Emergency Tuning (At-130E) - Icom AT-130 Instruction Manual

13.6 V DC cable
Disconnect 13.6 V DC cable from
the [13.6] terminal. Reconnect
after emergency tuning.
J2
J24
For the AT-130E, before operation, perform emergency
tuning setting.
WARNING:
NEVER
touch internal parts while
transmitting. Stop transmitting when internal adjust-
ments are performed. 2182 kHz is used for distress
calls, etc. Listen on the frequency before transmitting.
1) Connect an SWR meter between an HF transceiver
and the AT-130E.
2) Remove the top cover of the AT-130E.
3) Select 2182 kHz and AM (H3E) mode for the HF
transceiver.
• Refer to each transceiver's instruction manual for details.
CAUTION: If another frequency is selected, the
AT-130E may be damaged.
Pin connections
Set the pin connections on J2, J24 and J25 to obtain
minimum SWR setting.
4) Disconnect the 13.6 V DC cable from the [13.6]
terminal. Tape the end of the wire.
• NEVER
allow the 13.6 V DC cable end to touch any other
parts.
5) Disconnect all 6 pins on J2, J24 and J25 as shown
below.
6) Connect a red cable to a pin (J7-J22) where minimum
SWR reading is obtained.
• DO NOT transmit for more than 5 sec. to avoid damage to
the HF transceiver.
7) Connect pins on J2, J24 and J25 to obtain a minimum
SWR reading.
• DO NOT transmit for more than 5 sec.
• "A" has the minimum capacity.
• Selection in alphabetical order may speedup tuning.
8) Connect the 13.6 V DC cable to the [13.6] terminal.
9) Replace the top cover of the AT-130E.
Red cable positioning
Connect to a pin (J7—J22)
where a minimum SWR
reading is obtained.
. . •
Position the red
cable as shown.
J2, J24 and J25
Refer to below left
for details.
U.
•
•
•
a
•
J25
The condenser is
disconnected.
The letters, A-F, indicate the capacity of the tuning
condenser. "A" has the minimum capacity.
•
•
•
•
Incorrect cable
positioning
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
The condenser is
connected.
TJLT-J.
1• •
1
11
INTERNAL SETTINGS
3
• Emergency tuning
(AT-130E)
6