[nrv-hams] Antenna Switches - should I be concerned?
Cam Coble
cam at doubleclickdata.com
Mon Apr 18 20:32:58 EDT 2016
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
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