• Effective immediately we will be deleting, without notice, any negative threads or posts that deal with the use of encryption and streaming of scanner audio.

    We've noticed a huge increase in rants and negative posts that revolve around agencies going to encryption due to the broadcasting of scanner audio on the internet. It's now worn out and continues to be the same recycled rants. These rants hijack the threads and derail the conversation. They no longer have a place anywhere on this forum other than in the designated threads in the Rants forum in the Tavern.

    If you violate these guidelines your post will be deleted without notice and an infraction will be issued. We are not against discussion of this issue. You just need to do it in the right place. For example:
    https://forums.radioreference.com/rants/224104-official-thread-live-audio-feeds-scanners-wait-encryption.html

Op25 on Odroid XU4

Status
Not open for further replies.
Joined
Jun 19, 2004
Messages
53
Location
Baltimore, MD
#1
Hello:

I am looking for a reasonably priced system to install Ubuntu and OP25 on to monitor a couple of P25 systems. I'm enjoying the computer-based scanning experience with DSDPlus on Windows, but it doesn't look like op25 will cross-compile (at least I don't see anyone having done it) on Win 7 or cygwin.

If I need to, I'll go the Intel NUC or Gigabyte Brix route (since I would like to put a portable system together), but that's more than the cost of a BCD436HP.

Does anyone know if the Odroid XU4 will handle op25? Basic specs: Dual CPU (Samsung Exynos5422 ARM® CortexTM-A15 Quad 2.0GHz/CortexTM-A7 Quad 1.4GHz), 2GB memory, USB 3.0/2.0, 10/100/1000 ethernet. Looks like no onboard audio, so that's one USB dongle, another for the RTL receiver, and one for wifi if needed.

Curious on people's thoughts. I imagine the slightly faster CPU, plus the addition of a second CPU, will offer better performance than the Pi 3, but I don't know if it's enough to make op25 work well.
 
Joined
Jan 6, 2013
Messages
54
Location
Central IL
#2
Check out SDRTrunk if you want to monitor P25 on Windows. Works quite well. In my experience it uses much less CPU than OP25, although much more RAM. I've been wanting to try these types of solutions on a single board type of computer myself but haven't gotten around to that. It will take a high end model to have a chance at it.
 
Joined
Jun 19, 2004
Messages
53
Location
Baltimore, MD
#3
Thanks. Unfortunately SDRTrunk doesn't work wit hthe screen reader I use to interact with the computer. Also, no phase 2 yet as far as I know. (I failed to include that in the original post).

I did end up picking up a XU4. Been trying to use the new, non pybombs, recipe to install op25. Unfortunately, the gnuradio in the repo is 3.7.2 and there is no gr-osmosdr. When I download the latest gr-osmosdr it complains that I need gnuradio 3.7.8. I need to fool around with it a bit more.
 
Joined
Jun 19, 2004
Messages
53
Location
Baltimore, MD
#4
I can't figure out how to edit my post, but I wanted to amend my earlier comments. I did actually get SDRTrunk working with a screen reader (sometimes the Java Access Bridge can be...finiky). So thanks for the suggestion.
 
Status
Not open for further replies.
Top