[TowerTalk] Help needed, antenna SWR

[Edward McCann]

Count your blessings.
Chasing the elusive 1:1 with your set-up as described is  not necessary will make your hair turn grey or white and need a Common Mode Choke.
Get on the air!!
AG6CX

Sent from my iPhone

> On Jun 20, 2016, at 7:58 PM, Gary Smith <Gary at ka1j.com> wrote:
> 
> I did some spring maintenance on my antennas and need advice on how 
> to get a 1.1 match.
> 
> I have a radial plate with somewhere around 50 130' radials. I have 5 
> wire antennas attached to this and use an Ameritron remote coax 
> switch to select which antenna to use. There is a sloper for 160, 
> INV-L for 80 and verticals for 40, 30 and 20. 17 & 24M are obtained 
> by selecting either the 160 or 80M antennas. No tuner.
> 
> I took the Antenna analyzer down to the antennas today and found 80M 
> is SWR 1.8, 40 is SWR 1.9, 30M is SWR 2.35 to give some values. The 
> lowest SWR I could get on 30M is 2.35 and the antenna is cut for the 
> right length for minimum SWR at 10.100 MHz. This gives me the lowest 
> SWR on the bands.
> 
> I would like to get the SWR down as low as 1.1 at my desired 
> frequencies If I can do so, but I'm not sure of the best way to do 
> this. I suspect inductance from a coil at the individual feed points 
> would work after I get the to SWR dip the lowest at the desired 
> frequency but if this is the solution, what would be a good way to 
> know do make such coils for each of the antennas? 
> 
> The antennas are 350 feet away, in the woods & onto a salt marsh and 
> for me, right now, walking is very difficult to do and I want to make 
> as few trips as possible.
> 
> Suggestions appreciated.
> 
> 73,
> 
> Gary
> KA1J
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