DIY Doppler Speed Radar from Satellite Dish LNB – Microwave Radio Electronics

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Mod closeup pic:

Modifying a LNB from a TV satellite dish to transmit ~10ghz and mix the received signal with a local oscillator to measure and quantize Doppler effect on an oscilloscope.


Dustywitch says:

Please be careful using this, any form of radiating RF equipment is regulated by the FCC and RADAR is one thing which is highly regulated. Otherwise, this is cool as hell.

Do R/C! says:


Victor Levin says:

Awesome project! Very cool.

I’m also amazed you’re able to get a 11GHz signal through a through-hole cap!

Bret McDanel says:

once you have it more refined a bit, if you want to make it more accurate do what police do. use 2 tuning forks for different freqs, that way you have 2 shift references and know its accurate.

DJ says:

neat! Good job!

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