MRW wrote:
On Apr 2, 11:23 am, "Philo" wrote:
Supplying DC power for a preamplifier or transverter trough the antenna
cable for instance.

I see. Does this mean that the AC signal going thru the antenna cable
is biased with a DC source?

Thanks!


No. It is just two power sources using the same conductor. That is why
there are capacitors at each end of the conductor. They permit the rf/ac
signal to pass but block the dc from passing. The satellite tv systems
use this to tune the block down converters out at the dish antenna.

Dave WD9BDZ