SDR: Ham It Up!

I want to bring your attention to the Ham It up v2.1 a high-quality RF (MF, HF) converter for Software Defined Radio (SDR) devices like the RTL-SDR DVB units and the Funcube dongle.  I personally believe its the best SDR upconverter currently available.  They’ve  even added a noise source circuit; However, you need to source a few extra components to complete the circuit. Why use an up-convertor? The RTL2383 + Elonics E4000-based DVB-T tuner…

Gnuradio – OSX Installation Guide

I briefly mentioned previously about using gnu radio on Linux or OSX.  Today I will walkthough the installation process on OSX. First install MacPorts if you have not already done so: http://www.macports.org. First install the rtl-sdr drivers: port install gr-osmosdr Now the latest version of gnuradio uses variants: port info gnuradio Password: gnuradio @3.7.1 (science, comms) Sub-ports: gnuradio-devel, gnuradio-next Variants: debug, docs, full, grc, jack, orc, portaudio, python26, [+]python27, qtgui, sdl, swig,…

SDR : Software Defined Radio

Recently, I’ve been busy playing with Software Defined Radio (SDR).  I was able to get my hands on one of these cheap TV dongles with the Realtek 2832U Chipset.  So what’s the big deal? A V4L/DVB kernel developer  Antti Palosaar, discovered that the chip allows transferring the raw I/Q samples to the host, which is officially used for DAB/DAB+/FM demodulation.The RTL2832U outputs 8-bit I/Q-samples, and the highest theoretically possible sample-rate is…