13
2
PANEL DESCRIPTION
!2 ANTENNA CONNECTOR 1 [ANT1]
!3 ANTENNA CONNECTOR 2 [ANT2] (pgs. 14, 15)
Accept a 50 Ω antenna with a PL-259 connector.
When using an optional AH-4 HF/50 MHz AUTO-
MATIC ANTENNA TUNER
or AH-3 HF AUTOMATIC AN-
TENNA TUNER
, connect it to the [ANT1] connector.
The internal antenna tuner activates for [ANT2] and
deactivates for [ANT1] when connecting the AH-4 or
AH-3.
DACC SOCKETS
!4 GROUND TERMINAL [GND] (pgs. 14, 15)
Connect this terminal to a ground to prevent electri-
cal shocks, TVI, BCI and other problems.
If the CW side tone level limit or beep level limit is in
use, the CW side tone or beep tone decreases from
the fixed level when the [AF] control is rotated above
a specified level, respectively. (p. 65)
ACC (1)
PIN No.
NAME DESCRIPTION SPECIFICATIONS
1
2
3
4
5
6
7
8
“High” level : More than 2.4 V
1 RTTY Controls RTTY keying “Low” level : Less than 0.6 V
Output current : Less than 2 mA
2 GND Connects to ground. Connected in parallel with ACC(2) pin 2.
Input/output pin.
Ground level : –0.5 V to 0.8 V
3 SEND Goes to ground when transmitting.
Output current : Less than 20 mA
When grounded, transmits.
Input current (Tx) : Less than 200 mA
Connected in parallel with ACC(2) pin 3.
4 MOD
Modulator input. Input impedance : 10 kΩ
Connects to a modulator. Input level : Approx. 100 mV rms
AF detector output.
Output impedance : 4.7 kΩ
5 AF Fixed, regardless of [AF] position
Output level : 100–300 mV rms
in default settings. (see notes below)
6 SQLS
Squelch output. SQL open : Less than 0.3 V/5 mA
Goes to ground when squelch opens.
SQL closed : More than 6.0 V/100 µA
7 13.8 V 13.8 V output when power is ON.
Output current : Max. 1 A
Connected in parallel with ACC(2) pin 7.
Control voltage : –4 V to 0 V
8 ALC ALC voltage input. Input impedance : More than 10 kΩ
Connected in parallel with ACC(2) pin 5.
ACC
PIN No.
NAME DESCRIPTION SPECIFICATIONS
1
2
3
4
5
6
7
1 8 V Regulated 8 V output.
Output voltage : 8 V ±0.3 V
Output current : Less than 10 mA
2 GND Same as ACC(1) pin 2.
3 SEND Same as ACC(1) pin 3.
4 BAND
Band voltage output.
Output voltage : 0 to 8.0 V
(Varies with amateur band)
5 ALC Same as ACC (1) pin 8.
6TRV
Activates [XVERT] input/output Input impedance : More than 10 kΩ
when “HIGH” voltage is applied. Input voltage : 2 to 13.8 V
7
13.8 V
Same as ACC(1) pin 7.
Rear panel view
Rear panel view
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