You need a HI-pot tester to check the protection devices. You crank up the voltage until they show a breakdown and see if it is breaking down at the proper voltage for the device. It will not harm them at all as the current is only a few micro amps..
Polyphaser used to market a small test set they called the FIST. They may still have it?? It was a small automatic hi-pot tester with a meter that read out in Kv. The voltage would rise to the breakdown point and stop. You read the meter for the breakdown voltage. 73 Gary K4FMX _____ From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Radioman Sent: Friday, April 04, 2008 8:49 AM To: [email protected] Subject: Re: [Repeater-Builder] Static on grounded feed line system. I replace the Polyphasers at the sites I'm responsible for every two years, or sooner if a direct strike is suspected. Just because they pass RF OK doesn't mean they're still doing the job efficiently. I believe it is cheap insurance even it means replacing a half dozen or more at one site. I have recently heard that there is a new series on the market which may not require replacing except after a direct strike. I need to do more research on those. Maybe someone here has info on those? Harry, W0OZL ----- Original Message ----- From: Paul Plack <mailto:[EMAIL PROTECTED]> To: [email protected] Sent: Friday, April 04, 2008 1:45 AM Subject: RE: [Repeater-Builder] Static on grounded feed line system. Sorry for being a few days behind on e-mail, but...don't those gas tubes need replacing eventually? Maybe after 8 years, they've given all once too many times to stay on the job.
