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Message-ID: <920225400E5141C3B0306618A8014D4C@JimPC>
From: "James Moritz" <james.moritz@btopenworld.com>
To: <rsgb_lf_group@blacksheep.org>
References: <757249.10503.qm@web28508.mail.ukl.yahoo.com><52DA83374E134FAA82C30CA6C5AA8796@JimPC><33FB0F1A8E00405A81DDFA2BB3645CFA@JimPC><55474964CC1F4840B547FC6FB5A55228@JimPC><AANLkTi=U0whaF3yyre8ZDpvOW_38c1qiL0Ev4=0SycK_@mail.gmail.com><7840EC187F9F46898DD63AF72FE117BF@JimPC> <AANLkTi=ddLKRPxPT08M2k98H0kV6pfOgd1-RgkcLR2a-@mail.gmail.com>
In-Reply-To: <AANLkTi=ddLKRPxPT08M2k98H0kV6pfOgd1-RgkcLR2a-@mail.gmail.com>
Date: Tue, 29 Mar 2011 23:24:37 +0100
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Subject: LF: Re: M0BMU 500kHz /P
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Dear Roger, LF Group,

> Thanks for the information Jim. The 15.3m fibre glass pole looks useful. I
> presume this was one bought from an internet supplier and that it 
> collapses
> down for transportation.  I can just make out some guy wires in the photo.

The mast is a giant "roach pole" that telescopes down into about 1.8m 
length. It actually has 2 additional sections that go to about 18.5m total 
length, but they are too flexible to support any useful horizontal load, so 
I left them off. It came with a set of jubilee clips to clamp the sections 
in place once extended - these are definitely essential. After some 
experiments, I found the best way to put up the antenna single-handed was to 
lash the collapsed antenna to a fence post, attach the top wires to the top 
section, and extend the pole in the vertical position - a step-ladder was 
useful! The top load wires guy the top of the mast, I added a second set of 
guys about half way up to stop the mast bowing under the vertical load, and 
due to the wind.

Cheers, Jim Moritz
73 de M0BMU