7
CONNECTION AND INSTALLATION
■ Connector information
ACC
*
7
6
8
3
1
5
4
2
TUNER
1
2
3
4
5
6
7
8
9
10
DC 13.8V
1 2
3
4
5
6
61
Pin Pin name
1
CWK
CW and FSK keying input.
(NC)
(NC: AUS version)
2
AF GND
Ground line for AF signal.
3
SEND
Input/output pin.
Goes to ground when transmitting.
When grounded, transmits.
4
MOD
Modulator input.
Usable when pin 3 is grounded.
5
AF
AF detector output.
Fixed, regardless of [VOL] position.
6
SQLS
Squelch output
Goes to ground when squelch opens. Squelch closed
7
13.8 V
13.8 V output when power is ON.
8
ALC
ALC voltage input.
*
DC GND
Common ground.
Pin Pin name
1
E
Negative terminal
2
13.8V
13.8 V output
3
TUM4
Stepping motor control signal output for AT230.
4
TUM2
Stepping motor control signal output for AT230.
5
TUM1
Stepping motor control signal output for AT230.
6
TURS
Band control signal output for AT230.
7
TSCS
Preamp control signal output while scanning.
8
TUM3
Stepping motor control signal output for AT230.
9
START
Start/through signal output
10
KEY
Key signal input.
Pin Pin name
+
DC input +.
1–3
_
DC input _.
4–6
Description
Input level
Ground level
Input current
Input impedance : 5 kΩ
Input level
Output impedance: 4.7 kΩ
Output level
Squelch open
Output current
Control voltage
Input impedance : More than 10 kΩ
Description
Description
Max. power consumption 23 A typical.
Specification
: Less than 0.6 V for transmit
: –0.5 to 0.8 V
: Less than 20 mA
: Approx. 100 mV rms
: 100–300 mV rms
: Less than 0.3 V/5 mA
: More than 6.0 V/100 µA
: max. 1 A
: –3 to 0 V
Specification
–0.5 to 0.8 V during tuning
Specification
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