LDG AL-100 Operation Manual - Operation
AL-100 Operations Manual
Version 1.0
8
OPERATION
Power-Up
Turn on the transceiver. The LED on the front panel of the AL-100 will blink
once. If it doesn’t, turn off the radio and recheck your connections.
Basic Tuning Operation
Tuning operation is controlled by the
FUNC
/
TUNE
buttons on your Alinco
transceiver. The radio will transmit a carrier and the tuner will perform an
automatic tuning cycle. You can also control your tuner from its front panel
using the
Tune
button
1
.
There are two types of tuning cycle: memory tuning and full tuning. Memory
tuning restores tuning parameters stored after a previous successful tune on
or near the present frequency. Memory tuning is the default mode.
A full tuning cycle “starts from scratch”
, usually
on a new frequency, and
begins a tuning sequence in which the AL-100 rapidly tries various
combinations of inductance and capacitance to find the best match possible.
If an acceptable match is found (SWR
memory associated with the current frequency so that they may be quickly
recalled in the future via a memory tuning cycle. In this manner, the AL-100
“learns” your preferences; the longer you use it, the more closely it adapts
itself to your favorite bands, frequencies and antenna characteristics.
You will probably use memory tuning most of the time; it takes advantage of
any saved tuning settings, but automatically reverts to a full tuning cycle if no
stored data is available. At the end of a tuning cycle the carrier is held for one
second so that you can read the final SWR on the transceiver’s internal SWR
meter or another inline SWR meter between the radio and tuner. The Status
LED will also indicate the status of the tuning cycle.
Memory Tuning
To start an automatic tuning cycle press
FUNC
/
TUNE
on your Alinco
transceiver as described in your Alinco radio manual. The AL-100 will cause
the transceiver to transmit a carrier for the duration of the tuning cycle, and
the Status LED on the AL-100 will light while tuning. The AL-100 will perform
1
For DX-70 and DX-77 the radio must be in AM or FM mode. The DX-SR8 does not work with the tune button
on the tuner.
Your
AL-100
is
powered
by
your
radio.
You can let your AL-
100
handle
tuning
automatically, or you
can start a tuning
cycle
manually
if
needed.
Your AL-100 saves
tuning
parameters
so
it
can
tune
instantly when you
return
to
that
frequency.
Memory tuning is
the default mode;
you
’
ll probably use it
most of the time.