What is the highest radio frequency used for astronomy? Is it 3,438 GHz?

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September 2nd 07, 08:29 AM posted to sci.electronics.basics,rec.radio.shortwave,rec.radio.amateur.antenna

Jasen Betts Jasen Betts is offline

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What is the highest radio frequency used for astronomy? Is it 3,438 GHz?

On 2007-08-30, Tam/WB2TT wrote:

I am curious here. At some point you have to switch from metallic conductors
and antennas to lenses and other optics. Any idea what the highest frequency
RF amplifier works at?

I've heard of X-ray lasers.

Bye.
Jasen

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