Re: Topband: Ground loop isolator that passes DC

[Don Kirk <wd8dsb@gmail.com>]

Hi Chuck,

Based on the application you mentioned, I suspect you’re looking for
commercially available bias tees.  MFJ sells Bias Tees.

Don (wd8dsb)

On Fri, Dec 3, 2021 at 3:33 PM Chuck Hutton <charlesh3@msn.com> wrote:

> Hi -
>
> Many years ago I saw some ground loop isolators that pass DC.
>
> That is exactly what I need so that power can be sent over coax feeds to
> preamp at the antenna.
>
>  I cant find anything on eBay that mentions passing DC in an isolator.
> None of the isolators I have will pass DC.
>
> Does anyone know an isolator that passes DC? I would like to avoid
> building one.
>
>
> Chuck
>
>
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