User's Manual

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９-C Quick Learning / About ALC Adjustment
7) ALC Adjustment
ALC helps the amp keep its output power at desired level. ALC is effective to avoid overdriving of
the amp, especially when high power transceiver is combined.
When adjusting ALC, use a dummy load of 2kW capacity, and /or a good antenna with SWR of
1:1 or less.
①
“ALC ADJ” pot should be, at first, turned fully counter clock-wise.
②
Select desired freq. band and CW (or RTTY) mode.
③
Increase the driving power from the radio so that required output power is achieved from the
amp.
④
Carefully increase further the drive until five to ten percent increase is obtained for output.
⑤
Turn “ALC ADJ” pot clock-wise carefully so that output gradually decreases, to reach desired
level.
(For more details, see “Hints and Tips of ALC, www.tokyohypower.com)
FUSE
FUSE
A
NT A ANT B
INPUT
ALC
SEND
TUNER
SELECT
A
C IN
FUSE
FUSE
REMOTE
D
C OUT
1
2V1 A
C
ONT
S
ERIAL
USB
GND
ALC ADJ