How Not to Break your Software-defined Radio (SDR) Hardware – Part 1
We discussed a few different Software-defined Radios on the market in a previous post. Once you get your SDR and have it up and running, there are a few precautions …
What is Software-defined Radio used for?
Software-defined Radio technologies have become increasingly accessible these days with low-cost devices ranging in price between $20 and $300 and offering varying levels of performance. Here is a list describing …
Should I place a Low Noise Amplifier Before or After a Filter?
Most Software-defined Radios operate over a large frequency range. The RTL-SDR for instance can operate from 500 kHz to 1.7 GHz while the HackRF can operate from 1 MHz to …
An Introduction to Low Noise Amplifier Specifications
A Low Noise Amplifier (LNA) is an electronic device that amplifies weak signals at its input without adding significant noise to the output signal. Such amplifiers are typically used in …
FM Notch Filters – why you need one with most SDRs
FM radio was invented in 1933 and is one of the most popular broadcast technologies out there. FM broadcast signals in most places in the world occupy the frequency range …