Dsdplus frequencies p25 I'm trying to use DSDPlus (by itself) to track and decode a P25 Phase I FDMA digital system. Frequencies file ; for system Identification. In this case the Willoughby Hills / Waite Hill PD talkgroup is being decoded by DSDPlus. , FMP24, FMPA, SDR#, etc May 2, 2018 · Hello. This version of FMPA can be TCP linked to DSDPlus v2. Over on Reddit we've seen mention of an upgraded Digital Speech Decoder (DSD) program, named DSD+. I have changed it to -fa to reflect auto decode. frequencies file. The park frequency would be 771. Add the two frequencies and then average them by dividing by 2. Download DSDPlus and learn how to use it. See full list on wiki. If the freqs are convention, the simple decoder will work fine. DSDPlus fastlane is DSD's paid upgrade which allows subscribers to access to the latest releases of DSDPlus early. event). That is a new feature for DSDPlus. ; These prefixes would have to be paired with entries in the DSDPlus. Digital radio voice communications are becoming more commonly used in the radio spectrum. I’m told you don’t need the -F2. It wants OTA channel number, TX RX frequency and sort order. Normally two dongles are required to follow a P25 trunking system. Now that a voice receiver is programmed, the site window will hightight the frequency in green that the voice receiver is tuned to. P25data file is auto-populated from the OTA data received while decoding a P25 control channel. TXT for additional documentation. rv”, tells DSDPlus that we expect voice. Apr 10, 2019 · Adding the -b9. One DSDPlus instance monitors the trunking channel, and this tunes the second FMP+DSD instance to the frequency currently active in the trunking system. CC and VC signal sources and CC DSD+ and VC DSD+ instances running - CC side can be any P25 control channel signal source feeding CC DSD+ (tapped scanner, RTL dongle, Airspy, etc. Some of these I don't think I use. DSDPlus. Since this initial fix, I also discovered that both of my RTL-SDRs were a bit off frequency. frequencies Sep 5, 2017 · Maybe I am missing something, but is there a way to log all frequencies broadcasted by the CC of a P25 Trunking system somewhere (DSDPlus. Jun 6, 2019 · DSD+ 2. Voice channels do appear in the event log, but I would like to get an history of CC and SCC frequencies when I am monitoring new sites. READ MORE . My question is, can someone show me an example how to write the frequency file for a P25 phase 1 system. For giggles (and my sanity) I changed the frequency of the FMP24 to 151. In the P25 system, the LRRP will hopefully be transmitted in the Input frequencies of the system. Jul 20, 2018 · The frequencies can easily be received with an RTL-SDR, but a decoder is required to be able to actually listen to the voice. bat to tune and decode the control channel. Get instructions and tips for setting up the console, virtual audio cable, and more. frequencies file;; this data has to be manually added to the DSDPlus. I am using DSDplus 1. Enhance your software defined radio experience with DSDPlus. 50625 and highest frequency used is 773. com. Demodulated audio can be passed to older DSD+ versions (and other programs) via VAC or VBC. dsdplus. Jun 28, 2017 · The basic process involves running two FMP instances which is a program in the DSDPlus suite that connects to the RTL-SDR's and receives the signal. 5 option corrected most of my P25 Phase II reception issues. I've figured out how to get FMP-CC. 101 using FMP. The original DSD is a program that can be used in conjuction with a SDR receiving program such as SDR#, and an audio piping program like VBCable to decode digital speech, such as P25 and DMR Apr 11, 2013 · The RTL-SDR software defined radio combined with SDRSharp and a program called 'digital speech decoder' (DSD) can be used as a radio scanner to easily and cheaply listen to unencrypted digital radio voice conversations. frequencies or . g. December 25, 2015 ; DSDPlus; No Comments; DSDPlus 1. 40000 ((769. This is due to the various improvements offered over traditional analogue voice radio Nov 18, 2018 · I’m now been told that is exclusive to P25 Phase 1 decoding. You may add P25 sites to the DSDPlus. It's also adding a leading zero to the SysID, 0348 instead of displaying BEE00. This seems to be working as it should as far as I can tell. radioreference. I restarted DSDPlus, no change. frequencies file by you; Apr 20, 2023 · Something doesn't look quite right in the event log window. exe (free) or FMP24. frequencies file by you; Aug 10, 2015 · Can someone please share a dsdplus. bin file before restarting your batch file. If you see a T to the right of the site Name below, this indicates the site is operating with a TDMA CC. 29375) / 2). P25data file;; frequency data for non-P25 trunked sites has to be present in the DSDPlus. wav towerserv process Nov 10, 2017 · Discover how to decode digital audio formats with DSDPlus, a Win32 app that reliably decodes various digital audio formats on VHF, UHF, and 800 MHz. e. P25data file;; manually tune to P25 control channels to auto-build the DSDPlus. Try it with or without. Thanks Nov 13, 2018 · DSDPlus; No Comments; FMPA 2. DSDPlus must also be set to decode DMR/ MotoTURBO, since DSDPlus can do much more than just DMR — DSDPlus documentation indicates that it decodes D-STAR, except audio. 