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Pjmphil10 Gate Opener
Joined: 25 May 2014 Odometer: 5
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Posted: Sun May 25, 2014 9:25 pm Post subject: Mast
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Hi all, um looking on increasing the distance covered on my 81. I currently use a motorola cm340 with the standard whip mounted on a magmount. Is their any way off using a tripod/ mast etc to increase distance when in a valley etc?
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excossack Mud Obsessed
Joined: 06 Mar 2005 Odometer: 2903 Location: Somewhere
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Posted: Mon May 26, 2014 7:44 am Post subject:
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I use one like this http://www.ebay.co.uk/itm/17FT-PORTABLE-ALUMINI...sh=item46152c75ae
I made a mounting plate that goes under my wheel and then I slot the mast into the upright. Secure with guy lines.
I then have a suitably cut whip that mounts into a mount with three ground planes. This is then connected via length of RG213 Coax.
If you want a picture I can set-up the gear and take a picture.
What's your call-sign ?
Mine is Gemini 33/Gemini Recovery
__________________________________ Thanks - John |
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Pjmphil10 Gate Opener
Joined: 25 May 2014 Odometer: 5
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Posted: Mon May 26, 2014 8:13 am Post subject:
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Hi, the ground plane is Bit that um not sure about, pictures would be great.
Thanks for the link, looks great and just what um after.
Msa call sign. Bovi 2
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LlaniGraham Mud Obsessed
Joined: 06 Nov 2005 Odometer: 2701 Location: Llanidloes
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Posted: Mon May 26, 2014 10:38 pm Post subject:
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I thought that there was a height limit the normal operators were limited to, and that only "Control" could use a mast?
__________________________________ MSA Radio WORCESTER 1
4x4 Response Wales |
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excossack Mud Obsessed
Joined: 06 Mar 2005 Odometer: 2903 Location: Somewhere
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Posted: Tue May 27, 2014 7:35 am Post subject:
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If there are height limits, its never been mentioned to me and I have been asked by a controller to bring my mast.
If you do find the regs regarding this then please share.
__________________________________ Thanks - John |
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Pjmphil10 Gate Opener
Joined: 25 May 2014 Odometer: 5
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Posted: Tue May 27, 2014 10:18 am Post subject:
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What's the dimensions on tip of the mast, wall thickness at the tip ?
I think the rule about mast heights is 9 mts. I have no idea where I read that!!
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excossack Mud Obsessed
Joined: 06 Mar 2005 Odometer: 2903 Location: Somewhere
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Posted: Tue May 27, 2014 2:01 pm Post subject:
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I can measure for tonight if I think ok. Not sure the mast is 9m though.
__________________________________ Thanks - John |
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excossack Mud Obsessed
Joined: 06 Mar 2005 Odometer: 2903 Location: Somewhere
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Posted: Tue May 27, 2014 8:46 pm Post subject:
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Not measured mast but here are some pics of the antenna
__________________________________ Thanks - John |
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Pjmphil10 Gate Opener
Joined: 25 May 2014 Odometer: 5
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Posted: Tue May 27, 2014 8:52 pm Post subject:
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Looks the business, ordered a mast, and getting quotes for antenna tuned into the right frequency.
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