Re: [A/S] Replacing TV antenna?

["Don Hardman" <donhardman@xxxxxxxxxxxxx>]

Here is a great reply to the same question that I posed recently from
Charlie Burke.

Don,

Your original antenna is a Braund Skyliner. It is a collapsible version of a
home antenna. In an addition to the signal collected by the antenna there is
a TV signal amplifier at the point you plug
in the antenna lead to your TV. They are connected through the wall using a
high grade of wire referred to as 300 ohm lead. Meaning the wire has a
predictable resistance per foot.

The current single wing style is made by Winegard. It works as a very simple
signal collector with an amplifier mounted in the head of the antenna. The
TV connection point inside is not an amplifier,
rather it is a power supply that feeds 12V up to the amplifier in the head
and splits the TV signal off the same wire to feed to the TV. In order to
get a decent signal the power supply switch must
be on. The antenna kit includes 75 ohm coax cable to connect the antenna and
power supply.

Had these two been installed at the same time the signal from the Braund
would be better and under many circumstances could be used without turning
on the amplifier.

The challenge will be to replace both the antenna and the inside unit and
connect them together. The existing 300 ohm wire is anchored in the walls
and can not be easily replace. The radio antenna
feed is done at a junction in the wall behind the power supply and is also
300 ohm wire.

Suggestion to consider: Refurbish the Braund antenna and replace the exposed
300 ohm wire exposed on the roof. The point were the 300 ohm wire enters the
roof is typically a small square plate that
is screwed or riveted in to place and heavily sealed with Vulkem. One can
clean up and open up the entry point, replace the wire and put it all back
together. In the event you can't find 300 ohm
wire, a length of 75 ohm with two transformers also does the job. One
transformer at the antenna and the second sealed in the roof

Charlie