Specifications

AL-100 Operations Manual Version 1.0
7
INSTALLATION
The AL-100 tuner is designed for indoor use only; it is not water resistant. If
you use it outdoors (Field Day, for example) you must protect it from rain. The
AL-100 is designed for use with coax-fed antennas. You need a balun to use
your AL-100 with longwires or antennas fed with ladder line. The LDG RBA-
4:1 or RBA-1:1 are ideal, depending on the antenna and transmission line
used.
Always turn your radio off before plugging or unplugging anything. The radio
may be damaged if cables are connected or disconnected while the power is
on.
Your AL-100 tuner is compatible with the following Alinco HF transceivers:
• DX-70
• DX-77
• DX-SR8
DX-SR9
WARNING: Do not attempt to use the AL-100’s radio interface cable with any
other transceivers, even if the plug fits. At best, the AL-100 simply won’t work
with these radios. At worst, it could cause damage to either the AL-100, the
radio, or both.
Connect the ANT output of the transceiver to the TX input on the rear of the
AL-100. Then connect the antenna feedline to the Ant jack on the AL-100.
Carefully line up the guide pin on the 4-pin mini-DIN plug on the provided
cable with the socket on the back of the AL-100 and connect. Connect the 5-
pin plug on the other end of the cable to the jack marked “Tuner” on the rear
of the Alinco transceiver. Grounding
the AL-100 tuner will enhance its
performance and safety. LDG
recommends that you connect your
tuner to a suitable ground; a common
ground rod connected to buried
radials is preferred, but a single
ground rod, a cold water pipe, or the
screw that holds the cover on an AC
outlet can provide a serviceable
ground. LDG strongly recommends
the use of a properly installed, high
quality lightning arrestor on all
antenna cables.
Your
AL
-
100
is
not
water resistant; keep
it dry.
The
AL
-
100
radio
interface cable won’t
work with any other
radios.
Connect
your
AL
-
100 to your antenna
and transceiver
using the shortest
practical coax runs.
Turn
your
radio
off
before you install
the tuner.