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 29-08-2010, 19:59   #1066
simone
simone
 
simone's Avatar
 
Join Date: Jan 2003
Location: Bad Salzschlirf, Hessen, Germany
Posts: 10,144
Quote:
Originally Posted by df9rb
The error message is:
Sound Interface Start, waveInOpen() failed. This error usually occures if another application blocks the sound in.
Any hints?

Bernd, DF9RB

Just a few ideas:

Is there another application using the sound card for the audio streaming?
Is the correct sound input selected (maybe change it using the command line options or edit the ini file)
Try an older version of Dream.

Simone
simone is offline   Reply With Quote
Old 29-08-2010, 20:06   #1067
stef
Registered User
 
stef's Avatar
 
Join Date: Apr 2010
Location: Ottenburg.Belgium
Posts: 118
Not good today low snr and tx drop out
Attached Images
File Type: png 17640_100829_1859_your_username.png (31.6 KB, 119 views)
stef is offline   Reply With Quote
Old 29-08-2010, 20:13   #1068
FritzWue
Registered User
 
FritzWue's Avatar
 
Join Date: Mar 2003
Location: 40km west of Muenster,NRW,Germany
Posts: 6,190
TX break at 18:56 UTC, TX intermodulation high, propagation OK, SNR very low at only 16 dB, good reception.
Attached Images
File Type: png 17640_100829_1850_DK6QI.png (30.7 KB, 125 views)
File Type: png 17640_100829_1955_DK6QI.png (56.5 KB, 125 views)
__________________
Friedrich.....DK6QI.....52N 07E
https://www.qrz.com/db/dk6qi/
FritzWue is offline   Reply With Quote
Old 29-08-2010, 20:37   #1069
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,779
Quite good reception. There was one TX break around 19 UTC. The SNR has dropped to lower levels again.
Attached Images
File Type: png 17640-100829-1819-1958-HED362@CH.png (39.6 KB, 119 views)
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html
Digger is offline   Reply With Quote
Old 30-08-2010, 15:07   #1070
df9rb
Registered User
 
Join Date: Jun 2004
Location: 150 km north of Munich
Posts: 484
Hello Simone,

at our club station I run a Perseus and a laptop. Starting Dream/Perseus locally, Dream runs without any problem.
From home I connect the laptop via Remote Desktop from Microsoft. Remote Desktop uses the soundcard and therefore
dream can t use it. Thats the problem. Meanwhile I had the idea to install a 2nd soundcard for Dream. I will try this.
The Perseus GUI has a "www button" for at least 6 months. But this button is not active until now....
I presume (knowing no details) that this button will activate a data transfer of the Perseus data from the remote laptop
to my home PC and the software itself will run on my home PC then. This could solve the Dream problem also.
(At the moment I see a graphic representation and hear the remote decoded audio on my home PC.)
I am playing around with this remote access for 6 months now and I don t want to miss is. The basic noise at our club station
is at least 10 dBs lower than at home and I enjoy the features of a 300 m long beverage antenna.

Bernd, DF9RB
df9rb is offline   Reply With Quote
Old 30-08-2010, 20:07   #1071
df9rb
Registered User
 
Join Date: Jun 2004
Location: 150 km north of Munich
Posts: 484
The last 15 minutes

Bernd, DF9RB
Attached Images
File Type: png 17640_100830_1943_DF9RB.png (26.0 KB, 133 views)
df9rb is offline   Reply With Quote
Old 30-08-2010, 20:07   #1072
stef
Registered User
 
stef's Avatar
 
Join Date: Apr 2010
Location: Ottenburg.Belgium
Posts: 118
Unnatended log bad decoding today
Attached Images
File Type: png 17640_100830_1754_your_username.png (30.2 KB, 119 views)
stef is offline   Reply With Quote
Old 30-08-2010, 20:12   #1073
mitajohn
Registered User
 
mitajohn's Avatar
 
Join Date: Nov 2002
Location: Athens - Greece
Posts: 6,707
Aug. 30

Hi all,

Bad results until ~19:20 then much better. A TX break noticed at 19:40.
Attached Images
File Type: png 17640_100830_1825_mitajohn.png (29.0 KB, 122 views)
File Type: png 17640-100830-1825-2000-mitajohn.png (35.9 KB, 133 views)
__________________
Regards, John.
mitajohn is offline   Reply With Quote
Old 30-08-2010, 20:32   #1074
FritzWue
Registered User
 
