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Icom AT-140 - Phase Detector Circuit Adjustment; Impedance Detector Circuit Adjustment; Forward Detector Circuit Adjustment; SWR Detector Circuit Adjustment

Icom AT-140
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2001 NEW2001 NEW
6
3
INSTALLATIONS
PL-259 connector
q Slide the coupling ring down.
Strip the cable jacket and tin the shield.
•Tintheexposedbraidandthenpulloutthejacket.
Coupling
30 mm
10 mm (tin)
w Strip the cable as shown below.
Tin the center conductor.
1–2 mm
10 mm
tin
e Slide the connector body over the cable and sol-
der it.
Solder
Solder
NOTE: Use a soldering iron with enough heating
power to securely solder the ground braid and
body. Otherwise the connection may be loose, and
communication trouble may occur.
r Screw the coupling ring onto the connector body.
Waterproofing the antenna connection
CAUTION: If you skip the following steps, moisture
will get into the connector, and this could damage
the antenna tuner.
q Cut off just the top of the weatherproof cap, and
pass the antenna wire through the cap.
Antenna wire
Weatherproof cap
w Insert the antenna wire into the opening of the
crimp-on wire terminal.
•Crimporsoldertheantennawire.
Crimp
Solder
e Put the crimp-on wire terminal, star washer, and
wing nut on the base nut, in that order, then,
tighten the wing nut.
•Makesurethebasenutistightenedrmly,beforeyou
tighten the wing nut. (See the Fig.1 to the right.)
•Carefullybendthewireterminalup,afteryoutighten
the wing nut. (See the Fig.2 to the right.)
Fig.1
Wing nut
Crimp-on wire terminal
Star washer
Base nut
Antenna tuner
r Place the weatherproof cap over as much of the
insulator as possible.
•Howfardownitwillgodependsontheheightofthe
wing nut.
t Start wrapping the rubber vulcanizing tape at the
bottom of the insulator, then the weatherproof cap
and finally the antenna wire to prevent water seep-
ing.
•Wrapelectricaltape*overtherubbervulcanizingtape
to secure waterproofing.
* The electrical tape is not supplied with the AT-140.
Fig.2
Insulator
e
t
r
Rubber
vulcanizing tape
Bend this part
up, AFTER
you tighten
the wing nut.
30 mm (1.2 inches) 10 mm (0.4 inches) 1–2 mm (0.04–0.08 inches)

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