Introduction The use of a bias tee was discussed in a couple of blog posts previously. The primary use of a bias tee in an SDR is to power a …
Read moreChaining Software-defined Radio accessories with a Bias Tee
An RF filter is a hardware device that is used to limit signals in certain frequency bands while allowing signals of interest at other frequencies to pass through. Filters are …
We wrote about Bias Tees and their applications within the context of Software-defined Radios in a previous post. The primary use of a bias tee in SDR is to enable …
In Part 1 of this article, we covered RF-related precautions on the transmit and receive sections of a Software-defined Radio. In this article we will cover other precautions including Mechanical …
Read moreHow Not to Break your Software-defined Radio (SDR) Hardware – Part 2
Software-defined radio (SDR) can be easily damaged if proper care is not taken during use. In part one of this article series, let’s take a look at the most important …
Read moreHow Not to Break your Software-defined Radio (SDR) Hardware – Part 1
A bias tee is one of the most useful Software-defined Radio (SDR) accessories you have likely never heard of. When receiving signals using a SDR, we have written about the …
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 …
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 …
Read moreShould I place a Low Noise Amplifier Before or After a Filter?
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 …
Read moreAn Introduction to Low Noise Amplifier Specifications
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 …