Don, Thanks to some advertising hype being spread by manufacturers of so-called "surge suppressors", one might think that some kind of a surge suppressor is a "must-have" accessory. Not! A properly-designed electrical distribution system does not need such pathetically inadequate gimmicks. As a power engineer for Boeing, I see many instances of our IT people being pressured to install surge suppressors where they are completely unnecessary.
It is the responsibility of the utility to provide an AC power source that is appropriately protected with fuses and surge arrestors at the distribution level- usually 12kV or 22kV. Once inside the radio shack, each station should have a properly-grounded 120 VAC feed, along with appropriate protection of the antenna feedline. The highest priority should be to ensure that every conductor that enters each radio equipment cabinet has the *SAME* ground reference for protection. If you are converting the incoming AC to nominal 14 VDC floating on a battery, you should be okay. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of Don KA9QJG Sent: Wednesday, September 26, 2007 11:55 PM To: [email protected] Subject: [Repeater-Builder] AC Line Conditioner I Would like some input on What some are using for a AC Line Conditioner not a UPS , For a Repeater site that may not have the Cleanest AC Coming in . I do have a 50 Amp Astron with the Battery Backup on a Battery. I know that should Clean most things up, But I am a little concerned about what’s coming in. on the AC, I also have Great grounding and a Poly Phaser on the Antenna Side. Thanks Don KA9QJG
