I am using a home-built ladder line with the home-built, manual tuner in the
shack with good results. It's a little messy to have to tune it up every time I
change the band but I have got use to it.
Hans - N2JFS
-----Original Message-----
From: Steve Jones <n6sj@earthlink.net>
To: K1TTT <K1TTT@ARRL.NET>; towertalk <towertalk@contesting.com>
Sent: Mon, Aug 6, 2012 8:18 pm
Subject: Re: [TowerTalk] Looking for thoughts
I'd do the same, except I'd use homemade true open-wire line (not ladder
line), much lower loss than coax. With the relays at the antennas.
73,
Steve
N6SJ
----- Original Message -----
From: "K1TTT" <K1TTT@ARRL.NET>
To: <towertalk@contesting.com>
Sent: Monday, August 06, 2012 2:40 PM
Subject: Re: [TowerTalk] Looking for thoughts
>I would use a decent low loss coax, a remote relay box, and keep the tuner
> in the shack.
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt@arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: 145.69MHz or telnet://k1ttt.net
>
>
> -----Original Message-----
> From: K8RI [mailto:K8RI-on-TowerTalk@tm.net]
> Sent: Monday, August 06, 2012 20:49
> To: towertalk@contesting.com
> Subject: [TowerTalk] Looking for thoughts
>
> I'm thinking of mounting a tuner up on the tower to feed the 160 half
> sloper
> (single wire) as well as the 75 meter fan dipole and 40 meter sloping
> dipole
> with ladder line, so I'll need to add a few relays to switch antennas.
>
> This can be a simple manual tuner, remotely driven with air variables and
> a
> switched inductor, or vacuum variable and a rotary inductor, or even one
> of
> the MFJ 998RT auto tuners. If I build it, I'd much prefer a tuner that
> handles single and parallel wire without using a balun
>
> Unfortunately the 998RT only has a single wire and coax output. I can work
> around that and *apparently*, or at least some think it'd handle all the
> way
> up to 2500 PEP.
>
> Of course there is the problem with lightning and remote tuners mounted at
> or near the top of the tower. Grounding relays could be added.
>
> 73
>
> Roger (K8RI)
>
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