[TowerTalk] surge arrestors or good grounding?

Martin A Flynn maflynn at theflynn.org
Wed Aug 5 23:14:56 EDT 2015


Alpha / Delta ATT3G50DIN/HP is one such device, however they appear to 
be out of production.

The only other comparable product that I am aware of is the Hofi Model 
7756 
http://arraysolutions.com/shop/index.php?route=product/product&product_id=222

Martin
W2RWJ


On 8/5/2015 11:06 PM, Grant Saviers wrote:
> I'm wondering what commercial practice is re surge arrestors?
>
> I note the max power ratings for DIN connector arrestors is 250 watts 
> at least at Tessco.  Many are frequency selective. PolyPhasers claim 
> 2500 watts 1.5MHz to UHF.
>
> With top and bottom tower bonding to a ground rod grid and 125' to 
> tower in a trench with the shack entry plate feedthrough grounded to a 
> 200' perimeter footing Ufer, to center pin arrestors do anything useful?
>
> Tower and trench coax is all DIN terminated hardline, so it would make 
> sense to connect to a DIN connector arrestor (if useful), but no such 
> QRO animal seems to exist.
>
> Grant KZ1W
>



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