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16
4
OPERATION
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Meter function
The bar meter in the function display acts as an S-
meter (for relative signal strength) during receive and
can be selected for one of three functions during
transmit.
• Push [SET] to select the PO, ALC and SWR meter
mode.
• Measuring SWR
q
Confirm that the output power is over 30 W.
w
Push [SET] to select the SWR meter.
e
Push [MODE] to select CW or RTTY operation.
• Key down or push [PTT] to transmit; then read the ac-
tual SWR from the meter:
≤
1.5; well matched antenna
≥
1.5; check antenna or cable connection, etc.
Display
Measurement
Indication
PO
Indicates the relative RF output power.
ALC
Indicates the ALC level. When the meter
movement shows the input signal level ex-
ceeds the allowable level, the ALC limits the
RF power. In such cases, reduce the micro-
phone gain (see above).
SWR
Indicates the SWR over the transmission line.
■
Functions for transmit
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Output power and microphone gain
• Setting output power
q
Push [SET] for 1 sec. to select
quick set mode.
w
Push [
∫
UP]/[
√
DN] to select “RF POWER”.
e
Rotate the main dial to select the desired output.
• Output power is displayed in 101 steps (L, 1–99 and H)
but is continuously selectable.
• Available power
SSB/CW/RTTY:
2 (or less) to 100 W
AM:
2 (or less) to 40 W*
*Carrier power
Maximum output
power is selected.
• Setting microphone gain
Microphone gain must be adjusted properly so that
your signal does not distort when transmitted.
q
Select SSB or AM mode.
w
Push [SET] for 1 sec. to enter the quick set mode.
e
Push [
∫
UP]/[
√
DN] to select “MIC GAIN”.
r
Adjust the mic gain while speaking into the micro-
phone, so that the ALC meter does not exceed the
ALC zone.
t
Push [SET] to exit
quick set mode.
Microphone gain
is set to 50.
ALC zone
The best match is in this range.