[TowerTalk] Beverage termination - Surge Arrestor selection?

[Mark Robinson]

I am using those Harris MOV's to protect my 12V DC lines.

The spec sheet gives the capacitance of the device

Mark N1UK

>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
----- Original Message ----- 
From: "George Dubovsky" <n4ua.va at gmail.com>
To: "Drax Felton" <draxfelton at gmail.com>
Cc: <towertalk at contesting.com>
Sent: Monday, 13 September, 2010 4:10 PM
Subject: Re: [TowerTalk] Beverage termination - Surge Arrestor selection?


>I would think the gas tube would be ok, low shunt C and all that, but the
> MOV would likely be bad. I use dual-element gas tubes across the line on
> both ends of my bi-directional Beverages, and although I have never done a
> before/after test, I do seem to have "normal" Beverage directivity.
>
> 73,
> geo - n4ua
> >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

> On Mon, Sep 13, 2010 at 3:18 PM, Drax Felton <draxfelton at gmail.com> wrote:
>
>>
>> Would it be alright to protect the terminating resistor of a Beverage
>> antenna, against lightning damage, by placing either one or both of these
>> components in parallel with it?  Would they cause a problem with
>> directivity
>> or any other issues?
>>
>>
>> 1.  CP Clare  Surge Arrester 230V
>> Two electrode surge arrester
>> PCB mount
>> Voltage: 230V
>> Part number: CG2-230L
>>
>> http://www.westfloridacomponents.com/mm5/merchant.mvc?Screen=PROD&Store_Code
>> =wfc&Product_Code=VR006&Category_Code=<http://www.westfloridacomponents.com/mm5/merchant.mvc?Screen=PROD&Store_Code%0A=wfc&Product_Code=VR006&Category_Code=>
>>
>> 2.  MOV Metal Oxide Varistor 24Z50 Harris 100J
>> Maximum Ratings: 19.2V - 26VDC Max
>> Max Clamping Voltage: 43VDC
>> 100 Joules
>>
>> http://www.westfloridacomponents.com/VR003/MOV+Metal+Oxide+Varistor++24Z50+H
>> arris+100J.html<http://www.westfloridacomponents.com/VR003/MOV+Metal+Oxide+Varistor++24Z50+H%0Aarris+100J.html>
>>