Posts tagged ‘HP8642B’

LogiMetrics A300/S 2 – 4 GHz Traveling Wave Tube Amplifier – Repaired

In my previous blog posting, I did a teardown of a LogiMetrics A300/S 2 to 4 GHz Traveling Wave Tube Amplifier (TWTA). After doing the teardown, my focus immediately turned to troubleshooting the unit and hopefully restoring the unit back into working order again.

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OOK/FSK Modulation Using PE42420 RF Switch

I recently bought a few Peregrine Semiconductor‘s PE42420 RF Switch evaluation boards on eBay. The PE42420 is an absorptive SPDT RF switch that operates between 100 MHz and 6 GHz. Besides the obvious use as a single pole double throw RF switch, we will take a look at using it as an RF modulator due to its fast switching time (~300 ns) in this post. A video of the experiments discussed in this post can be found towards the end. Continue reading ‘OOK/FSK Modulation Using PE42420 RF Switch’ »