Software Defined Radio Projects - News - Tutorials

in this project tutorial how to build step by step with 15 Blocks easy NFM Frequency List Receiver with 8 channels selected and defined , using GNU-RADIO Companion under Win10 . 26:39 screen shots of all 15 steps with details . what i use : 1- wx gui main block 2- variable block : sample rate ( samp_rate ) = 2e6 3- variable block : down_rate = 250e3 4- wx gui chooser block : id= ( tuner ) default value= 446.1e6 choices= [446.1e6, 446.2e6, 446.3e6, 446.4e6, 446.5e6, 446.6e6, 446.7e6, 446.8e6] labels= ["ch.1", "ch.2", "ch3", "ch.4" ,"ch5" , "ch6" , "ch7" , "ch8"] type= radio buttons 5- rtl-sdr source block : ch0 freq= ( tuner ) , ch0 dc offset mode=auto ch0 iq balance mode=auto ch0 rf gain = rfgain 6- wx gui slider block : id= rfgain def value=15 min=0 max=45 num.steps=12 ( converter = integer ) grid pos.= 1,0,1,4 7- wx gui slider block : id=volume def. value=100 min=0 max=...

Step by Step How to install GNURadio , GQRX , and its components and adding system variables and paths in Win 10 64bit ! EASY to make GNU Radio , GQRX run ! .... you need to do this step by step : First Download GNURadio Components MWK from this link : https://drive.google.com/open?id=1L9v... https://drive.google.com/file/d/1L9vYcdiRKhM4LOx1c1ZBH0CrsYtLNK8a/view?usp=drive_open after that unzip it uxing .7z tool or any unzip tool , after that follow this : 1. install : vc_redist.x86.exe 2. install python : python-2.7.15.amd64.msi and make it install for all users 3. now you need to check your environment variables in your pc by right click in your pc icon then click in properties then click in advance system settings then click in Environment Variable then down in system variable box lock at Path and double click on it then you need to check if paython path added ,,,, if not you need to add these : click on new to add them like this : look at your payhon in c direc...

this is easy project today with simple 8 blocks How to Build your Own Spectrum Analyzer software using GNU-RADIO Companion under Win10 easy and simple ! 16:16 screen shots of all 8 steps with details . what i use : 1- wx gui main block 2- wx gui slider block : id= rf_gain default value=10 min=0 max=40 3- wx gui slider block : id= frequency def.v=868.4e6 min= 25e6 max= 1750e6 num steps= 1000 4- wxgui slider block : id= bandwidth def.v=2.4e6 min=1e6 max=3e6 num steps=100 5- osmocom source block : sample rate=bandwidth ch0 frequency=frequency iq balance mode= auto ch0 gain mode=auto ch0 rf gain= rf_gain 6- throttle block : sample rate=bandwidth 7- wx gui fft sink block : sample rate=bandwidth baseband freq= frequency fft size=1024 ref.rate=15 average= on 8- wx gui waterfall sink : sample rate=bandwidth baseband freq= frequency fft size=1024 fft.rate=15 average= on dynamic range=100 https://www.youtub...

this is long A-Z tutorial how to build your Own Advance NFN Receiver with many features ! , the main Feature of this GNU-RADIO Companion Software is Recording Activity direct to your PC so you can go it back later and hear all activity in your specific channel you want to monitor , and another thing is good ... its recording with auto pause , active recording Function with Squelch trigger .. its very good feature so you just record just active frequency then it pause automatically , after paused , when the frequency got active again the squelch trigger go off and the recording resume again in same audio file ! ..... now after the end of day ,, you just got a 1 audio files saved in your desktop with all activity in it without delaying or silent conversations ! . you will have many nice blocks in this gnu-radio companion , like you will have Rx Center , and Rx Offset , Rx Fine , RF Gain , Squelch level , Lp filter , Lp trans , vol , FFT waterfall or spectrum , you will be able to build y...