Ron,

I don't use this switch and can't answer any of your questions about it. 
  However, if you will be using it in conjunction with your entry 
panel/lightening arrestor setup, you need to factor that into the 
equation.  Some arrestors will pass DC, and others need  a way to get DC 
around the arrestor.     I'm not really up on this stuff, but  you might 
want to look at this aspect as well as your other questions.

73, Steve KW3A




On 5/1/2015 10:34 AM, Dr. Ronald E. Milliman wrote:
> Has anyone here had any personal experience with the MFJ Remote Switch,
> MFJ-4712? If so, how well does it work, and how is the 12 volts fed to the
> remote switch using the coax to carry the necessary voltage to the remote
> switch? That is how do they separate the RF and the DC? I know how I would
> do it if I were designing the switch, but I would like to know how MFJ does
> it.
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> Ron, K8HSY
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> Dr. Ronald E. Milliman
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> Retired Professor of Marketing
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> President: Millitronics, Inc. (millitronics.biz)
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> President: A3 Business Solutions (a3businesssolutions.com)
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> President: M&M Properties
>
> President: South Central Kentucky Council of the Blind (SCKCB.ORG)
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