FritzWue's Avatar
 
Join Date: Mar 2003
Location: 40km west of Muenster,NRW,Germany
Posts: 6,190
Tonight the signal strength was very low with a minimum around 19:03 UTC.
The transmission started at very low snr, I verified that with a DReaM restart.
At 18:07 UTC someone pushed a switch and the snr was back at 24 dB.
At 19:00 UTC there was a carrier on frequency for a minute or two reducing readability.
In all very good that the snr is back at 24 dB ensuring good reception at low signal strength.
EDIT: ...and yes, there was a TX break at 19:40 UTC.
Attached Images
File Type: png 17640_100830_1759_DK6QI.png (31.5 KB, 125 views)
File Type: png 17640_100830_1814_DK6QI.png (72.2 KB, 125 views)
__________________
Friedrich.....DK6QI.....52N 07E
https://www.qrz.com/db/dk6qi/

Last edited by FritzWue : 30-08-2010 at 20:35.
FritzWue is offline   Reply With Quote
Old 30-08-2010, 20:41   #1075
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,779
I agree with the previous speaker, except that I did not notice any QRM around 19 UTC. My max. SNR peaked at 21.5 dB, which was better than yesterday.
Attached Images
File Type: png 17640-100830-1802-1958-HED362@CH.png (40.1 KB, 124 views)
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html
Digger is offline   Reply With Quote
Old 31-08-2010, 12:56   #1076
mathias_s
Registered User
 
mathias_s's Avatar
 
Join Date: Feb 2006
Location: Santiago, Chile
Posts: 73
Quote:
Originally Posted by FritzWue
Tonight the signal strength was very low with a minimum around 19:03 UTC.
The transmission started at very low snr, I verified that with a DReaM restart.
At 18:07 UTC someone pushed a switch and the snr was back at 24 dB.
At 19:00 UTC there was a carrier on frequency for a minute or two reducing readability.
In all very good that the snr is back at 24 dB ensuring good reception at low signal strength.
EDIT: ...and yes, there was a TX break at 19:40 UTC.

Yes, there was a TX break. It happens sometimes.
__________________
Mathias
mathias_s is offline   Reply With Quote
Old 31-08-2010, 20:04   #1077
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,779
>23 dB SNR tonight and at the end I recorded +38 dBuV from the antenna and >97% CDA. I hope they received it at least that well in Brazil too...
Attached Images
File Type: png 17640-100831-1801-1959-HED362@CHE.png (39.5 KB, 118 views)
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html
Digger is offline   Reply With Quote
Old 31-08-2010, 20:10   #1078
mitajohn
Registered User
 
mitajohn's Avatar
 
Join Date: Nov 2002
Location: Athens - Greece
Posts: 6,707
Aug. 31

Hi all,

After ~18:50 I got an almost perfect result.
Attached Images
File Type: png 17640_100831_1838_mitajohn.png (27.1 KB, 127 views)
File Type: png 17640-100831-1838-1959-mitajohn.png (34.2 KB, 124 views)
__________________
Regards, John.
mitajohn is offline   Reply With Quote
Old 31-08-2010, 21:46   #1079
FritzWue
Registered User
 
FritzWue's Avatar
 
Join Date: Mar 2003
Location: 40km west of Muenster,NRW,Germany
Posts: 6,190
Thumbs up

Not bad here too:
Attached Images
File Type: png 17640_100831_1813_DK6QI.png (30.5 KB, 115 views)
File Type: png 17640_100831_1929_DK6QI.png (38.9 KB, 121 views)
__________________
Friedrich.....DK6QI.....52N 07E
https://www.qrz.com/db/dk6qi/
FritzWue is offline   Reply With Quote
Old 01-09-2010, 20:06   #1080
Digger
Registered User
 
Digger's Avatar
 
Join Date: Mar 2005
Location: Shizuoka City, Japan
Posts: 9,779
A bit of tuning the TX made a big improvement about four minutes into the transmission. At the end the signal peaked at 41 dBuV here and the SNR was 22.6 dB at its best.
Attached Images
File Type: png 17640-100901-1756-2000-HED362@CHE.png (40.1 KB, 117 views)
__________________
Regards,
Terje

https://www.hobbyradio.se/en/drm/web....index_en.html
Digger 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 14:48.


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