Tuesday, March 24, 2015

Software Radio, part-2

How to run the RTL-SDR

Recently on the exchange of few components Om D.Prahba Karan, Prinicipal sir gave me 3 RF transistor and RTL-SDR dongle 2832. I feel it as a generous gift as rupee cost of my "rare
: components is not even half of this things. Thanks Sir. I acknowledge this generously.
Here is the picture.

Now software part came, there was the problem. The cd did not contained the software. Ok, the Miss Murphy took her tall lightly. I was waiting and waiting , thinking what to do. Then suddenly I related my problem to Om Aryaji. He immediately sent two links. Gave valuable inputs.

Download the Sharp SDR software.

I downloaded it for my 64bit windows machine. By using different software 32bit and Linux also supported.

Once this software is downloaded. Run it, beware it is just a downloading software so live interet is need. Please allow it to use internet to download further software components. It will take some time. After that your software is completely downloaded.

Now put the dongle into the usb port. It should be detected if you are lucky. Not detected no problem.

Now there is another link. Go to the zadig software. download it.

Remember without internet you will be not able to install the software. Now you can switch off  the internet.

Put out any other usb devices from the computer. Run the zadig you just downloaded. Then it will install the driver software for it. See that it detects the 2832....

If needed , just re-install the driver once again.

Now when you put the rtl dongle it will be detected for icons just see in the devices and printers. Connect  small antenna. Telescopic, wire or a proper antenna. See that there is no big RF source, transmitter near by, otherwise it will damage the dongle forever.

All well see the options on the software. There is not much tinkering we have to do. It will start running and some sort of audio will be coming from your computers speakers. Choose the modulations. If the FM station is available put the freq in the top heading of the screen. With the ARROW KEYS you can increase/decrese the freq more easily.

Now just play with it. You should be seeing something like this image. bingo.... you are receiving...

If some problem comes around just read the help section of the RTL page...
that's it falks we have re-invented the softwareradio use.

Thanks goes to D.Prabhakaran for dongle. Thanks goes to Aryaji, Om. Ashok Shankar Das for software and other inputs.

Prabhakaran sir lightly remarked that once you get use of it, you will be bored. Yes sir, that's right observation. But I will be using it for my personal entertainment qrp station or room bug monitor. Will also try to make the HF radio converter for it.  Just stay tune.... for part-3