RadioReference on Facebook   RadioReference on Twitter   RadioReference Blog
 

Go Back   The RadioReference.com Forums > Computer Aided Monitoring and Programming > Software Defined Radio


Software Defined Radio - A forum for general discussion of software defined radio (SDR) receiver equipment.

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1 (permalink)  
Old 08-09-2018, 2:20 AM
Member
   
Join Date: Apr 2002
Posts: 271
Default Streaming/recording entire P25 system w/AirSpy & DSDplus

Has anyone set up anything since the Super Trunking Scanner a few years ago? Technology has progressed since then and may be easier/cheaper to implement now?
Old demo: Super Trunking Scanner: SVRCS [BETA]

There are three P25 systems within 5MHz (769.93125 to 774.84375) that would be awesome to archive and stream any unencrypted audio.

I'm thinking of buying and remotely-mounting an Airspy R2 through a Raspberry Pi or Intel NUC and pulling multiple VCOs off via Ethernet using FMPA and DSDplus or something like that... what I don't know how to/can do is decode multiple frequencies simultaneously and send them all to individual MP3 files.
Reply With Quote
Sponsored links
  #2 (permalink)  
Old 08-09-2018, 6:11 AM
Member
  Premium Subscriber
Premium Subscriber
 
Join Date: Mar 2007
Location: Talbot Co, MD
Posts: 1,140
Default

Quote:
Originally Posted by polkaroo View Post
Has anyone set up anything since the Super Trunking Scanner a few years ago? Technology has progressed since then and may be easier/cheaper to implement now?
Old demo: Super Trunking Scanner: SVRCS [BETA]

There are three P25 systems within 5MHz (769.93125 to 774.84375) that would be awesome to archive and stream any unencrypted audio.

I'm thinking of buying and remotely-mounting an Airspy R2 through a Raspberry Pi or Intel NUC and pulling multiple VCOs off via Ethernet using FMPA and DSDplus or something like that... what I don't know how to/can do is decode multiple frequencies simultaneously and send them all to individual MP3 files.
I believe you may be referring to something like trunk-recorder
Reply With Quote
  #3 (permalink)  
Old 08-09-2018, 8:59 PM
Member
   
Join Date: Dec 2016
Posts: 60
Default

Dsdplus records all decoded transmissions. You also have the ability to record individual transmissions by using either the command -Pwav for individual recordings to wav files or -Pmp3 I think for mp3 individual transmissions.
Reply With Quote
  #4 (permalink)  
Old 08-10-2018, 1:01 AM
Member
   
Join Date: Apr 2002
Posts: 271
Default

Thanks, I'll give trunk-recorder a try. I do like the reliability and audio quality of DSDplus though.

Yes, I've set up a dual-dongle CC/VC DSDplus setup, but that only gives me one talkgroup at a time, if there's another option to do multiple VFOs!?
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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 3:43 PM.


Powered by vBulletin® Version 3.8.2
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
All information here is Copyright 2012 by RadioReference.com LLC and Lindsay C. Blanton III.Ad Management by RedTyger
Copyright 2015 by RadioReference.com LLC Privacy Policy  |  Terms and Conditions