijaybaleja 27-02-2007 08:22

DRM Test transmissin on the AIR Transmitter 9950 khz
 
Hello everybody

I just got now the message that AIR (All Indian Radio) plans a DRM test transmission from this night forward 7 days from Khampur/New-Delhi.

Frequency: 9950 kHz
Local time (Delhi): 0115 - 0400
UTC: 1945 - 2230

Target: Europe

Edit: Two Threads about the same transmission merged, Simone

simone 27-02-2007 15:05

1 Attachment(s)
Seems there was already a test this afternoon, received this when I tried to log RTBF.
Simone

carknue 27-02-2007 15:07

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I already logged a first test today. There was also a MOT Slide Show

mitajohn 27-02-2007 19:47

Feb. 27
 
1 Attachment(s)
Hi all,

With strong QRM always present I got the attached result until the signal disappeared. The sound was better than the first tests and no slides show in the MOT service.

f1tay 27-02-2007 20:15

2 Attachment(s)
Reception at Paris. Interference by Radio Taiwan International on 9955 kHz.
Daniel

f1tay 27-02-2007 20:17

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The QRM of RTI.

df9rb 27-02-2007 20:25

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Hello,

clear frequency in South East Germany. Some deep fadings -- terrible audio quality.

Bernd, DF9RB

carknue 27-02-2007 21:34

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Conditions were not so good today. Mostly a weak signal. There was a multimedia Slide Show detected, but no pictures were broadcasted. The wasted 0.5 kbps should be spent for the audio quality.

simone 27-02-2007 21:46

1 Attachment(s)
Similar results as Carsten, no files received from the MOT slideshow.
Simone

andy.chance 27-02-2007 22:02

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Strong AM signal on 9955 initially, this faded after 2100.
Andy

Funkerberg 27-02-2007 22:26

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Near Berlin not good results today.

Sixten 28-02-2007 19:10

Feb.28
 
2 Attachment(s)
Hi all.

AIR start very good today but after only 8min . propagation go very fast down. 9Mhz is too hi this time her in Sweden.

Waw signal come up again after 20min. So part2 log is 50min.
:)

df9rb 28-02-2007 20:15

Feb 28
 
1 Attachment(s)
Hello,

partly acceptable audio quality during the transmission in Hindi. Some level adjustments were done during the transmission - from much too low to overmodulated. Terrible audio quality after 21:00 during the English programm - every "s" sounded horrible

Bernd, DF9RB

carknue 28-02-2007 21:39

1 Attachment(s)
Reception was better than yesterday, but still no optimal space weather conditions. A longer TX break at the beginning. Sound quality was quite good at start, but later it went terrible. Still a slide show without pictures.

Funkerberg 28-02-2007 21:43

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the result is clearly better than yesterday. The audio quality is strong varying, not good

Owdjim 28-02-2007 21:59

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Hi All

Here is my automated logging of today's test on 9950 kHz from here in Wellington, New Zealand. I am at work during the test times :mad:, so I cannot yet comment on the audio quality.

Cheers, Chris

andy.chance 28-02-2007 22:18

1 Attachment(s)
Signal strength lower overall today. Varying audio level, very low or high and clipped.
Andy.

simone 01-03-2007 04:14

2 Attachment(s)
Not so bad last night, signal was a bit stronger from 20:30, except the last minutes, audio problems again last night.
Simone

aru 01-03-2007 05:01

Hi all,

Good signal in Venice last night with no drops into the audio.
There was a MOT Slideshow channel but empty.

bye,
aru

carknue 01-03-2007 21:36

1 Attachment(s)
Conditions were slightly better this evening. Very good reception except a 15 TX break in the middle. Sometime I heard a test tone. Sound quality was better than yesterday. Best results so far.

andy.chance 01-03-2007 21:42

1 Attachment(s)
Better results today.

simone 01-03-2007 21:47

1 Attachment(s)
Good results today, even improved after the brerak, MOT still not working :(
Simone

Owdjim 01-03-2007 23:27

1 Attachment(s)
Today's log from Wellington.

Cheers, Chris

Sixten 02-03-2007 05:25

1 Attachment(s)
Hi all..

Very poor propagation today . Befor 1900UTC was AIR strong on AM S9+20db but after 1930UTC fast down to noise.

DRM-OM 02-03-2007 08:48

Good reception of english part
 
2 Attachment(s)
Hindi had dropouts, english was ok.
Test tone for the first two minutes of the english news.

Comment: After a long time of not listening to DRM anymore because of
1. useless reception of BBC in the evening
2. useless content of DW in the evening
(I belong to the working part of the public)

this is/was a highlight making it worth to modify the receiver.

carknue 02-03-2007 21:41

1 Attachment(s)
A lower signalstrength than yesterday, but perfect results! Again the sound quality was better at the begining and later terrible!

Funkerberg 02-03-2007 22:06

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results today not yet perfectly, however of another QTH

DRM-OM 03-03-2007 06:44

good signal
 
1 Attachment(s)
but audio could be better

df9rb 03-03-2007 08:18

Feb 2nd
 
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Hi,

100 % audio, but partly very bad audio quality. The problem seems to be the digitalisation of analogue recordings.

Bernd, DF9RB

mitajohn 03-03-2007 08:34

Mar. 3
 
Hi all,

Not even a faint signal in my QTH...

f1tay 03-03-2007 10:22

1 Attachment(s)
Reception at Paris.
Daniel

Balazs 03-03-2007 17:32

My first DRM reception
 
1 Attachment(s)
Dear members,

I'm a beginner, this is my first message.

After a hard work I modified my ATS-818 with a Sat-Schneider mixer.

My antenna is a Degen DE31

Yesterday evening at 20:20 (UTC) it was my first DRM reception at 9950 !

I used Dream in my laptop through microphone connection.

I try to attach a picture.

Sorry if I'm not using the "conventional" type of attachments.

I will be happy to get any advice how to improve.


Best regards,


BalazsAttachment 29281

DRM-OM 03-03-2007 19:01

Hi, and welcome!
 
You could:
  • goto "View" "Evaluation Dialog" in dream
  • check the box "Log file" after entering the frequency of reception in the bottom center of the window
This will write a logfile (DreamLog.txt) of the transmission you receive in the folder where dream.exe is located: every minute the SNR and Audio quality is recorded.

Then you go to Carsten's homepage and download "DRMcalc".

In this program you can import the logfile and get the conventional type of graph which you can save by pressing the "capture" button.

Good luck!

Balazs 03-03-2007 19:31

Thank you for advices
 
Thank you Bernhard !


I'll follow your advices !

Balazs

DRM-OM 03-03-2007 21:33

... and here are today's results
 
1 Attachment(s)
which are not as good as the past days

df9rb 03-03-2007 21:34

1 Attachment(s)
Hello,

nearly 100 % decoded audio. Audio quality partly bad. It is not a good idea to compress the audio in a digital mode. For analogue transmissions it s OK but in DRM it decreases the quality!

Bernd, DF9RB

carknue 03-03-2007 21:38

1 Attachment(s)
Not so good as yesterday, but sound quality was better than yesterday.

PaulT 04-03-2007 00:15

1 Attachment(s)
Unattended log for AIR

simone 04-03-2007 06:08

1 Attachment(s)
Bad results last night.
Simone


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