[time-nuts] Example of clocks interlocking with each other

Joe Leikhim jleikhim at leikhim.com
Sat Sep 14 14:22:45 EDT 2013


Microwave injection locking of Magnetrons with beam steering phased 
array. Lots of math!

http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=4&ved=0CDkQFjAD&url=http%3A%2F%2Fwww2.iee.or.jp%2Fver2%2Fhonbu%2F14-magazine%2Flog%2F2008%2F2008pdf-b%2F2008_09b_06.pdf&ei=vKY0UqywHIzs9ASOoYDAAQ&usg=AFQjCNGa_vBahvbPfxqNR8KzQ7RDzJV4tA&bvm=bv.52164340,d.eWU

Back in the day, Microwave Associates manufactured a pretty nifty GUNN diode based FM microwave link for video cameras that operated in the 12-13 GHz band. The transmitter GUNN oscillator was pumped from a crystal controlled multiplier chain. At the reciver, an AFC derived from the discriminator kept the link stable.

Interestingly to time-nutters, since it was FM system, you could insert a reference at the TX video input and extract it at the RX without any noticible error. For giggles I connected a G5RV antenna to a TX and a shortwave RX to the TR and could tune the SW band faithfully.

-- 
Joe Leikhim


Leikhim and Associates

Communications Consultants

Oviedo, Florida

JLeikhim at Leikhim.com

407-982-0446

WWW.LEIKHIM.COM



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