Icom IC-7200 Instruction Manual page 9

SPCH
!5 SPCH•LOCK KEY
➥ Push to announce the selected frequency and
S-meter level by the speech synthesizer. (p. 32)
• The parameters to be announced can be selected in
the set mode. (p. 77)
➥ Push and hold for 1 sec. to turn the dial lock
function ON or OFF. (p. 29)
• The dial lock function electronically locks the main
dial.
• " " appears while the dial lock function is ON.
!6 POWER KEY
➥ Push to turn power ON.
• Turn the DC power supply ON in advance.
➥ Push and hold for 1 sec. to turn power OFF.
!7 TUNER KEY
(p. 67)
TUNER
➥ Push to turn the automatic antenna tuner func-
tion ON or OFF.
• An optional antenna tuner must be connected.
• " " appears on the display.
➥ Push and hold for 1 sec. to manually tune the
antenna tuner.
• An optional antenna tuner must be connected.
• When the tuner cannot tune the antenna, the tuning
circuit is bypassed automatically after 20 sec.
!8 RF GAIN/SQUELCH CONTROL [RF/SQL]
(outer control; p. 30)
➥ Adjusts the RF gain and squelch threshold level.
➥ The squelch removes noise output from the
speaker (closed condition) when no signal is re-
ceived.
• The squelch is available for all modes.
• The control can be set as the squelch plus RF gain
controls, squelch control only (RF gain is fixed at
maximum) or Auto (RF gain control in SSB, CW and
RTTY; squelch control in AM) in set mode.
SET MODE SETTING
MODE
AUTO
SSB, CW
RF GAIN
RTTY
AM SQL
SQL RF + SQL
SQL RF GAIN + SQL
SQL RF GAIN + SQL
PANEL DESCRIPTION
• When functioning as RF GAIN/SQL control
Squelch is open.
RF gain adjustable
range
• When functioning as RF GAIN control
(Squelch is fixed open; SSB, CW, RTTY only)
Maximum RF gain
Adjustable range
Minimum RF gain
• When functioning as SQL control
(RF gain is fixed at maximum.)
Squelch is open.
Lowest threshold
!9 AF CONTROL [AF] (inner control; p. 29)
Varies the audio output level from the speaker.
Audio output
decreases
@0 HEADPHONE JACK [PHONES]
Accepts headphones with 8–16
• Output power: 5 mW with an 8 Ω load.
• When headphones are connected, no receive audio
comes from the speaker.
@1 MICROPHONE CONNECTOR [MIC]
Accepts supplied or optional microphone.
• See p. 11 for appropriate microphones and microphone
connector information.
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S-meter squelch
threshold
Maximum RF gain
S-meter squelch
S-meter squelch
threshold
S-meter squelch
Highest threshold
Audio output
increases
Ω impedance.
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