Morgan Systems has a DC pass arrestor for 50 MHz and up. Will depend on how
much power you want to run through it and whether you want UHF or N
connectors. If you're running more than a KW, you'll have to look elsewhere
like Polyphaser or others.
M304N-PP.
http:/surgestop.com
I am A satisfied user of their products I have four coax arrestors, a rotor
and a control line suppressor all mounted on a 24x24 aluminum plate at my
bulkhead.
73
Dave
NN4TT
Sent from my not-so-new OnePlus 6T on T-Mobile.
On Sat, Feb 18, 2023, 12:00 PM <towertalk-request@contesting.com> wrote:
> Send TowerTalk mailing list submissions to
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> Today's Topics:
>
> 1. Bias Tee & Lightning Protection (Art Greenberg)
> 2. Re: Bias Tee & Lightning Protection (Jim W7RY)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 18 Feb 2023 10:17:17 -0500
> From: Art Greenberg <art@artg.tv>
> To: TowerTalk@contesting.com
> Subject: [TowerTalk] Bias Tee & Lightning Protection
> Message-ID: <2c1527ee-d043-3190-ee16-9edaa54b8545@artg.tv>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> I'm considering adding a mast-mounted LNA for 2m and I want to deliver
> 12V to it through the coax. Currently, all of the lightning arrestors in
> my entrance panel are DC blocking type.
>
> I can see a couple of ways to accomplish this.
>
> - Replace the lightning arrestor for the 2m antenna with a model that
> passes DC.
>
> - Install a bias tee on the antenna side of the lightning arrestor and
> run the 12 supply to it through a "control line" type arrestor.
>
> Your thoughts?
>
> Thanks.
>
> --
> Art Greenberg
> WA2LLN
> art@artg.tv
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 18 Feb 2023 10:14:14 -0600
> From: Jim W7RY <jimw7ry@gmail.com>
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Bias Tee & Lightning Protection
> Message-ID: <017b93ac-141d-9e2a-8a22-97b2a155c5d8@gmail.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
>
>
> On 2/18/2023 9:17 AM, Art Greenberg wrote:
> > I'm considering adding a mast-mounted LNA for 2m and I want to deliver
> > 12V to it through the coax. Currently, all of the lightning arrestors
> > in my entrance panel are DC blocking type.
> >
> > I can see a couple of ways to accomplish this.
> >
> > - Replace the lightning arrestor for the 2m antenna with a model that
> > passes DC.
> *Yes*
> >
> > - Install a bias tee on the antenna side of the lightning arrestor and
> > run the 12 supply to it through a "control line" type arrestor.
> *Absolutely NOT*
>
> >
> > Your thoughts?
> >
> > Thanks.
> >
>
> --
> *Thanks and 73, Jim W7RY*
>
> ------------------------------
>
> Subject: Digest Footer
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
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>
> ------------------------------
>
> End of TowerTalk Digest, Vol 242, Issue 15
> ******************************************
>
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