Topband: Top loaded vertical help,

[marsh at ka5m.net]

"Also what is a FCP seen it in a previous topic"

Original article on the FCP as published in the May/June 2012 NCJ is at 

https://www.okdxf.eu/files/Olinger_FCP_article_as_published_in_NCJ.pdf

73,
Marsh, KA5M



-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of MR TREVOR
DUNNE
Sent: Tuesday, September 5, 2017 4:46 PM
To: topband at contesting.com
Subject: Topband: Top loaded vertical help,

Hi All

Looking for a little help I'm going to build a top loaded vertical for 160m

I have about 70-75ft vertical and was thinking about using 4 wires off the
top to make up the difference,

My garden is not in the clear with houses and other buildings surrounding it
so I'm looking to get the max current up as high as possible,

Would going longer on the antenna help maybe 3/8th wave will that effect the
take off angle, also what would give the best match to 50ohms I'm not that
clued up on matching networks so want to keep it simple as possible,

I will be able to put a good amount of decent sized radials down 60ft
minimum, 

I'm also thinking of hanging a 80m wire down along side the vertical spaced
2ft out and feeding it with another piece of coax against the same radial
field will this cause me any issues ??

I had a trap on a previous inverted L for 160/80 and the bandwidth was
terrible so thinking this approach might work better,

I'm a newbie to all this so be gentle with me Hi Hi 

Also what is a FCP seem it in a previous topic,

Thanks
Trevor
EI2GLB
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