sdr

Hello, after I figured out how to use Sdrtrunk and became more educated on the matter, I decided to create 2 calls nodes (one for each site), and 1 feed to fill a void in my areas BCFY feeds. Everything has been smooth sailing, but recently ive been running into problems after playing around...

Hello, I live not too far away from the Ottawa airport (MacDonald Cartier international YOW) and sometimes can pick up ATC talking and such. I decode fire pages with PDW, and today, I attempted to decode ACARS messages with PDW because it supports that protocol. There are three different...

Hello. I'm new to scanning and newer to SDRs, but I do actually have 75% of it figured out. I know how to use sdr++, pdw, sdrtrunk, satsagen, dsd+, and all that stuff. After I figured out sdrtrunk, I discovered it was comical Ly easy to create a broadcastify calls node and a feed. So I did both...

I have 2 RTL v3 dongle's, on sdr trunk. Michigan MPSCS system. I have a site that has freq on 774mhz and control and other voice channels are up to 853,855mhz. Question is how do I keep getting getting "tuner unavailable" bulls*** from coming up. I need help understanding how to get this to get...

Hi, I output the audio from GQRX to DSD for decoding using UDP. nc -l -u localhost 7355 | dsd -i- -o pa:2 command is used to launch DSD and pipe in the UDP data. The connection is working fine and I am listening to a DMR amateur radio station. However, I found out that the inlvl is usually more...

Hello, I am receiving the attached error messages while running SDR to monitor a P-25 system using Windows PC. Does anyone know what it means? The decoding is still working as far as I can tell. Thank you

Wondering if I should buy a Samsung Galaxy A7 tablet to run SDR++? Thanks.

Hey Guys, I was wondering if someone could assist me with removing this talk group with the “P” as it is irrelevant and I do not want it being scanned. Any help would be appreciated. Thanks!

I recently built a mobile radio scanner to monitor P25 trunk communication systems based on OP25 (Boatbod). I have been working on the project for 3 years and am finally happy to say that it's done! I am using a NooElec SMArt v3 dongle as hardware, Raspberry Pi 3B for signal processing, 3.5"...

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...

RTL2832U R860 V.3 SDR# V.1.0.0.1872 I have downloaded both the CTCSS and DCS decoders, placed the .dll file in the SDR# Folder, and written the code into the .xml document, but neither one will work to decode. Any thoughts on how to get these working?

I've recently gotten an RTL-SDR v3 dongle and have been trying to listen around and had a few questions. Getting right to the point, I'm trying to use SDR-Trunk to listen to UCA but I'm unable to get any data from the control channels an I don't quite know why. To my knowledge I should have...

Hi at all, I have now tried Openear 1.7.0 on two PCs (one with WIN 7 in the final version, one with Win 10 incl. all updates) on neither PC is it possible to start Openear. It seems that MSVCR.dll files are always missing. First it was the MSVCR100.dll, after I installed it Openear did not...

A question in the round and to the SDR experts. I am new in the matter of SDR reception (with an Airspy mini and SDR#) and I am looking for a Plug-In to make the SDS readable at the Tetrafunk. Is there such a Plug-In for SDR# ? Gladly also another which runs under Windows. Many thanks and...

when i try to hear a radio or a frequency like 93.5 or any other and i go to shortwave for example the 93.5 radio is in shortwave (see picture) and the frequency changes when i go "up" in the frequency, and when i go above 200mhz appear like in the screenshot at 416mhz, the antenna can be near...

I'm curious of it's possible to B-List individual radio's on a P25 system with OP25 Boatbod. A few members of a very special FD are just a bit much to listen to, so I want to block the UID's of their radios.

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...

Good day everyone. First off I would like to thank this excellent community for all the help they offer people. I would like to also thank all the open source developers in regards to SDR and GR. I have a question for the community and hopefully someone out there may have an answer. I have...

Hi all. Based in Gloucestershire, UK. Having spent the last few days looking around POCSAG and Flex, there seems to be only two frequencies that contain anything. Literally anything: 153.025 and 153.350. Although these frequencies are busy - everything that comes through on PDW is up north...

Trade-offs: price -vs- headache factor (SDR dongles -vs- a real scanner radio). There is a lot of talk about hooking up multiple SDR dongles into hubs, using multiple power supplies, gobs of cabling, antenna splitters, with software configuration nightmares, etc. So my question is, how many...