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 11-09-2018, 19:38   #1396
tpreitzel
Registered User
 
Join Date: Apr 2012
Posts: 2,249
Sep 10th, 2018 partial log ...

Frequency: +
Modulation: +
Codec: -

Except for the codec and Mode C, VoN's configuration is one of the best on the shortwave bands. Quality of VoN's remote production could be improved though.
Attached Images
File Type: png 15120-180910-1910-1929-TPR.png (39.9 KB, 36 views)
tpreitzel is offline   Reply With Quote
Old 14-09-2018, 09:24   #1397
AlexDRM
Registered User
 
Join Date: Aug 2018
Posts: 20
Hi Tom,
does Mode C 16-QAM provide a more robust signal than Mode B 16-QAM?
73,
Alex
AlexDRM is offline   Reply With Quote
Old 14-09-2018, 14:36   #1398
tpreitzel
Registered User
 
Join Date: Apr 2012
Posts: 2,249
Quote:
Originally Posted by AlexDRM
Hi Tom,
does Mode C 16-QAM provide a more robust signal than Mode B 16-QAM?
73,
Alex

Alex,

Theoretically, yes. Practically, no in my experience. Over the years, I've frequently witnessed wide variations between theory and practice. Even controlled experiments can NOT necessarily determine the overall experience of a human, in this case by a listener. I wish VoN would switch to Mode B while retaining 16 QAM modulation. Mode B works well for intercontinental digital broadcasts while allowing more capacity than Mode C.

Last edited by tpreitzel : 14-09-2018 at 14:44.
tpreitzel is offline   Reply With Quote
Old 15-09-2018, 22:50   #1399
tpreitzel
Registered User
 
Join Date: Apr 2012
Posts: 2,249
Sep 15th, 2018 log ...

Frequency: +
Modulation: +
Codec: -
Attached Images
File Type: png 15120-180915-1759-1930-TPR.png (37.1 KB, 26 views)
tpreitzel is offline   Reply With Quote
Old 16-09-2018, 12:57   #1400
Braccini
Registered User
 
Braccini's Avatar
 
Join Date: Aug 2016
Location: Brazil
Posts: 278
September 15th, 2018

Strong signal, until 19:30 UTC. MER MAX: 22 dB.

Video: https://youtu.be/Ew1OSi7COCg
__________________
Francisco Braccini
Cordial 73 from South of Brazil!
YouTube DRM Channel: https://www.youtube.com/c/FranciscoBraccini
Braccini 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 00:31.


Powered by vBulletin Version 3.5.3
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.