Steve, PolyPhasers are popular with Hams and commercial users with tight budgets, but they are the "economy line" as lightning and surge protectors go. Most cellular systems and professional installers prefer to use Huber + Suhner protectors, which cost two or three times what a PolyPhaser costs. I use them at all of my repeater sites, not only because they are waterproof and very robust, but also because the gas tube is easily replaced. The body of the typical unit is machined from a solid billet of stainless steel, and is completely reliable. More information is here: <www.hubersuhner.com/ie70/products/hs-p-rf/hs-rf-lightning-protectors.htm>
H+S products are distributed through commercial communications suppliers such as Tessco, Hutton, and Talley. I have no financial relationship with H+S, being just a satisfied customer. 73, Eric Lemmon WB6FLY -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of STeve Andre' Sent: Tuesday, August 17, 2010 7:53 PM To: [email protected] Subject: Re: [Repeater-Builder] Polyphaser Question This has been a great discussion. Eric, from the reading I've done it didn't seem to me that the Polyphasers were the best out there, but a European company whose initials were S + H, I think. Care to comment on the best ones, in your opinion? On Tuesday 17 August 2010 21:53:30 Eric Lemmon wrote: > Mike, > > Perhaps the best course is to choose the unit with the highest Joule rating > that meets your power level and frequency ratings. Do not buy a DC-blocked > unit if you don't need that feature, because the capacitor is usually the > first component to fail. Do not buy a used unit, because it was pulled > from service for a reason- probably because the gas tube has reached the > end of life due to multiple firings. Finally, be certain that you have a > robust grounding connection from the PolyPhaser to Mother Earth; do not > depend on the "green wire" conductor in the power cord to provide this > connection. > > 73, Eric Lemmon WB6FLY > > -----Original Message----- > From: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> > [mailto:[email protected] <mailto:Repeater-Builder%40yahoogroups.com> ] On Behalf Of Michael Ryan > Sent: Monday, August 16, 2010 11:51 PM > To: [email protected] <mailto:Repeater-Builder%40yahoogroups.com> > Subject: [Repeater-Builder] Polyphaser Question > > I notice when looking at the Polyphaser website, there are a wide range of > products, even a wide variety of items that on the surface appear to be > suited to my particular needs. I want to put a Polyphaser on my 220 > repeater. There are DC blocked and unblocked. I don't suppose it matters in > that area as there is no DC going up the coax. There are freq ranges, > 1.5-400 and 100 - 700 mhz, etc, etc.. Is it best to select a model that > places my operating freq somewhere in the middle of the unit's operating > range or does that matter as long as it IS WITHIN the range of the device > someplace? I need the protected end to be an N-female and the antenna end > to be and N-Male. Suggestions? - Mike -- STeve Andre' Disease Control Warden Dept. of Political Science Michigan State University A day without Windows is like a day without a nuclear incident.
