What is this?

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motorola_otaku
Posts: 1854
Joined: Tue Jan 13, 2004 7:03 am

What is this?

Post by motorola_otaku »

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I picked a couple of these up thinking they might be cute little bandpass filters, but they appear to have no attenuation at all from VHF up through 900 MHz. Google returns nothing at all on the part number, and Andrew's on-line documentation is pretty useless. They almost look like lightning arrestors in construction. Anyway, if it helps, I'm pretty sure they came out of hybrid power combiner networks.
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Bill_G
Posts: 3087
Joined: Thu Sep 17, 2009 5:00 am

Re: What is this?

Post by Bill_G »

It's a harmonic filter.
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motorola_otaku
Posts: 1854
Joined: Tue Jan 13, 2004 7:03 am

Re: What is this?

Post by motorola_otaku »

Cool, thanks. Useless for my purposes but luckily cheap (a whole $2 apiece.)
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grandnational
New User
Posts: 7
Joined: Sat Feb 20, 2010 2:24 am
What radios do you own?: Motrac, Mastr Pro, Kokusai, NC

Re: What is this?

Post by grandnational »

Yep, definitely a harmonic filter. Most likely from a related isolator setup. Nice filters if you need 800 meg stuff. Nice parts to change as you want, too!
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SlimBob
Posts: 911
Joined: Thu Dec 18, 2003 11:38 am

Re: What is this?

Post by SlimBob »

I was gonna say a z-matcher. Looks like the piston caps can be reused.
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