Included with the antenna is a special mix
#31 ferrite core that needs to be mounted
on the control wire as close to the
antenna
as possible. Loop the wire
through the choke at least 3 times.
(Picture 11)
It is used to decouple the
control cable from the antenna. If you fail
to install this ferrite core acts like a single
radial and the antenna will be untunable.
The next thing is the matching coil. This coil must go
from the antenna base to the immediate ground.
The MT-1 antenna bracket provides this connection.
On a loaded mobile antenna below 10 MHz some form
of impedance matching is required. Pictured is the
matching coil on MT-1 bracket (Picture 12).
The up/down switch (Picture 13) that comes
with the antenna package will plug directly into
the control cable to the antenna, then there will
be 2 wires left on the switch. One will be white
with red dots and one red with black dots. This
system is designed for a standard 12vdc
system. Keep in mind polarity of these two wires
are not important. With the switch mounted up
(wire to bottom) you can wire the red wire with
black stripes to positive side of your 12vdc
system, and the white wire with red stripes to
the negative side. This will allow the antenna to
go up while you press the up button (this is
the way most wire up to their systems). Up
on the switch means the antenna is going UP in the band and DOWN in the bottom (this
is the way most wire up to their systems). Up on the switch means the antennas is
going up in height and Down in frequency. If you prefer that is reversed all you have to
do is reverse the connections. Be sure you add the fuse to the positive side.
Most installs:
Red with black dots – 12 volt positive
White with red dots – 12 volt ground
Picture 13
Picture 11
