[Amps] What to do about 'Neutral' in HB amp?

Jim jimw7ry at gmail.com
Wed Dec 28 19:46:26 EST 2022


Oh... And bandwidth limits are SOOOOOO 1990s Bob...  Top posting? Just 
like everyone else does here?

Got it.

Thanks, 73, Jim W7RY

On 12/28/2022 6:30 PM, Robert W5AJ wrote:
> wonder who's read the list welcome message lately (click amps link at 
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>
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>
> 73
>
> On Wed, Dec 28, 2022 at 6:26 PM Jim <jimw7ry at gmail.com> wrote:
>
>
>     Thanks, 73, Jim W7RY
>
>     On 12/28/2022 5:29 PM, n4is at comcast.net wrote:
>     >
>     > Whats a catch 22?
>     >
>     > You need to connect the Amp chassis to the AC neutral (wire
>     connected to the
>     > ground at the AC entrance), and you need to connect the Amp
>     chassis to the
>     > ground of the station, at same time, the  ground of the station
>     need to be
>     > connected to the AC ground at the entrance. All neutral wires
>     must be
>     > connected to only one point!
>     >
>     > You cannot do both at the same time.
>     >
>     > If you don't isolate the AC house ground from the station
>     ground, also
>     > neutral, because it is also connected at the AC entrance, you
>     end up with a
>     > UNSAFE ground. RF can flow to the house, EMF generate currents
>     on both wires
>     > and you want the current to the ground, not to your house. It is
>     a mess.
>
>     > Neutral or ground are two names for the same thing,
>
>
>     Wrong. They are separate conductors, only being common at the primary
>     service disconnect.
>
>     I'm out...
>
>     Jim W7RY
>
>
>     >   a wire from the chassis
>     > to a bar on the ground. But!  The functionality is different,
>     neutral is for
>     > human safety, ground wire is low impedance path to the actual
>     ground. A long
>     > ground wire for the station is a problem, 10 ft long can became
>     an antenna
>     > for 28 MHz, a long neutral wire is not a problems, it works for
>     safety, if
>     > no current flow on it, no load.
>     >
>     > 73's
>     > JC
>     > N4IS
>     >
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