[OKDXA] Ice and Antennas

[Steve Duskin]

My dad's stepp-ir after an ice storm...



-----Original Message-----
From: okdxa-bounces at mailman.qth.net [mailto:okdxa-bounces at mailman.qth.net] On Behalf Of
Roger Simpson
Sent: Wednesday, February 21, 2018 12:40 PM
To: Oklahoma DX Association <okdxa at mailman.qth.net>
Subject: Re: [OKDXA] Ice and Antennas

=========================
RE: ICE STORM and ANTENNA DAMAGE

I had some antenna damage during the big ice storm in 2013. There was so much ice
loading on my 30-40m Inverted V that the balun mechanically broke causing the antenna to
crash to the ground. I had to replace the balun to get that antenna working.

Also, I had some issues with my beam. My beam is a Cushcraft ASL-2010 log periodic. The
elements sagged a lot and I thought they would break but they returned to the normal
position several days later when the temperature rose above freezing. Also, for a few
days my rotator "frooze up" but it started working OK once the ice melted. I have
pictures of the antenna damage on my web site. Go to "simpsonfamilyokc.com" and select
the "December 2013 Ice Storm" section.

Also I have some pictures of my ham radio stuff dating back to the 1950s.

Hopefully we won't have a bad ice storm that wrecks our antennas.

73    Roger   K5RKS
=========================

------ Original Message ------
From: "John Geiger" <af5cc2 at gmail.com>
To: "Oklahoma DX Association" <okdxa at mailman.qth.net>
Sent: 2/21/2018 12:23:16
Subject: Re: [OKDXA] Ice and Antennas

>Cameron University is closed today also so I am hope and might try a 
>catch a few satellite passes and DX but really need to get caught up on 
>lecture material for tomorrow in case we are open tomorrow.
>
>I hope everyone makes it through with no antenna damage. This is about 
>the only time I am glad I don't have a large beam and tower.
>
>73 John AF5CC
>Lawton
>
>On Wed, Feb 21, 2018 at 6:16 PM, Kim Elmore <cw_de_n5op at sbcglobal.net>
>wrote:
>
>>Both OU and NSSL are closed today due to impending weather, so I'm 
>>home and can play radio a bit. So far, may antennas are fine, if a bit 
>>droopy,??
>>but more ice is on the way. I'm hoping most of it comes as ice pellets
>>(sleet) and not freezing rain.
>>
>>If you'd like to look at the different types of precipitation that are 
>>occurring around your area (or the whole country) in real time, look 
>>at https://mping.ou.edu/display. This displays data that are part of a 
>>project I head at the National Sever Storms Laboratory to better 
>>detect and forecast precipitation type. It shows precipitation type 
>>observations from regular people (dubbed citizen science) and is 
>>submitted via a (FREE!) smart phone app. You can check it out at 
>>https://mping.ou.edu and get the app form either Google Play or the 
>>iTunes App Store.
>>
>>Back to antennas: Even though the antennas are (so far) only a bit 
>>mistuned due to dielectric loading I'm having trouble rotating my 
>>antennas, however. I've rocked them back and forth enough that I can 
>>gr from about
>>170 to 350 degrees, but haven't gotten them much farther. More ice is 
>>likely on the way and I made sure my ARRL insurance is paid up. I've 
>>not yet lost any due to ice, but without doubt my day will come. I 
>>hope it's not today...
>>
>>73,
>>
>>Kim N5OP
>>
>>--
>>
>>Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, 
>>PP SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)
>>
>>/"In theory there is no difference between theory and practice. But, 
>>in practice, there is." //??? Attributed to many people; it???s so 
>>true that it doesn???t matter who said it./
>>
>>
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