Icom IC-7600 Instruction Manual page 9

y MICROPHONE CONNECTOR [MIC]
Accepts the suppled or optonal mcrophone.
• See p. 161 for approprate mcrophones.
• See p. 23 for mcrophone connector nformaton.
u MIC GAIN CONTROL [MIC GAIN] (p. 36)
Adjusts mcrophone nput gan.
• The transmt audo tone n SSB, AM and FM modes
can be adjusted ndependently n level set mode.
(p. 121)
✔ How to set the microphone gain.
Set the [MIC GAIN] control so that the ALC meter
occasonally moves up-scale durng normal voce
transmsson n SSB, AM or FM mode.
Decreases
Push
Recommended level for
an Icom microphone
i AF CONTROL [AF] (nner control; p. 34)
Vares the audo output level of the speaker or
headphones.
Decreases
o RF POWER CONTROL [RF POWER] (p. 36)
Contnuously vares the RF output power from
mnmum to maxmum
(2 W*)
*AM mode: 1 W to 30 W
Decreases
Push
min. 2 W
(1 W for AM)
Increases
MIC GAIN
Increases
.
(100 W*)
Increases
max. 100 W
(30 W for AM)
PANEL DESCRIPTION
!0 RF GAIN CONTROL/SQUELCH CONTROL
[RF/SQL] (outer control; p. 33)
Adjusts the RF gan and squelch threshold level.
The squelch removes nose output from the speaker
(closed condton) when no sgnal s receved.
• The squelch s partcularly effectve for FM. It s also
avalable for other modes.
• 12 to 1 o'clock poston s recommended for any settng
of the [RF/SQL] control.
• The control can be set as 'Auto' (RF gan control n
SSB, CW, RTTY and PSK; squelch control n AM and
FM) or squelch control (RF gan s fxed at maxmum)
n set mode as follows. (p. 128)
SET MODE SETTING
MODE
AUTO
SSB, CW
RF GAIN
RTTY/PSK
AM, FM SQL
• When setting as RF gain/squelch control
Noise squelch (FM mode)
Squelch is
open.
RF gain
adjustable
range
• When functioning as RF gain control
(Squelch s fixed open; SSB, CW, RTTY and PSK only)
Adjustable
range
Minimum RF gain
• When functioning as squelch control
(RF gan s fixed at maxmum.)
Noise squelch (FM mode)
Noise squelch
threshold
(FM mode)
Squelch is
open.
Shallow
Whle rotatng the RF gan control, nose may be
heard. Ths comes from the DSP unt and does not
ndcate an equpment malfuncton.
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SQL RF GAIN + SQL
SQL RF GAIN + SQL
SQL RF GAIN + SQL
Recommended level
Maximum
RF gain
S-meter
squelch
Maximum
RF gain
S-meter squelch
threshold
S-meter
squelch
Deep
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