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[ 9 posts ] |
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Crazy project on for tomorrow!
M0CLS
Contributor 2020
Joined: Sat Jun 01, 2013 4:54 pm Posts: 538 Location: Carnforth, Lancs
Feedback: 121 (100%)
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 Crazy project on for tomorrow!
Hi all,
Tomorrow I will be receiving a 22 meter Spiderbeam fibreglass mast which I plan to create a 1/2 wave 40m vertical, in my back garden! The matching unit is a 1:60 impedance transformer which will be just over 1 meter from the ground. Wire will then go straight to the top of the mast.
I’m using the antenna at the moment but in an inverted L configuration using a 12m spiderbeam. 10m vertical and 10m horizontal. The antenna performs fantastically on 40/20/15/10m and tunes up on 17/12 easily. I’m hoping having it completely vertical will be even better!
Also I plan to run up a wire up the other side of the mast for a 80m 1/4 wave (with radials obviously).
My neighbours are going to love me!
Carl.
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Mon Sep 03, 2018 6:09 pm |
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Crazy project on for tomorrow!
G7BZD
Contributor 2020
Joined: Mon Nov 17, 2008 8:00 pm Posts: 2825 Location: Isle of Wight. IO90FQ. EU-120.
Feedback: 35 (100%)
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 Re: Crazy project on for tomorrow!
Good luck with the neighbours.
Mine spotted a couple of scaffolding poles, left for me by the scaffolders, bit more obvious now that the scaffolding is down and the roof is done. I had put them vertical strapped to my ladder brackets, old nosey asked why they had left them. The expression on her face, when I said they were mine. I found it hard not to smile, should keep the curtains twitching till she moves.
Phil - G7BZD
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Mon Sep 03, 2018 7:40 pm |
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Crazy project on for tomorrow!
G4HTZ
Contributor 2020
Joined: Sun Sep 22, 2013 7:56 pm Posts: 1980 Location: JO01JN great wakering Essex
Feedback: 83 (100%)
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 Re: Crazy project on for tomorrow!
M0CLS wrote: Hi all,
Tomorrow I will be receiving a 22 meter Spiderbeam fibreglass mast which I plan to create a 1/2 wave 40m vertical, in my back garden! The matching unit is a 1:60 impedance transformer which will be just over 1 meter from the ground. Wire will then go straight to the top of the mast.
I’m using the antenna at the moment but in an inverted L configuration using a 12m spiderbeam. 10m vertical and 10m horizontal. The antenna performs fantastically on 40/20/15/10m and tunes up on 17/12 easily. I’m hoping having it completely vertical will be even better!
Also I plan to run up a wire up the other side of the mast for a 80m 1/4 wave (with radials obviously).
My neighbours are going to love me!
Carl. Sounds interesting carl Be interested in results after antenna is all vertical. Was thinking of getting a 18m spiderbeam pole here Good luck getting it up Steve
_________________ 10ghz and 24ghz transverter builds in progress
Refurbishment of a Viking Johnson 11 1950s AM TX in progress
Don’t do much transmitting these days .....
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Mon Sep 03, 2018 7:49 pm |
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Crazy project on for tomorrow!
M0CLS
Contributor 2020
Joined: Sat Jun 01, 2013 4:54 pm Posts: 538 Location: Carnforth, Lancs
Feedback: 121 (100%)
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 Re: Crazy project on for tomorrow!
I think the best way to getting it vertical is half erecting it first. Then walk it up and sit it on an alloy pole which itself sits in the ground, then push up each section one by one, cable tying the wires and tightening the clamps as I go. The guys will be tied loosly to position at some point and tightened later....
Then its just a case of waiting for the giant in the sky to climb down it!
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Mon Sep 03, 2018 8:07 pm |
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Crazy project on for tomorrow!
G4LNA
Contributor 2020
Joined: Sat Mar 31, 2012 8:11 pm Posts: 3535 Location: Markyate, St Albans, IO91ST
Feedback: 8 (100%)
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 Re: Crazy project on for tomorrow!
Blimey! I had enough trouble getting a 12m one up, it made me sweat a bit. It didn't stay up long because I find the doublet works better for me, I use just the 9m section to support the middle of the doublet where the feeder is.
_________________
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Mon Sep 03, 2018 8:31 pm |
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Crazy project on for tomorrow!
G4HTZ
Contributor 2020
Joined: Sun Sep 22, 2013 7:56 pm Posts: 1980 Location: JO01JN great wakering Essex
Feedback: 83 (100%)
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 Re: Crazy project on for tomorrow!
M0CLS wrote: I think the best way to getting it vertical is half erecting it first. Then walk it up and sit it on an alloy pole which itself sits in the ground, then push up each section one by one, cable tying the wires and tightening the clamps as I go. The guys will be tied loosly to position at some point and tightened later....
Then its just a case of waiting for the giant in the sky to climb down it! https://youtu.be/_RrHdqwjctMBlimey .....this looked like a accident waiting to happen
_________________ 10ghz and 24ghz transverter builds in progress
Refurbishment of a Viking Johnson 11 1950s AM TX in progress
Don’t do much transmitting these days .....
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Mon Sep 03, 2018 8:50 pm |
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Crazy project on for tomorrow!
G6CSL
BANNED
Joined: Sat Feb 25, 2012 7:07 pm Posts: 11612 Location: Workington, Cumbria.
Feedback: 4 (100%)
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 Re: Crazy project on for tomorrow!
_________________ Chris, 'oop North.
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Mon Sep 03, 2018 9:37 pm |
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Crazy project on for tomorrow!
M0CLS
Contributor 2020
Joined: Sat Jun 01, 2013 4:54 pm Posts: 538 Location: Carnforth, Lancs
Feedback: 121 (100%)
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 Re: Crazy project on for tomorrow!
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Tue Sep 04, 2018 6:31 am |
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Crazy project on for tomorrow!
g7pan
Contributor 2020
Joined: Sun Oct 14, 2007 10:44 am Posts: 1431 Location: Sheffield io93gi
Feedback: 95 (100%)
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 Re: Crazy project on for tomorrow!
What happened? i see you have the mast up for sale.
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Fri Sep 07, 2018 5:56 pm |
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