120 P25 Phase II trunktracking and voice decoding notes Requirements - all files in this update MUST be copied to your FL DSD+ folder - a full CC plus VC trunktracking DSD+ setup, i. 10. If its a trunked system, its best to use SDRTrunk, DSDPlus and program properly as a system. Vac sends the signal from sdr# to DSDPlus and will decode the digital. I deleted them (and saved the file), no change. Feb 9, 2025 · ; If multiple systems are in the DSDPlus data files, they can be identified by adding a ; prefix to each system, e. the system ID would be 4096:1. We also need to tell DSDPlus Dec 22, 2024 · Either use sdr# simple p25 decoder or download and install virtual audio cable, and download DSDPlus. Oct 5, 2023 · For a P25 system, manually tune to a control channel and DSDPlus will collect the frequency information for that site and neighboring sites. exe (Fast Lane) that allow you to use DSDPlus to actually trunk track. P25 systems should display as wwwww. Digital voice is now commonly used by many Police and emergency services as well as business radio. I would question the bit mapping of -_11 on your START DSDPlus line and would suggest that you remove it and then be sure to delete the DSDPlus. siteLoader if you use that feature. 29375 for the site I want to receive. . com May 22, 2019 · Over on YouTube Corrosive from the SignalsEverywhere channel has uploaded a new video showing us how to set up P25 trunking and decoding with DSDPlus Fastlane and only a single RTL-SDR. You should get at least the coordinates if all works well, but the UID, direction and speed are incorrect in my case, and hopefully the DSDPlus team will take care of it. frequencies Jan 26, 2024 · For a P25 system, manually tune to a control channel and DSDPlus will collect the frequency information for that site and neighboring sites. VC (Voice Channel) DSDPlus -fa -rv -o1 -i20002 -OM NUL That should get you going. Over on the SignalsEverywhere YouTube Nov 16, 2023 · Try to do the same with a P25 system. Oct 20, 2024 · ; frequency data for P25 trunked sites has to be present in the DSDPlus. 010 (Oneida County P25 P2) and it worked perfectly. frequencies file is a complete waste of time. wav audio_{talkgroup}_{timestamp}_chN. 101 released. For other trunked systems, you'll have to manually add frequency information to DSDPlus. sss where W = WACN and S = SysID. Otherwise, if you are using SDRSharp as your input with a virtual cable, you can't trunk track -- you can only park on one frequency. frequencies file by you; Sep 4, 2019 · ; frequency data for P25 trunked sites has to be present in the DSDPlus. This does not at all need to be 100% accurate and Jan 8, 2020 · ; frequency data for P25 trunked sites has to be present in the DSDPlus. 7 Download This version of FMPA adds support for the Airspy Mini. The latest version of DSD+ can now to found at www. So, I tweaked the PPM value for both of them. Dec 12, 2014 · In the Radio Reference database screenshot above, the lowest frequency used is 769. “ CC (Control Channel) DSDPlus -e -fa -i20003 -rc -OM NUL Just copy this fella as is. Feb 19, 2025 · It's the combination of FMP. frequencies config for a P25 system? I'm currently interested in monitoring one site in particular on this system : Metro Area Radio Cooperative (MARC) Trunking System, Various, Colorado - Scanner Frequencies I guess what I'm missing is the OTAChannel number Oct 27, 2021 · I just rebuilt one of my PC's with a clean install of Windows 11 using a backup of my original C:\DSDPlus folder for the rebuild without any difficulties. Software like SDRTrunk and DSDPlus can decode P25 Phase 1, but at the moment the only software that is capable of decoding P25 Phase 1 AND 2 is a program called OP25. 50625 + 773. Dec 12, 2014 · Setup shown with Unitrunker and DSDPlus. See Notes. Dec 25, 2013 · Update: This post is now very old. I see an endless stream of Sync frequencies shift spectrum to channel 1 frequency shift spectrum to channel N frequency TCP port 40000 channel 1 dibits TCP port 40000+N channel N dibits UNIX pipe dsd –Digital Signal Decoder (Open source software with modifications)::::: nc dsd audio_{talkgroup}_{timestamp}_ch1. DSDPlus 1. Yes, putting the RTL-SDRs on the exact frequency of the control channel and the voice channels really does help. 101 was just Mar 27, 2019 · DSDPlus is a popular piece of software often used with RTL-SDR dongles to listen to unencrypted digital voice signals such as P25 and DMR. Mar 18, 2016 · Hello again. Jan 6, 2020 · Adding P25 frequencies to the DSDPlus. To enable DMR we need to pass the “–fr” parameter. Feb 28, 2025 · However, OP25, DSDPlus Fast Lane and the BlueTail Technologies P25RX can decode these TDMA control channel sites. exe / DSDPlus. bat and CC. 348, which is unusual. May 27, 2020 · It makes no difference if I have the frequencies in the DSDPlus. 1, where 4096 is the prefix. It also can also decode P25 Phase 1 and NEXEDGE. kkfpt tfwf yelykpd ozp mxctuazj qlqc isbbt zgrx njd bvusee uywrtl qokxro bsslfe edc xgt