I've used a small scissors jack. Loosen the thrust bearing, just the jack to
raise the mast until it clears the rotator, tighten down the bearing on the
mast, pull out the rotator sideways between the webbing.
With a crank up, the tower usually must be somewhat extended to do this. And
at my age I'm not climbing telescoping towers anymore (although I used to,
after chocking the sections with a 4x4) so I'd have to hire a man-lift (bucket
truck) to do any of this.
It's nice to "plan in advance" for such things by locating the rotator down a
bit lower in the tower so two thrust bearings can be used: One at the top
(normal) and one on a rotator plate a few feet lower. Then you have two
bearings to secure the mast once it's lifted above the rotator.:-)
But many don't plan in advance for such things.
WB2WIK
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of
maflukey@gmail.com
Sent: Monday, April 29, 2024 4:06 PM
To: 'Don Tucker' <w7wll@peak.org>; towertalk@contesting.com
Subject: Re: [TowerTalk] MFJ QRT on May 17, 2024
You need to buy, fabricate, or borrow a mast raising fixture.
73
Matt
KM5VI
-----Original Message-----
From: TowerTalk <towertalk-bounces@contesting.com> On Behalf Of Don Tucker
Sent: Monday, April 29, 2024 12:57 PM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] MFJ QRT on May 17, 2024
Chuckle! Got on the air two months short of 70 years ago and there was always
some bitchin' going on the about some issue by a part of the ham community.
Today we're still bitchin', just the technical content has changed. We haven't.
Now, how about telling me an easy way to lift a mast with a TH7DX and A3WS on
it up and out of a T2X rotator enough so I can yank the rotator (broken
tooth?) out. Would like to do it straight up and yes could tilt the tower
(HG-70HD) over but still leaves the rotator problem (1/2 boom length of the
TH7DX leaves the tower still way up with same problem).
Want to avoid having to drop the antenna.
Don W7WLL
On 4/29/2024 8:42 AM, Ken WA8JXM wrote:
> I can say this: back when I started (1963) we had 300 kc/s for CW
> only on 80m and many nights it was difficult to find an open spot to call CQ.
75m
> phone had 200 kc/s and was crowded even worse. Now CW effectively has
> about 70 kHz and it's mostly empty, maybe two or three signals. Newer
> hams have no idea what ham radio used to be :-(
>
> However, the FT8 spot is busy.
>
> I'm not big on FT8, but I do appreciate it: 1) it brings activity to our
> bands. If we don't use it, we will lose it. 2) it is an efficient
mode,
> cramming many signals into a small bandwidth and decoding signals that
> we can't even hear. Great technical job.
>
> Some people decry FT8 for lack of useful communication. But at least
> it communicates useful signal reports and location which is a lot more
> than the typical "599 TU" DX or contest contact communicates.
>
> Ken WA8JXM
>
>>
> _______________________________________________
>
>
>
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