rtl-sdr

  1. P

    SDRTrunk RTL-SDR P25 P1 Hearing Unintended Traffic From Another City

    If I listen to the control frequency I don't hear anything but listening to "alt control 2" I start hearing audio. I'm also hearing traffic and seeing talkgroups from a neighboring city but those aren't even part of the talkgroup aliases I imported from RR? I'm using an RTL-SDR V3 + RTL-SDR V4...
  2. T

    Home Assistant Fire/EMS Tone Alert Automation

    Saw this post and it got me thinking about getting Fire/EMS alerts via Home Assistant for lighting automation (ex: When a call gets paged over radio, flash my room lights red) Updated post here. How to get Home Assistant to know when I have to respond to a call? Many volunteer first responders...
  3. AngWay

    What antenna configuration do i use?

    So i have been struggling to figure the answer out to this question for a while now. I bought the RTL-SDR kit and i don't know how to configure the antenna, videos on youtube have conflicting answers i see one person say use it one way and then another person in a different video says to use it...
  4. AngWay

    DSDPLus Fastlane and setting up scanlist

    I'm wondering if when i scan a set of frequencies with dsdplus fastlane. if i set it to scan only two different freqs will it miss less of the traffic compared to if i set it to scan say 6 different freqs or does the software go to the freqs that is currently active? is their a way to set it up...
  5. AngWay

    Question's on SDR related things?

    Hi i am having some problems with what i should buy and not buy. right now i have three RTL-SDR v4's and i'm using one to listen to a p25 control channel on OP25 and the other two are being used with dsdplus fastlane i have two instances of fastlane open and each one scanning a set number of...
  6. AngWay

    What is wrong with my RTL-SDR Dongle?

    Does anyone know what causes this. notice the bottom of the waterfall, That is normal it's showing the signal and everything is good and then about every minute or so i will see the top part of the waterfall do this. i have played around with the gain and everything else but nothing fixes it...
  7. AngWay

    SDRTrunk Not hearing talkgroups

    I have a question that i hope someone can help me with. i'm using two rtl-sdr dongles with sdrtrunk and i am able to lock onto 3 different control channels but i am only hearing these 4 talgroups. VSP Wyt 2 DWR 3 LAW DOC OP W Buch Sheriff 1 but according to my site their are a LOT more...
  8. AngWay

    SDRTrunk Raspberry Pi with SDRtrunk

    Just wanted to show everyone my setup i'm using a pi 4 with two dongles and a LNA going out to a J Pole on top of my house i'm running SDRTrunk i'm also testing out OP25. i'll attach pictures. Thanks to everyone on this forum that has helped me so much, it's really meant more than you know and...
  9. AngWay

    SDRTrunk and CC/VC

    Hello everyone hope your summer is going well mine is hot!!. I have some questions that i want to ask just so i can maybe understand some things better i am a complete newbie to all of this so please understand, But i'm using SDRTrunk to listen to my local police and EMS the only control...
  10. C

    RTL-SDR issue with SDR# v1920

    I upgraded my SDR# from v1919 to v1920 (Community Version with Plugins) on Windows 10. I used Zadig to re-load the drivers as usual. Windows sees the RTL-SDR and it works fine in other applications such as DSDPlus. When I start SDR# it shows the dongle in the Source dropdown as Generic...
  11. S

    What are some things to do with the HackRF Portapack?

    Hello everyone. I recently purchased a HackRF PortaPack device after watching many interesting YouTube videos of people using it to listen to various frequencies. I am curious to know what are some exciting things that I can do with this device. Any suggestions are welcome. For those who are...
  12. B

    Mac Compatible SDR Software for Motorola Type II Smartzone Omnilink

    Howdy all you much more experienced people with this realm than myself! I've recently been trying to scan local trunked frequencies using the SDR Trunk software on my M2 Macbook Pro with an RTL-SDR dongle. I love this software's ease of integration with Radio Reference, but I've been striking...
  13. MTL_Emergencies

    OP25 OP25 - Empty Voice channels

    Hello, I am running OP25 on Ubuntu 22.04 and when I run my local P25 Phase II system, empty voice channels appear when synced to a P25 Phase II patch talkgroup. I can confirm that the voice channels are not part of the system/site. I managed to record how these voice channels appear. I was...
  14. scannerloser

    Phoenix Police Scanner Live Stream 24/7 on YouTube

    Hey there, I created a dedicated channel to my RTL-SDR setup that monitors the Phoenix, AZ Police in addition to surrounding areas. It's in stereo to allow mulitple conversations at one time, and I was wondering what comments, suggestions, or criticisms anyone had on it? Currently it's a...
  15. B

    URH can't detect rtl-sdr v4 on windows

    hi im a complete beginner here. At first i install SDR# and i got it working there receiving signal and everything, and then i tried install URH cant seem to detect rtl-sdr. I've tried downloading the new config file from GitHub - rtlsdrblog/rtl-sdr-blog: Modified Osmocom drivers with...
  16. S

    Does RTL SDR V4 work with Pohtos Flow or GNU Radio?

    I recently got a rtl sdr v4 and like to use it for a DAB+ project, so I wish to use it with GNU Radio and/or Pothos Flow but unfortunately in both applications the soapy block failed to connect with the sdr dongle. Even after copying the recommended rtl-sdr driver *.dll in the proper place. Even...
  17. V

    SDRTrunk Transmission Upload Errors ONLY on Calls Ingest

    Good evening everyone, I have recently purchased an RTL-SDR and paired it with SDRTrunk to scan the Alaska Land Mobile Radio (ALMR) system in the Fairbanks North Star Borough. I am uploading via a Calls Ingest here as well as a 'regular' audio feed here. It is important to note, both feeds are...
  18. D

    RTL-SDR Scanning

    Recently purchased a RTL-SDR dongle and got it up and running on my PC using SDRSharp. I am picking up good strong analog signals after playing around with the software for a bit, which is great. Some fire departments in my area still use analog. Most police departments in my area however use...
  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. X

    No audio when using DSD+ to decode a walkie talkie

    Hey, I am just a beginner trying to decode a walkie talkie signal from the Icom ic-41s with an RTL-SDR, the SDR# software with the DSD+ plugin. I have already spend quite some time on this, but I still can't manage to get any audio out. I can see the signal coming in, and also in the wave viewer...
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