[TowerTalk] LightningProtectionDevicesPolyP, Response

[Gary Schafer]

Well, I may be wrong too! I haven't been associated with Polyphaser for
about 10 or 15 years. The original company was sold several years ago and I
had heard that some of the products were made cheaper than the originals. 
A couple of others said that the units they had were all solid state also. I
hadn't paid that much attention to their products in the past several years
so they may well have changed them. But the original coaxial products had
gas tubes in them for many years.

73
Gary  K4FMX

> -----Original Message-----
> From: Steve Davis -Davis RF Co. [mailto:sdavis at davisrf.com]
> Sent: Saturday, September 12, 2009 10:10 AM
> To: towertalk at contesting.com
> Cc: garyschafer at comcast.net; jimlux at earthlink.net
> Subject: Re: [TowerTalk] LightningProtectionDevicesPolyP, Response
> 
> Gary, my apologies, I stand corrected.  I had a "slip" in my old brain's
> thought process.  I was thinking about Poly P's introduction of the GT
> series (Gas Tube) that, as I noted, was a less expensive version that they
> introduced around 1-1.5 years ago ( i think that is close, even though
> their
> spec dwgs are dated around 2 years ago).  They list for $ 45 vs. the
> typical
> IS series around $ 65.   My mistake despite writing about their Gas Tube
> products years ago.   Too bad I can't upgrade a chip in my skull !!
> 73,   Steve, K1PEK
> DAVIS RF Co., Div of Orion Wire Co., Inc.
> 
> >
> > Message: 4
> > Date: Fri, 11 Sep 2009 16:57:11 -0500
> > From: "Gary Schafer" <garyschafer at comcast.net>
> > Subject: > To: "'Steve Davis -Davis RF Co.'" <sdavis at davisrf.com>,
> > <towertalk at contesting.com>
> > Message-ID: <92B4AD15AB4B401387132BAA16BDF6D2 at YOURC36DD1B81E>
> > Content-Type: text/plain; charset="US-ASCII"
> >
> > Polyphaser has used gas tubes in their coax protection devices from day
> > one.
> >
> > The reason for the series capacitor is to allow the gas tube to fire
> > before
> > enough energy is passed into the circuit following the protector. If
> there
> > was  no capacitor and the radio or cavity following the protector had a
> > coil
> > in its circuit that provided a DC ground then the gas tube would not
> fire
> > until a large amount of energy passed into the coil and into the radio
> > etc.
> >
> > 73
> > Gary  K4FMX
> >