[BVARC] roof antenna lightning strikes
Westley Clavey
wesclavey at aol.com
Wed May 26 08:16:48 CDT 2021
Back in the radio dark ages of the late 1960s, I had a tri-band beam
about 12' up from the peak of my roof. When not in use, I would
disconnect it and put a small SO239 coax pigtail with a neon bulb
soldered across it. You could see the effects of lightning all across
the Chesapeake Bay by watching the neon bulb flash.
Wes, W5WMC
On 5/26/21 7:58 AM, John D'Agostino via BVARC wrote:
> Just as an fyi. Even if a storm is not nearby I have noticed on HF
> brief power surges on my display screen that shoots across the band
> meter making a crackling noise which I have been told is lightning….
>
> John D
> W5RDY
>
> Sent from my iPhone
>
>> On May 26, 2021, at 7:39 AM, Jeffrey Carson via BVARC
>> <bvarc at bvarc.org> wrote:
>>
>>
>> This tends to get controversial, but I disconnect my antenna as well
>> when not in use and definitely If i know lightning is in the area.
>>
>> KF5ONT
>>
>> On Wednesday, May 26, 2021, 07:23:43 AM CDT, John Mechura via BVARC
>> <bvarc at bvarc.org> wrote:
>>
>>
>> You don't have to receive a direct hit to have issues.
>>
>> Last year, I had an Armstrong Dipole made of two 80 meter hamsticks
>> 20 feet up on 4 inch PVC drain pipe right next to the house. My ham
>> equipment was turned off and I was using the computer instead,
>> sitting at the same position. There was a lightning strike close by
>> but not directly. Just as I saw the flash outside I heard a
>> loud snap in my station monitor. After the storm I tested my
>> equipment and it was working well. A few days later my transmit /
>> receive relay became intermittant in the receive position, which
>> required cleaning of the relay contacts.
>>
>> I believe that what I experienced was an "induced" Voltage and not
>> any kind of direct hit. I now disconnect the antenna cable if not in
>> use.
>>
>> John, KI5HOC
>>
>> On Tue, May 25, 2021 at 11:29 PM gmuller12103 via BVARC
>> <bvarc at bvarc.org <mailto:bvarc at bvarc.org>> wrote:
>>
>> Lived in Houston for 27 yrs and have a 2 mtr on the roof and beam
>> up 45 to 50 ft and never had a lightning 🌩 strike.
>>
>>
>>
>> Sent via the Samsung Galaxy Note20 Ultra 5G, an AT&T 5G smartphone
>>
>>
>> -------- Original message --------
>> From: Mike Lambert via BVARC <bvarc at bvarc.org
>> <mailto:bvarc at bvarc.org>>
>> Date: 5/25/21 10:35 PM (GMT-06:00)
>> To: BRAZOS VALLEY AMATEUR RADIO CLUB <bvarc at bvarc.org
>> <mailto:bvarc at bvarc.org>>
>> Cc: Mike Lambert <mikradhou at hotmail.com
>> <mailto:mikradhou at hotmail.com>>
>> Subject: [BVARC] roof antenna lightning strikes
>>
>> How common are home roof antenna (12 foot or less) lightning
>> strikes in
>> Houston?
>>
>> How many BVARC folks have had a lightning strike on their radio
>> (or TV)
>> antenna (elevation 12 foot or less) on their roof?
>>
>> Is this a Stir-Crazy Net subject?
>>
>> Thanks,
>>
>> Mike
>> KI5MIK
>>
>>
>>
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>
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--
Wes Clavey
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