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Re: HT44/SX117 Dow Key help.


 

Another option.

A home made box with a garden variety ice cube relay will do the job. ? With a DPDT 120V AC relay you can use the other pole to ground the Rx input on transmit as well.

John K5MO

PS: Yes on 10M there is a small impedance bump, but that's why we have a variable cap in the tank :-)


On Fri, Sep 20, 2024 at 6:41?AM Floyd - K8AC via <floydsense=[email protected]> wrote:
I have an SX-117 and HT-44 station and I use a Johnson TR switch instead of a relay.? No external power or switching is needed.? A B&W TR switch also works quite well.? Note that a real TR switch is electronic - a tube does the switching, unlike some boxes that use a relay but call it a "TR Switch" when it's not.? Cost is similar to a coaxial relay.
?
73, Floyd - K8AC

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