Archive for 16th November 2014

Testing an RTL-SDR Spectrum Analyzer

Using software defined radio such as the popular RTL-SDR (1, 2) as a spectrum analyzer is nothing new (examples can be found on HackADay and EDN). In this blog post, we will discuss some of the do’s and don’ts when using SDR as a spectrum analyzer and look at some measurements I took using the popular NooElec SDR based on Realtek‘s RTL2832U DVB-T demodulator chip and Rafael Micro‘s R820T tuner chip. Continue reading ‘Testing an RTL-SDR Spectrum Analyzer’ »