Transcript Software - Drivers

SDR’s
$20 SDR Receiver
SDR on the cheap
How this cheap SDR works?
 Input from an antenna is down sample,
filtered and passed to an analog to digital
converter (RTL2832U) the output is then
sent to the computer.
 All filtering, demodulation and other
processing is done on the computer.
 Audible output is then played back on the
computer speakers.
What you need?
 Computer with 1.0 GHz+ CPU
 USB Tuner based on RTL2832U chip
 Antenna
 Special Drivers
 Software
 SDRSharp
Compatible USB Devices
Mine came from: http://s.dealextreme.com/search/44326
Software - Drivers
Installation:
 Insert the USB tuner on a free USB port. Do not install anything from the CD
and let windows install drivers from Microsoft (they will be replaced later).
 Download the Zadig drivers from this location:
http://rtlsdr.org/softwarewindows
 Decompress and run the Zadig.exe file
Software – Drivers
 Click on Option and select “List All Devices”
 Choose the one that says “Bulk-In, Interface (Interface 0)”. This should be the
primary endpoint of your RTL device.
Software – Drivers
 In the box to the right of the green arrow make sure “WinUSB” is chosen not libusb or libusbk. The big button underneath will say “Replace Driver” or
“Reinstall Driver”. Before you proceed make sure the USBID matches the
VID/PID in the hardware table.
Software – SDRSharp
 Download the latest development version of SDR# from http://sdrsharp.com
 Unzip it to a folder – There is no installer which is nice for a change.
 Run SDRSharp.exe and you should see the following window.
Software – SDRSharp
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Set Radio to WFM (wideband FM)
Set the 'Front End' type from 'Other' to 'RTLSDR / RTL2382U'
Set the center frequency to (88,000,000) This is 88MHz.
If all is working the 'Front End' button should go from grey text to black text.
Click on Play.
Source of information
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RTLsdr: http://rtlsdr.org/
osmocomSDR: http://sdr.osmocom.org/trac/wiki/rtl-sdr
SDRSharp: http://sdrsharp.com/
GNURadio: http://gnuradio.org
RTL Source: http://wiki.spench.net/wiki/Gr-baz
Questions? / Live Demo
I hope I didn’t put you to sleep, thanks for listening.
Edgar/KC2UEZ