[TowerTalk] Can Y'all Translate - Contrast With Polyphaser Please

[DavidC]

This text is from the http://www.cablexperts.com/ web page.  I am having
some
difficulty understanding the differences between the ICE product and that of
Polyphaser.
My application is pretty generic: tribanders, 2 and 440 beams, 2/440
vertical,
shunt-fed tower.  My connectors will all be UHF-type.  I need bulkhead
mounts.
I will be unlikely to run close to legal limit, most likely 500-750W at
best.  VHF and
UHF power levels are unlikely to significantly exceed 100w.

The Polyphaser devices I am considering are the IS-B50-LU and IS-B50-HU.
I understand that the latter tolerates higher TX power but does that mean it
also passes back higher transients before activating?

I'd like to use all of the same devices for HF through 440 for simplicity's
sake.

For RF coaxial cables, this patented 300-series arrestors offer a complete
nearly perfect blocking / shunting system for induced voltage. Whether by
direct or indirect lightning, wind, rain, snowfall I.C.E. arrestors are
continuously active, constantly draining transmission line center conductor
to ground. Providing solid protection for the station equipment and related
noise. All 300 series units feature heavy discharge Toroidal inductors used
to neutralize developed voltages on the antenna side of a central
high-voltage
blocking capacitor. Inert gas tubes are used to limit the natural back-EMF
voltages often induced across an inductor when large fast rising input
currents
are presented to the unit. Available models cover the frequency range from
as
low as 100KC to 500 MHz, and with many connector choices. High power units
feature TeflonŽ connectors, and low power units feature Phenolic-style
connectors. All may be mounted on flat surfaces, grounding bulkheads
(pictured
above), or through-mounted using dual stainless steel grounding screws for
mechanical fastening. Included 4 page manual.

Specifications: Attack time: 7 Billionths of a second maximum, depending on
induced waveform
Surge current: 50,000 Amps minimum, 8/20 us. industrial standard, 250 joules
Operating Temp: -40 to 250 F
Discharge Unit: Toroidal Inductor, solid conductor Back-EMF
GDU: 1000-2000V Glass Ceramic
VSWR: Less than 1.1:1 over rated spectrum Insertion
Loss: .1db typical Impedance: 50/75 Ohms

- Thanks! & 73, DavidC  K1YP in Hudson, FL

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