>
>I once bought a HiTower used. One of the insulators was replaced with
>white PVC. It didn't seem to arc over at full power on 80.
>Apparently, the factory supplied one did at some time!
>
>However, I didn't use it in a contest environment so perhaps the white
>PVC would have failed too.
>
// Apparently, there are different types of PVC. Some melt in a
microwave oven. Some don't.
However, ABS is a plastic that consistantly has a low D-factor, so it is
ok with RF.
cheers, Brian
>
>n4kg@juno.com wrote:
>>
>> Some time ago, W4ZWE made an insulated feed
>> 40M rotary dipole using PVC insulators. If I remember
>> correctly, one type of PVC failed under application of RF
>> while another did not. I'm thinking the white PVC failed
>> and the black held up but it could be backwards. Anybody
>> else experience this phenomenon?
>>
>> Tom N4KG
>>
>>
>>
>> ________________________________________________________________
>> GET INTERNET ACCESS FROM JUNO!
>> Juno offers FREE or PREMIUM Internet access for less!
>> Join Juno today! For your FREE software, visit:
>> http://dl.www.juno.com/get/tagj.
>>
>> List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
>> Trylon Titan towers, coax, hardline and more. Also check out our self
>> supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
>>
>> -----
>> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
>> Submissions: towertalk@contesting.com
>> Administrative requests: towertalk-REQUEST@contesting.com
>> Problems: owner-towertalk@contesting.com
>
>List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
>Trylon Titan towers, coax, hardline and more. Also check out our self
>supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
>
>-----
>FAQ on WWW: http://www.contesting.com/FAQ/towertalk
>Submissions: towertalk@contesting.com
>Administrative requests: towertalk-REQUEST@contesting.com
>Problems: owner-towertalk@contesting.com
>
>
- R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
end
List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!! http://www.anwireless.com
-----
FAQ on WWW: http://www.contesting.com/FAQ/towertalk
Submissions: towertalk@contesting.com
Administrative requests: towertalk-REQUEST@contesting.com
Problems: owner-towertalk@contesting.com
|