Yup, huge variation by application. Some gas tubes, some MOVs, some resonant stuff.
This stuff has a finite life. They have some pretty information on their site: http://www.protectiongroup.com/knowledgebase On 8/17/2010 7:14 PM, WA3GIN wrote: > > > The units are probably different depending on whether they are HF, > VHF, UHF, or 2.4Ghz, etc. > > ----- Original Message ----- > *From:* Chuck Kelsey <mailto:[email protected]> > *To:* [email protected] > <mailto:[email protected]> > *Sent:* Tuesday, August 17, 2010 4:58 PM > *Subject:* Re: [Repeater-Builder] Polyphaser Question > > > > Wasn't there a capacitor too? Seems like there was in one I saw open. > > Chuck > WB2EDV > > > ----- Original Message ----- > *From:* David Jordan <mailto:[email protected]> > *To:* [email protected] > <mailto:[email protected]> > *Sent:* Tuesday, August 17, 2010 4:44 PM > *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 > > > -- mailto:[email protected] Oz POB 93167 Southlake, TX 76092 (Near DFW Airport)
