van fair wrote:
> Does anyone have any experience using a DPDT relay to send both
> sides of ladder line to ground to disconnect it from your tuner
> instead of using a knife switch . The relay would be mounted in a
> metal box and the ladder line would be connected to the relay
> inside the box with banana plug leads into and back out of the box.
> The relay would be a high current DPDT 12 volt relay.
>
> A quick test passing the ladder line straight through a 5" long
> grounded alum box caused no change in the SWR on 80 and 30 meters.
> The ladder line will only be used and 80 and 30 meters. Thanks Van
> W4GIW
If you are doing this to protect the radios, etc. when not in use I
would be concerned that the narrow gap between the contacts might
easily be jumped by lightning.
Tim, N9PUZ
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