Kenwood TM-3530A Instruction Manual page 11

PHONE TONE VOICE
@® SQL (Squelch) control
To eliminate receiver noise during no-signal period,
slowly adjust the SQL control clockwise until the
noise disappears and the C.TUN indicator goes off
(threshold point).
When a signal is received, the squelch will open, the
C.TUN indicator will light and the speaker will oper-
ate. If the signal is weak or fades during mobile opera-
tion, readjust the squelch for constant reception. For
scan operation, this control must be set to the thre-
shold point.
@ POWER/VOL control
Power ON/OFF switch and volume control are com-
bined. Turning the control fully counterclockwise will
turn the power OFF. Clockwise rotation will increases
the audio output.
@ DCL system keyboard
See page 25.
® MIC connector (8-pin)
For connection of the supplied microphone (and or
MC-48 autopatch microphone).
Earth (GND)
® Mic @ Earth (Mic)
® sTBy (PTT)
@® DOWN © Ne
© ev 7]
Caution:
The radio may be damaged if an external source vol-
tage is applied to pins 2-5.
@® HIGH/LOW switch (1 HIGH = LOW)
HIGH setting: This setting allows the TM-2570A to
transmit up to 70 watts output, the TM-2550A/
2550E up to 45 watts output and the TM-3530A/
2530A up to 25 watts output.
LOW setting: This setting allows the TM-3530A/
2570A/2550A/ 2550E/2530A to transmit up to ap-
prox. 5 watts output.
@ SCAN switch (1. TO. CO)
When TO (Time Operated) scan has been selected the
scan will stop on an occupied channel for a specific
time frame (internally adjustable between O and 5 se-
conds). When CO (Carrier Operated) scan is selected
the radio will remain on a station until the carrier
drops out.
@® LAMP switch (=. ON)
@ REV switch
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