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General Category => General Radio Discussion => Topic started by: Fansome on August 05, 2012, 2220 UTC

Title: [UDXF] Military looking at communications at 1Terahertz
Post by: Fansome on August 05, 2012, 2220 UTC

[UDXF] Military looking at communications at 1Terahertz

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Radioman390@cs.com

Time to trade in your Icom R-7000 ? I wonder what propagation characteristics there will be at these extremely high frequencies>

http://www.darpa.mil/NewsEvents/Releases/2012/07/31.aspx

Title: Re: [UDXF] Military looking at communications at 1Terahertz
Post by: zackers on August 09, 2012, 1934 UTC

I'm building amateur radio equipment for 47 and 78 GHz. Maybe I will make it to 120 GHz eventually. Power is REALLY expensive up there, and I don't expect to get more than a handful of microwatts out of my equipment. That should be good for a few miles, though.

People I know who have made gear for 300 GHz and above say it isn't a lot different than using a modulated flashlight or laser. A 1 foot diameter parabolic reflector has a lot of gain.