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Information about component

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Lisia

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I'm looking informations about the component in picture.
Could you help me?
Best regards
 

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Mark

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Googling around seems to be a Circulator used on 800Mhz and other High frequency systems
like Microwave up to 3.6GHZ.
https://en.wikipedia.org/wiki/Circulator

Fairly cheap on E-Bay.
https://www.ebay.com/sch/sis.html?_nkw=M+A+COM+RF+Circulator+7N034+750+950+MHz

I'm guessing on the old microwave/high band repeater systems used commercially you have two dishes/antennas up on a tower say
one facing West and another facing East connected to repeater downstairs.
You want to relay signal from say the Western facing dish to Eastern facing dish but only want to transmit/relay East.
That way you are not feeding back into your receive side west dish.
This device feeds signal only one way like a filtered duplexer in a Ham radio repeater.

Just guessing here as have never seen one before.
 
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