Can I have a copy of the photo, it's nice to learn something from it.

 

 

73

W4CSO   Camilo

 

 

 

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of David Jordan
Sent: Tuesday, August 17, 2010 4:45 PM
To: Repeater-Builder@yahoogroups.com
Subject: RE: [Repeater-Builder] Polyphaser Question

 

  

I recently opened up a Polyphaser unit we used on one of our remote sites.
it covered both 2m and 70cm.  We were experiencing poor receive at the site.
Replaced the unit and receiver sensitivity is once again hot.  Anyone want
pics of the insides respond direct and I'll ship you the photos.not much to
see. a gas tube and what looks like a surface mount resistor in series with
the gas tube.

 

73,

Dave

Wa3gin

 

  _____  

From: Repeater-Builder@yahoogroups.com
[mailto:repeater-buil...@yahoogroups.com] On Behalf Of Oz-in-DFW
Sent: Tuesday, August 17, 2010 4:37 PM
To: Repeater-Builder@yahoogroups.com
Subject: Re: [Repeater-Builder] Polyphaser Question

 

  Polyphasers have a shunt protection element.  It usually fails and becomes
leaky so you get a loss/VSWR indication.  It can fail open or short.  If
it's open, there is nothing to detect.  






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