p25

  1. P

    Old P25 decoding

    Why was P25 phase I decoded with so many artifacts in the audio? this even goes for P25 radios of the 2000s. Was this the first attempt at digital voice decode? Why did it take so long to improve it?
  2. G

    FleetNet Mapping Questions.

    So, lately I've been looking for help with some of the things I'm seeing within Zone 1 and 2 of the FleetNet P25 system here in Ontario. I've been helped by members with things to try etc (big Thanks). I'm Located near Peterborough and should have coverage of the Peterborough, Pontypool...
  3. Crocker_B

    Harris P5500 - SYSGRP# 0 Issue

    Hey Everyone, got a bit of a Tech Special today. So I received a Harris P5500 in the mail that seems to have a slight issue. The radio feature menu is showing "SYSGRP#0," where normally it would say SYSGRP#65535. Ive already gone through some troubleshooting steps like upgrading the feature...
  4. n1moy

    SDS100/SDS200: sds200 P25 distorted audio

    Perplexed by the flawed reception of a conventional P25 public service repeater. SDS200 receiving over a ~6.8 mile route with no sizable obstacles. [low-lying hills] No scan priority, weather alert, attenuation or filters employed. Firmware: Main Version 1.23.03 Sub Version 1.03.02 In my...
  5. U

    DMR vs P25 - Encryption standards and software vs hardware encryption

    Hey all, I'm really hoping this doesn't turn into a flame war or anything, I'm just trying to better understand the key differences in implementation. Question I'm aware that companies like Anytone, Hytera, Motorola, etc. offer encryption in their DMR radios, and I know that Anytone and Hytera...
  6. G

    Bell FleetNet Help

    Need help... Sorry, I'm new to digital scanning and P25 systems in general. Located in the Peterborough County area etc.. I have been trying to figure out which sites in Zone 1 & 2 to select in my favourites lists to speed up my talk group scanning times, eliminating areas/sites too far to...
  7. K

    Turn XTS into a scanner

    Hello. Hopefully this is the right place for this. So, basically, I am a radio nerd in Michigan and want to listen to MPSCS. I understand that MPSCS is fully P25 phase II capable, but all talkgroups are phase I in every county except Oakland. Making this thread I'm assuming they'll stay phase I...
  8. P

    MPSCS Talkgroup questions

    Sorry for making another post on here, I have another question again. 1. If 13406 is labeled for school busses, what school, or district even uses it? Does this TG even belong to Allegan or has it been misplaced in the wrong county? I have never once heard this TG active ever since loading it...
  9. W

    Questions and Concerns on P25 and Simulcast - New SDS-200 Owner

    Just a heads up, I am very new to scanners and radios so if I make any mistakes I'd like you to please inform me. Background: I recently bought an SDS200 because I've heard really good things about them. I live in the Charlotte, NC area and have looked at the Charlotte UASI page quite a bit. I...
  10. D

    Broome County NY Channels

    I am having trouble getting channels for a uniden bcd996p2. I used radioreference and imported into the freescan. Before hand I paid the company I bought it from to program. It just had 1 channel at the bottom. Now it has multiple channels and some channels come and some don't. I was wondering...
  11. P

    Static between P25 transmission?

    Does anybody else near or in Allegan County hear what sounds like static clipping in at the beginning and end of each transmission like analog? I mainly hear it from dispatcher units, It almost sounds like a cross-patch. So is it just my radio or is something going on with our system and their...
  12. P

    Unication G4 Programming for CVCRS

    Hello, I have recently purchased a Unication G4 pager and I am attempting to program it to work on the CVCRS system. I live in Campbell county and it works fine on Campbells 2A site. I have noticed that when in Campbell County I cannot hear any of the traffic in Lynchburg, Bedford, or Amherst on...
  13. *SOLD* Uniden SDS-100 in Box w/Accessories NXDN/DMR unlocked / Remtronix Antenna - Free Shipping

    *SOLD* Uniden SDS-100 in Box w/Accessories NXDN/DMR unlocked / Remtronix Antenna - Free Shipping

    Uniden SDS-100 in Box All Accessories included UNLOCKED DMR/NXDN - big savings having that already done. Upgraded Sandisk Ultra 32gb SD Card for more recording time Upgraded Remtronix Antenna better for 700/800Mhz. (include original) Full Size - Color Printed Manual No scratches on unit...
  14. E

    Jim Wells County Texas - SDR to listen to 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...
  15. panoboy

    H-CPM demodulation using SDR

    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.
  16. S

    C4FM vs CQPSK - Scan Behavior

    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...
  17. K

    Why P25 phase II instead of DMR tier 3?

    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...
  18. daugherh

    Dual Deck Setup Options/Questions

    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...
  19. K

    No Audio OP25 (boatbod) Raspberry Pi

    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...
  20. D

    Motorola Trunking Controller Virtualization

    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...
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