[Antennas] DC voltage on coax

Fri Nov 5 08:33:51 EST 2004

----- Original Message -----
From: "Chris Boone" <CBoone at earthlink.net>
> Never have dealt with Sat dishes or similar have you? A RF choke and
> some caps are involved....
> The caps allow the DC to be injected onto the coax while isolating
the
> coax path in one direction from the DC...

interesting theory
>the RF Chokes keeps the RF from
> coming out the DC leads...
>> Look at the ARRL Handbook for info on what parts you need.....the
ckt
> would be:
>> RIG------>cap->--------------------------------cap-->antenna, etc
> | |
> rf choke rf choke
> | |
> bypass cap to gnd bypass cap to gnd
> | |
> DC input DC output
>
no DC will path the cap on the RIG side...
the choke has to be connected to the coax on the right side of that
capicitor
73
Peter