#trunking — Public Fediverse posts

Pleased to announce that the DMR Tier 3 trunking mode is now available in the MMDVM software stack, thanks to Jonathan G4KLX.

New documentation for setting up a trunking base station with MMDVM software is available at https://qradiolink.org/docs/MMDVM/dmr-trunking.html

#DMR #trunking #MMDVM

3.
- The MMDVM-Multi program written as per above, using #libliquid and #SoapySDR. It can be used with the #PlutoSDR, #LimeSDR family, Ettus #USRP bus devices, and hopefully soon also the #SXceiver which has become very popular recently with hams due to the MidnightBlueLabs TETRA stack

- The release of MMDVM-IQ by G4KLX means that a new, completely distributed #DMR #trunking stack is possible, using only UDP messaging protocols instead of various hacks on top of UDP, ZeroMQ and virtual PTY

1.
It's been a very busy few months for me, here are some progress updates that may be relevant to some people:

- #DMR #trunking code in #MMDVM, MMDVMHost has been almost entirely upstreamed, this means I can stop maintaining my forks now

- DMRGateway code for the Homebrew DMR Trunking Protocol has also been upstreamed but it's waiting for more people to test it

- Added support for the LimeSDR-mini, LimeNET-micro and Ettus USRP to the newly released MMDVM-IQ

The preferential call (priority call) functionality needs to be enabled in the #trunking controller for this to work (screenshot of option attached).

I don't keep it enabled on my repeater usually because it's annoying (the announcement replaces one voice frame in the payload channel).

But I hope someone might find this useful.

As a reminder, the whole trunking base station stack is open source, so anything can be implemented (within reason).

#DMR #hamradio

Demo of preferential calls in the #DMR #trunking system (Hytera calls these priority group).

Start: both radios subscribed to the parrot TG, Parrot is medium prio in the call priorities on radio 1.

I request TG 91 via DGNA on radio 1 (I have to do this is because it's not programmed in the same scan list as parrot on my radio).

TG 91 becomes active and I listen it. Then I initiate a call to Parrot on radio 2, and radio 1 now switches to this preferential call.

#trunked #radio #hamradio

Hytera HM785 #digital #trunking RSSI indication, private calls
#DMR

Hytera HM785 #digital #trunking #DMR

With some delay due to unforeseen issues, finally release 0.2 of the #DMR tier III #trunking controller GUI is available now.

You can download a snapshot of this release at:
https://codeberg.org/qradiolink/dmrtc/releases/tag/0.2

The main feature this release adds is partial support for the Homebrew DMR Trunking Protocol, which is currently implemented only by the Brandmeister network.

More information is available in the documentation:
https://qradiolink.org/docs/MMDVM/trunking.html

Pi 5 and SDR Team Up for a Digital Scanner You Can Actually Afford https://hackaday.com/2024/02/10/pi-5-and-sdr-team-up-for-a-digital-scanner-you-can-actually-afford/ #raspberrypi #RadioHacks #SDRTrunk #trunking #digital #RTL-SDR #scanner #P25 #Pi5 #sdr

Pi 5 and SDR Team Up for a Digital Scanner You Can Actually Afford - Listening to police and fire calls used to be a pretty simple proposition: buy a s... - https://hackaday.com/2024/02/10/pi-5-and-sdr-team-up-for-a-digital-scanner-you-can-actually-afford/ #raspberrypi #radiohacks #sdrtrunk #trunking #digital #rtl-sdr #scanner #p25 #pi5 #sdr

Serious Vulnerability in European Trunked Radio System - Trunked radio systems can be difficult to wrap one’s mind around, and that’s parti... - https://hackaday.com/2023/07/26/serious-vulnerability-in-european-trunked-radio-system/ #infrastructure #vulnerability #trunkedradio #radiohacks #security #trunking #radio #scada #tetra

New blog post about modding the scanner software to make it play back audio faster:
https://igmrlm.blogspot.com/2023/02/how-to-make-trunking-recorder-play.html
#Howto #hacking #Radio #hamradio #trunking #scannerRadio #scanner #javascript #coding

@Diggler67 Luckily I fell a sleep before I could do any damage to my reputation! #trunking

Just got back from the pub. Let's see what kind of trouble I can get into on Mastodon. Drunk tooting #trunking?

OILERS SUCK :Oilers: #Trunking #SmytheDivision

Just enabled #trunking on the port to my #proxmox server, thinking it would be a total pain, and as soon as I set my trunk native VLAN to the subnet where my management IP is, it just worked.

so painless!