agreed ...i have had 40 and 80 meter inverted vee antennas tied to the same
coax for years, works fine and loads well
jack ak7o
----- Original Message -----
From: "Ron Notarius" <wn3vaw@verizon.net>
To: <tentec@contesting.com>
Sent: Sunday, August 22, 2004 7:13 PM
Subject: Re: [TenTec] grounding dipoles
> Jason,
>
> Assuming that the dipoles are each for separate bands, I'd suggest just
> tying the coax together. RF will always flow down the path of least
> resistance (or reactance) so only the antenna that is cut for a particular
> band will get the RF for that band at any one time. (Yes, I know that's
not
> strictly and technically correct, but it's "close enough for government
> work!")
>
> Two and three vehicles back, when I had a rig to run HF mobile with and a
> van big enough to stick antennas on, I tied multiple antennas (a 40 & 15
> meter Ten-Tec mobile antenna & a trimmed ex-CB 1/4 wave whip) together on
a
> common coax. Because of the close proximity, I had to add a trimmer
> capacitor to the whip, but otherwise, no problem connecting them together
> and running them that way!
>
> I'd further assume that the three antennas each have a separate feed... or
> are you running a remote coax switch? Either way... if you're running
three
> coax runs, save the "extra" two for future antenna projects; if you're
> running a remote switch, save it for another future use.
>
> Enjoy!
>
> 73
>
>
> ----- Original Message -----
> From: "Jason Buchanan" <jsb@digistar.com>
> To: <tentec@contesting.com>
> Sent: Sunday, August 22, 2004 3:51 PM
> Subject: [TenTec] grounding dipoles
>
>
> >
> > I have 3 dipoles on a single push-up pole about 4 or 5 feet apart on the
> > pole - I use a 4-way antenna switch to switch from one antenna to the
> > other. I'm curious if I should disconnect the dipoles i'm not using to
> > avoid creating weird nulls or other problems or if it is okay to leave
> > them connected to the switch all the time - the main reason I ask is the
> > antenna switch I have connects the center and shield to ground when they
> > are not selected on the switch, in essence creating ground radials
> > fairly close to the active dipole.
> >
> >
> > I'm wondering if I should actually be disconnecting these other dipoles
> > completely so they are not tied to anything (just dangling loose,
> > disconnected completely) when using the other dipole(s).
> >
> >
> > Thanks!
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
>
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