There is even a branch that is open source (last I knew) now called the simpleSA that is based off the original tinySA design. Ham Radio Crash Course has a video also regarding: Here’s a link with the newer videos noting how to use for better performance: TinySA can also be used as a signal generator so with two tinySA’s you can make a tracking generator.

With Spektrum or GRC, from what I’ve done, you can get a slow sweep so to have a wider bandwidth at the cost of sampling rate with the RTL-SDR’s. Small and stand alone operation too… no computer or portable pack required or ~-70db noise floor. Yesterday there was an auto attenuate firmware upgrade. Works well below -30dB so consider using with attenuation or signals of interest. Significantly better bandwidth and a lower noise floor ~100dB for the frequency range spec. Posted in Tool Hacks Tagged nanovna, spectrum analyzer, tinysa Post navigation If you only need audio frequencies and you want novelty, try some ping pong balls If you have a modern scope it may already do this function, or you might be able to do a software solution.

shows a few oddities that he didn’t like, but overall, it seemed like a good value. There are some limitations, of course, but the price is right. But at this price, having a dedicated instrument might be worth it to you, especially if you don’t care about frequency below 100 MHz.

Rechargeable battery allowing a minimum of at least 2 hours portable useĪ lot of cheap scopes and PC-based scopes can do spectrum analysis, too, of course, so this isn’t as exotic as a VNA.

Connected to a PC via USB it becomes a PC controlled Spectrum Analyzer.

A built-in calibration signal generator that is used for automatic self-test and low input calibration.

When not used as Spectrum Analyzer it can be used as Signal Generator, MF/HF/VHF sinus output between 0.1MHZ-350MHz, UHF square wave output between 240MHz-960MHz.

Input Step attenuator from 0dB to 31dB for the MF/HF/VHF input.

Color display showing 290 scan points covering up to the full low or high-frequency range.

Switchable resolution bandpass filters for both ranges between 2.6kHz and 640kHz.

Spectrum Analyzer with two inputs, high-quality MF/HF/VHF input for 0.1MHZ-350MHz, lesser quality UHF input for 240MHz-960MHz.

Is it worth it? Watch ’s video after the break for his opinion. Now you can get a $49 spectrum analyzer to go with it.

The NanoVNA made network analyzers cheap enough for almost everyone.

Ebay record and play spectrum analyzer