p25

New to this whole SDR thing, bought something off of ebay called a Skyfall SDR. It has 2 of the newer (v3's), not newest RTL's in it supposedly. I can pick up the hum and noise of the control channel. Stumped on how to do the decode, looking to see if anyone knows how to finish setting up Sharp...

Is there any SDR software which can demodulate H-CPM? If not, are there unique challenges which make this difficult or is it due to a lack of interest? Thanks.

BLUF: Why can I receive a P25 channel regardless of the modulation type (C4FM vs CQPSK) but while scanning the radio will only land on this channel if the modulation is set to CQPSK? ~~~~~~~~~~~~~~~~~~~~ I have an Astro Spectra that mostly gets used as a scanner for conventional channels, a...

I know that this thread will probably cause fights and be shut down, but that's not my intention... How come, in the US, public safety has for the most part ignored DMR tier II/III and instead gone to P25 phase 2? The spectral efficiency is the same, the audio quality is the same (as far as I...

Motorola guy here thinking about switching over to KW. I've been eyeballing the NX5x00 line because of the ability to do dual deck single head install. The way it is now in my truck I have to remote mount units (one UHF and one VHF) so that I can utilize both bands at the same time monitoring...

Hi everyone, I've been using the boatbod version of OP25's rx.py to listen to Seattle's PSERN with no major issues for some time but wanted to see if I could improve the performance by adding a second SDR and moving up to multi_rx.py. However, I am not hearing any audio and the decode rate has...

Hey Guys, does anybody tried to virtualize Motorola Trunking Controller like Smartnet, CPX2000, MTC etc. ? The Controller is Sparc Hardware with Solaris 6. So virtualization could be possible with Qemu. However, I fail because of the network interface that a real controller has. Has anyone...

Can anyone explain how dividing talk groups between the Priority Talk Group List and the Non-Priority Talk Group List works? If there is a voice call ongoing from a talk group in the non-priority list, and a new voice call from a TG in the priority list starts, will the radio actually...

Hello, everyone! This is my first post, I wanted to ask for some advice getting my scanner (BCD 996P2) programmed with the VIPER system for North Carolina. I have ProScan as well and it is activated, and am a premium member of RR. I have programmed the system extensively before, but the VIPER...

I have been monitoring some unknown talk groups in the Albany County P25 system and have come across talkgroup 21381. The talkgroup is broadcasted on the Albany Metro Cell/Simulcast and has a very unique talkgroup because all of the other talkgroup ids start with 1 and this starts with 2 and is...

Hello, on my 436HP and SDS100 I have repeater find activated. I just got a hit for 866.5875 which is under my cities system, Ottawa P25 Phase 1. Why would I all of a sudden get a random repeater hit? I'm monitoring this system all day. I'm not sure I understand, does this mean a new tower was...

https://fb.watch/mjnCDi60I5/?mibextid=cr9u03 Event celebrating NJSP 3yr 61 Million dollar Radio Upgrade

I apologize i have read many threads but I’m having difficulty figuring out if I’m misunderstanding something or just doing it wrong. I was previously a software and hardware engineer so I know my way around software but the terminology is throwing me. Unfortunately I suffered from a minor strok...

i did a search but didnt see anything, Has anyone created a Suffolk County NY P25 unit id list? Specifically each units radio id converted to the actual unit using that radio I have started creating my own list and keep adding to it every day with the help of my G5 and the voice record function...

Bonsoir tout le monde. Après des moments épuisants et difficiles au cours des deux dernières années et de nombreux voyages dans le monde, je recommence enfin à travailler sur la mise à jour des bases de données dans les régions de la Côte-Nord et du Labrador Ouest. Je prévois faire un voyage de...

I have recently been listening to the NYSP talkgroups on the Albany County P25 system and have not heard any action. I have also tried listening to the analog frequencies for troop G but also had no luck hearing anything. Is anybody else monitoring these frequencies/talkgroups and do you hear...

I heard that Paudling County is going to be switching to a p25 system by the end of the year. I believe it will be their own and they will not be joining Cobb, not sure of any more details but its what I heard. Also another county will be joining them possibly Gordon County. But Paulding is...

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There are many ways to phrase this question but... How come p25 scanners of the mid 2000s had no issues with picking up simulcast back then, but have those issues now? What has changed with simulcast? More towers maybe? Give me the history!

I'm VERY confused by all this. The RR Database says phase II, but from what I heard recently that the state uses phase I or most of the state uses phase I. So...what is it?