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■ Setting the ALC levels
Before first applying power, make sure all connections
required for your system are complete by referring to
chapter 2. Then, reset the linear amplifier using the
following procedure.
NOTE: Resetting CLEARS all programmed set-
tings to default values.
q Make sure the linear amplifier, exciter and auxiliary
power supply (p. 9) powers are OFF.
w While pushing [UP] and [DOWN], push [POWER]
to turn power ON.
- The internal CPU is reset.
- The remote controller shows its initial condition when
resetting is complete.
e Reset the exciter’s CI-V settings after resetting. (p.
12)
If the controller’s power is supplied from non-Icom
exciters or auxiliary power supply (p. 9), turn the
exciter or auxiliary power supply ON while pushing
[UP] and [DOWN] to reset the CPU.
[DOWN] [UP]
[POWER]
11
3
OPERATION
R CAUTION: Final FETs may be damaged if
the ALC level adjustment is set incorrectly.
NOTE: Re-adjustment is necessary when replac-
ing the exciter.
q Select an antenna which has an SWR of 1.5:1 or
better.
w Set the 1st exciter’s RF output power for the mini-
mum output.
e Be sure that the [ALC adj1] and [ALC adj2] pots on
the rear panel max. counterclockwise. (default)
r Push [POWER] to turn the linear amplifier power
ON.
t Push [UP] or [DOWN] to select an operating band
except 50 MHz band.
- Select a band which uses a well-matched 50 Ω an-
tenna.
y Push the transmit meter-2 switch one or more
times to select the ALC level meter.
- The [ALC] indicator lights.
u Push [TUNER] to turn the antenna tuner ON.
- The [TUNER] light lights.
i While adjusting the 1st exciter’s RF output power,
transmit a 100 W output power of the selected
band signal using CW or RTTY mode.
o Adjust the [ALC adj1] pot to the ALC adjustment
point as shown below.
!0 Check that the Po meter shows 1 kW output
power.
!1 Adjust the [ALC adj2] pot in the same manner
when a 2nd exciter is connected.
METER-2
ALC adjustment
point
METER-1
0
100
250
500
1K
1.5 K
0
TEMP
HOT
I
D
Po
10
20
30
40
50
60
W
A
Output power
■ When first applying power (CPU resetting)
[ALC adj1]
[ALC adj2]