[nrv-hams] Antenna Switches - should I be concerned?

[Russ Abbey]

Hi Cam,
I really think you are over reacting to this.  While I am NOT an expert, I
can say that I have 3 of these but the 4 position ones.  one is VH/UHF and
the other is for HF.  On the HF side I have a Windom (160-6)[North South],
triband beam, and another Windom (40-6 meters) [East West]  I have never
had a problem with cross talk or anything.  The same thing on the VHF/UHF
side of thing Cam.  I have had no problem with the two beams and 2
verticals cross talking.  I don't know about the Daiwa, but the ones I use
4 position Alpha Delta's for my station.  Never a problem with them.
Good luck Cam.

Russ, KG4MAV










On Mon, Apr 18, 2016 at 8:32 PM, Cam Coble <cam at doubleclickdata.com> wrote:

> I'm looking to use a switch in my home rig and possibly mobile rig setups,
> but stopped short when thinking it through (I do that time to time).
>
> I purchased a quality 2 position switch (Daiwa CS-201). I want to switch my
> rig to connect between my current antenna (OCF 80m Dipole), and any other
> creation I may come up with.
>
> It seems that the design (as seems common for these type switches) is to
> keep the ground/shield common (shorted) between all three posts, and only
> switches the center conductor to connect the source with position (antenna)
> 1 or 2. Maybe a better way to write it is that it's a single throw double
> pole for the center conductor, and shields are always connected.
>
> My concern is that with this design, any antennas connected to the shield
> have the possibility of resonating during transmit. Never-mind that I could
> be receiving signals from all as well.
>
> Am I overthinking this?
> Seems that if I have my OCF dipole on position 1 and a 20m dipole on
> position 2, there is a possibility of some really *weird* reactions.
>
> Any guidance/wisdom/links would be appreciated!
>
> Thanks!
> 73
> --
> Cam Coble - W4XXV
> ______________________________________________________________
> nrv-hams mailing list
> Home: http://mailman.qth.net/mailman/listinfo/nrv-hams
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:nrv-hams at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>