Short the braid and center conductor and attach that to your tuner single wire
connection.. It will work much better than connecting only one side. This
willgive you a top loaded vertical or semi vertical. I've done it with100w
without issues of RFI. Higher power might be a different story,depending on the
physical placement of things in and around your shack.Having a decent ground
connection to the tuner chassis would be a plus.
Best regards,
Gary, K7EK
On Monday, December 17, 2018, 2:47:32 PM GMT, K4SAV <RadioXX@charter.net>
wrote:
Joe said
"You want to get on 160, but do not have an actual 160 antenna. So you
connect the largest antenna ya have, usually a 80 meter dipole, but you
just push the connector in just so only the center pin is touching, and
load the whole thing up like a top capacity hat, vertical, or end fed
long wire. Hey it works. "
Back many years ago I did the same thing. Well, I knew better but I had
this flash of stupidity overcome me and I wanted to use it while it was
fresh. I blew out all the horizontal drivers in the big projection TV set.
Jerry, K4SAV
On 12/17/2018 8:31 AM, Joe wrote:
> OK, as users of this band, we all have probably done this at least
> once in your radio lifetime.
>
> You want to get on 160, but do not have an actual 160 antenna. So you
> connect the largest antenna ya have, usually a 80 meter dipole, but
> you just push the connector in just so only the center pin is
> touching, and load the whole thing up like a top capacity hat,
> vertical, or end fed long wire. Hey it works.
>
> I'm thinking of doing something similar, because a full sized 1/4 wave
> elevated vertical for 40 meters, works as well as a cannenna does when
> trying to use it on 160.
>
> But I never thought of what might be the best way to do this. The
> antenna as stated is a full sized 1/4 wave elevated Vertical, The
> base of the vertical is 10 feet above the ground with sloping radials
> that act as guy wires also to hold the base in place.
>
> At the base of the antenna right at the feedpoint, is a large multi
> turn coax choke. ( Ya know the so many turns on a PVC pipe thing )
>
> The feedline is then ran through the air for about 60 feet to the eve
> of the house where it runs along the eve of the house on 2 sides and
> finally into the shack. Total length is about 100 feet.
>
> Now I am trying to decide without actually trying to make up
> connectors or whatever, what might be the best way to use this on 160.
>
> 1- As described above just the center pin, touching. I guess with the
> braid floating the braid gets capacitivly coupled to the power and
> does the radiating and receiving. YES? NO?
>
> BUT I can see the RF actually also going and using the existing
> vertical because of the touching center pin. BUT, the braid signal,
> I'm assuming the RF is not getting past the Coax coil and using the
> radials.
>
> 2- Apply power to only the braid? similiar to #1 but backwards. again
> no power to the radials probably?, and only cap coupled to the vertical.
>
> 3- short the center and shield together and run it that way.
>
> Anyone have any thoughts of the best configuration any thoughts?
>
> Or how would a end fed random wire like 1/4 wave long about 10 feet up
> work better?
>
> Joe WB9SBD
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