I use Morgan Lighting Arrestors
N4vos
Sent from my iPhone
> On Dec 15, 2025, at 4:07 PM, n4zkf n4zkf.com <n4zkf@n4zkf.com> wrote:
>
> I had a pic in mine so it wouldn't let me send it.
>
> IS-50UX-C0. They make them in N connector as well. I have been struck in
> Florida while on the radio of this. The radio survived. Needless to say, the
> antenna was all over the neighborhood.
>
> 33 years in telecom and they were on every cell site we built.
>
>
> Dave Calder
> n4zkf@n4zkf.com
> dxc.n4zkf.com 7373
> www.n4zkf.com
> n4zkf/r 147.375 103.5
>
>
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Jim Lux
> Sent: Monday, December 15, 2025 3:02 PM
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] lightning arrester suggesstions
>
>
>
>
>
>
> Except that last time I checked (a few years ago), Polyphaser's units were
> NOT listed Antenna Discharge Units.
> For example, the popular 098-10113G-A surge protector is not labeled as a
> listed ADU. Nor is the fancier "HEMP tested" GPS band device.
>
> Which PP products are listed devices?
>
>
>
> On Sun, 14 Dec 2025 12:27:47 -0500, "Martin A. Flynn" <maflynn@theflynn.org>
> wrote:
>
> Whatever is selected, a valid UL listing is a must, and install it per NEC
> 810 and the manufacturers instructions.
>
> All of our commercial sites use polyphasers per the insurance underwriter.
>
> On 12/14/2025 12:15 PM, wa9wsj via TowerTalk wrote:
>
> 73 Martin
> W2RWJ
>> Hello Gents,
>>
>> I've been asked to help with a vhf/uhf station installation. I was asked
>> "what type, model etc of lightning arrester should I use"? The antenna is
>> only a fiberglass dual band vertical and will not be above the tree tops.
>>
>> This gent lives in the mountains/forest of Idaho.
>> I've never used one, I just disconnect coax when storms are predicted, but
>> can't expect him to do the same.
>>
>> So, what are the prevailing thoughts/suggestions about this?
>>
>> Thanks so much!
>>
>> 73
>>
>> Tom wa9wsj
>>
>> Sent with [Proton Mail](https://proton.me/mail/home) secure email.
>> _______________________________________________
>>
>>
>>
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