Search found 6 matches

by JayMore
Sat Sep 19, 2020 3:33 pm
Forum: RTL-SDR Discussion
Topic: rtl_fm for POCSAG : decode several frequencies
Replies: 2
Views: 1725

Re: rtl_fm for POCSAG : decode several frequencies

Answering to my own question : finally, it is better to use SDR# in Wide-FM mode (to cover 4 or 5 POCSAG channel), and PDW as the decoder. The trick is to check "Filter audio" to remove the DC component of the audio signal when the bandwith is so large. If you dont filter audio, PDW receive an audio...
by JayMore
Fri Aug 28, 2020 10:23 am
Forum: RTL-SDR Discussion
Topic: rtl_fm for POCSAG : decode several frequencies
Replies: 2
Views: 1725

rtl_fm for POCSAG : decode several frequencies

Hello All. Do you know wich parameters and wich version of rtl_fm I need to have the capability to include a bandwidth settings to the nfm demodulator or to accuracy scan several close POCSAG frequency ? I want to decode some POCASG signals, but the frequency are close to each other. I have transmis...
by JayMore
Thu Aug 20, 2020 2:21 pm
Forum: Troubleshooting Help
Topic: SDR# with rtl-sdr.com dongle v3 not changing frequency / freeze
Replies: 2
Views: 1301

Re: SDR# with rtl-sdr.com dongle v3 not changing frequency / freeze

It is a DELL 640M laptop (always plugged to AC), W7 32b, 2GB of RAM, Intel core duo T2050 1,6GHz. Quite old (more than 10 years!). I also noticed same behavior (freeze / frequency stuck) with the rtl_tcp driver, with the dongle connected on a Raspberry in the same network. This kind of lag can be, f...
by JayMore
Wed Aug 19, 2020 4:11 pm
Forum: Signal Identification Help
Topic: 433Mhz AM Signal
Replies: 2
Views: 4790

Re: 433Mhz AM Signal

Try the rtl_433 tool : it contains a lot of decoder (for weather sensor, garage remote control etc...). It has some tools to help analyze a signal.
It's a command line program for Windows or Linux.
by JayMore
Wed Aug 19, 2020 4:02 pm
Forum: Signal Identification Help
Topic: About 40 signals around 430Mhz in France (audio sample)
Replies: 3
Views: 1911

About 40 signals around 430Mhz in France (audio sample)

Hello All. Help me to identify this signals. I receive them all the day, from 430,600Mhz to 431,300Mhz. I'm located close to Paris, France, Europe. Nothing is clearly audible, when I go to USB/LSB or DSB I hear like someone is playing an old video game (sound like a jumping Mario on a Nintendo). It ...
by JayMore
Wed Aug 19, 2020 3:12 pm
Forum: Troubleshooting Help
Topic: SDR# with rtl-sdr.com dongle v3 not changing frequency / freeze
Replies: 2
Views: 1301

SDR# with rtl-sdr.com dongle v3 not changing frequency / freeze

I received my RTL-SDR.COM v3 a few days ago, and now i'm playing with it. I tried different SDR software, and SDR-Sharp seems the best, but I experience two majors problems (Windows 7 32b) : - Freezing : from time to time, I cant quit SDR#, or click on the STOP button. The application is frozen, I h...