In case you ever wonder what one looks like after taking a hit of
lightning........
https://w8bya.com/Gallery/HAM_RADIO/MISC/images/IMG_0274a.jpg
Gedas, W8BYA EN70JT
Gallery at http://w8bya.com
Light travels faster than sound....
This is why some people appear bright until you hear them speak.
On 9/13/2020 6:09 AM, Jon Zaimes via TowerTalk wrote:
The newer XM-240s (MFJ) that I've seen use the painted-on coating, not
shrink-wrap as the earlier ones did. I've installed a couple and have not had
any reports of failures.
My own older XM-240, in service here about three years and in Virginia before
that for about 12 years, has the original shrink wrap and screws, and I've had
no problems. But others have had trouble with the screw/wire connection after
some years of service. I have repaired these with a stainless through-bolt and
lock nut.
W1WEF wrote up a detailed fix for this (on the earlier 40-2CD):
https://www.yccc.org/Scuttlebutt/2008/Butt0808.pdf
73/Jon
Jon P. Zaimes, AA1K
Tower climber for hire
http://www.aa1k.us/
Cell: 302-632-2353
Reviews of AA1K tower work on eham website:
http://www.eham.net/reviews/detail/12922
Hug your favorite tower every day, and always stay connected to it.
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of RVZ via
TowerTalk
Sent: Saturday, September 12, 2020 6:08 PM
To: towertalk@contesting.com
Subject: [TowerTalk] Cushcraft XM-240 Shortty-Forty questions
Hi Guys,
I purchased a Cushcraft XM-240 which was new in the box but was made about 10 years ago. The label
on the box says "Cushcraft XM-240", and doesn't mention MFJ, so perhaps it was made by
Cushcraft. My questions pertains to the 4 loading coils. I believe the loading coils made by MFJ
have heat shrink tubing over the coil, is that correct? The loading coils on this XM-240 don't have
heat shrink tubing over them, rather the coil is covered with a thick shiny black epoxy which is
very hard. The epoxy has really sealed up the coils and self tapping screws that connect the coils
to the aluminum tubing. I believe the epoxy would be rather difficult to remove so I'm wondering
if I'm likely to have reliable results using the traps "as-is" for a couple years, or if
I should remove the hard epoxy from the self- tapping screws now and replace them with screws,
nuts, and lock washers? If I do replace the screws, should I cover them with more epoxy, use heat
shrink tubing, or both? Thanks
&
73, Dick- K9OMWisconsin _______________________________________________
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