■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.
qMake sure the linear amplifier, exciter and auxiliary
power supply (p. 9) powers are OFF.
wWhile 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.
eReset 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
3OPERATION
RCAUTION:Final FETs may be damaged if
the ALC level adjustment is set incorrectly.
NOTE: Re-adjustment is necessary when replac-
ing the exciter.
qSelect an antenna which has an SWR of 1.5:1 or
better.
wSet the 1st exciter’s RF output power for the mini-
mum output.
eBe sure that the [ALC adj1] and [ALC adj2] pots on
the rear panel max. counterclockwise. (default)
rPush [POWER] to turn the linear amplifier power
ON.
tPush [UP] or [DOWN] to select an operating band
except 50 MHz band.
- Select a band which uses a well-matched 50 Ωan-
tenna.
yPush the transmit meter-2 switch one or more
times to select the ALC level meter.
- The [ALC] indicator lights.
uPush [TUNER] to turn the antenna tuner ON.
- The [TUNER] light lights.
iWhile adjusting the 1st exciter’s RF output power,
transmit a 100 W output power of the selected
band signal using CW or RTTY mode.
oAdjust 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
0100 250 500 1K 1.5K
0
TEMP
HOT
ID
Po 10 20 30 40 50 60 W
A
Output power

■When first applying power (CPU resetting)

[ALC adj1]
[ALC adj2]