rtl-sdr

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...

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...

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...

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...

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...

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...

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, 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...

Hello all, I am running OP25 on a Pi 3B and sometimes OP25 bugs. I was able to catch that in the stderr file this is what I found: 09/23/23 17:23:10.515841 [0] releasing: tg(50003), freq(772.256250), slot(1), reason(duid15) 09/23/23 17:23:11.738840 [0] voice update: tg(50003), rid(0)...

Hi there, I am very new to the subject of SDR, so please be gentle! I'm based in the UK. I'm getting some work done to my roof, and in the next few days I have an opportunity to change/upgrade my TV aerial. I've been pondering a project for a wee while, to use a Raspberry Pi to tune into our...

Check out my RTL SDR pole i have in my office at work to listen to Mississippi MSWIN while im at work. I found a pole at home I had in some amazon portable photo studio in a bag that held a light. I have two omni antennas and one yagi antenna on this pole along with 2 RTL SDR dongles. I have a...

Is it possible to listen to multiple talkgroups with a single rtl-sdr or are you restricted to 1 talkgroup at a time. Could someone give me a little info on this please?

Thanks to a lot of people who helped me along the way, I have successfully restored the memory image to a damaged RDL-SDR device. Attached is a .PDF file showing the steps I followed. If the procedure is unclear, please suggest changes.

Greetings: First of all, I do not know if I should have placed this thread either in the "Antennas" thread or in the "SDR" thread. If I placed this in the wrong thread, I apologize. My logic was that I am specifically wanting to discuss those micro small SMA antenna connection points on the SDR...

In my last shack, I had everything in one Rack (Box) an 8U Black Woodgrain Rack (24"hx21w"x16"deep) which took up the whole left side of my corner desk, reducing my workspace. Great for the radios/scanners not good for desk space. In this new change, I found smaller narrow standard rack boxes...

Hello all. I've recently had time to get back into SDR after a few years and I'm having some issues with my new tuners and software. The SDR setup consists of a Windows 8.1 workstation with two tuners, the first a Nooelec NESDR v4 RTL-SDR (820T) and another NESDR XTR (E1000). The first time I...

I had an RTL-SDR.com V.3 dongle up and running on Windows 10. Then I installed a FlightAware Pro Stick plus dongle, it runs great! I can't seem to use them simultaneously though. I know they are both essentially rtl-sdr dongles on the inside. How do I run them both simultaneously? Is there a way...

Hi Everyone, Sorry for what feels like a dumb question. I have a (1) RTL-SDR connected to my MacBook (I have another spare SDR if needed). I am starting to use the SDRTrunk Software and hope to move my feed over to this software. My area's police department is on a single P25 frequency. I cannot...

I just got my sdr a few days ago and while scrolling through the spectrum i found some strange signals. It's a continuous transmission and it's not digital or at least not something dsd can decode. Does anyone know what this is?

Hi all, I've done a lot of searching to find any resolutions to a similar issue but am still having problems using Unitrunker and my two new RTL-SDR dongles (https://www.amazon.com/dp/B011HVUEME?psc=1&ref=ppx_yo2_dt_b_product_details) to run as both a Fixed and as a Scanner. While running this...