Build Your Own Scalar Network Analyzer to Test Frequency Response of Filters and Networks

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https://www.electronics-lab.com/build-scalar-network-analyzer-test-frequency-response-filters-networks/

Radio Frequency Network Analyzers is one important tool required for testing the frequency response of filters and networks, but as we all know, buying a regular RF test equipment can be quite the expenditure. This was why hobbyist Stephen Merrifield, who after seeing the increased need for more RF testing capabilities as a result of […]

Arduino Network Analyzer

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https://www.electronics-lab.com/arduino-network-analyzer/

Brett Killion has published his Arduino shield a Network Analyzer on an Arduino Shield which covers from 0-72MHz. The network analyzer shield uses an Analog Devices AD9851 DDS chip clocked at 180MHz which will output a sine wave at any frequency from 0Hz and 72MHz. The DDS output is filtered with a Butterworth LPF and […]

DIY SWR and Power Meter

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https://www.electronics-lab.com/diy-swr-and-power-meter/

diycrap.blogspot.com has build a SWR and power meter based on Arduino Nano and LCD display: First of all, this SWR meter in this article is not exactly homebrew, as I based the circuit on the schematic in the excellent book Arduino Projects of Amateur Radio. Although I bought the book and respect the copyright of […]