SDR News

RTL-SDR Upconverter Options

April 13, 2013 admin

Upconverters give the rtl-sdr the ability to receive frequencies below it’s minimum frequency. This allows reception of things like AM broadcasts, ham radio signals, weatherfax, international radio and much more. There are dozens of upconverter designs and commercial products that work with the rtl-sdr. Luckily to help you choose one, blogger and amateur radio hobbyist KF7LZE has [...]

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RTL-SDR used as a Cheap Real Time Spectrum Analyzer

April 12, 2013 admin

The rtl-sdr dongle can be been used as a super cheap $20 real-time spectrum analyzer. This is great as commercial spectrum analyzers can run from hundreds to thousands of dollars. First of all, SDRSharp and other SDR software packages are essentially spectrum analyzers themselves. They all have real time frequency spectrum and waterfall viewers. They [...]

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SDR Touch brings RTL-SDR to Android

April 11, 2013 admin

SDR Touch is an Android app which allows the rtl-sdr dongle to be used on an Android device. A USB OTG (on-the-go) cable is required to connect the android device to the tv dongle. The blurb on the app authors website reads (SDR Touch) Turns your mobile phone or tablet into an affordable and portable software [...]

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RTL-SDR Tutorial: Decoding Digital Voice (P25, DMR, NXDN, D-STAR) with DSD

April 11, 2013 admin

The RTL-SDR software defined radio combined with SDRSharp and a program called “digital speech decoder” (DSD) can be used as a radio scanner to easily and cheaply listen to unencrypted digital radio voice conversations. Digital radio voice communications are becoming more commonly used in the radio spectrum. This is due to the various improvements offered over [...]

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Analogue TV with RTL-SDR

April 11, 2013 admin

A user on the SDR# Google Groups forum has posted a program based on ADSB# called TVSharp, which can be used to watch analogue PAL and NTSC TV using the rtl-sdr dongle. Download TVSharp directly here (Mirror 1) (Old Version Mirror 2 (with source)). The rtl-sdr as a software defined radio actually does not have enough bandwidth to [...]

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