16
ANTENNA TUNER OPERATION
16-3
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Connector information for the ACC(2) socket
D
PIN LAYOUT
PIN NO./
NAME
DESCRIPTION
SPECIFICATIONS
1
2
3
4
5
6
7
(Front panel view)
8 V
q
Regulated 8 V output when the Band Voltage
modifi cation is performed. (p. ??-??)
Same as ACC pin
q
.
GND
w
Connects to ground.
–
HSEND
e
Input/output pin.
Goes to ground when transmitting
When grounded, transmits.
Same as ACC pin
e
.
NC
r
No connection.
–
ALC
t
ALC output voltage
Same as ACC pin
y
.
NC
y
No connection.
–
13.8 V
u
13.8 V output when power is ON
Same as ACC pin
i
.
Specifi cations for the AH-4
D
Frequency coverage
: 7–54 MHz (with an AH-2b)
3.5–54 MHz (with more than
7 meters long wire)
Input impedance
: 50
ȍ
Maximum input power
: 120 W
Minimum tuning power
: 10 W (5–15 W)
Tuning accuracy
: Less than SWR 2:1
Power supply requirements : 13.8 V DC/1 A (supplied from
the transceiver’s ACC socket)
Dimensions (mm/in)
: 172(W)
u
69.5(H)
u
230(D)
6.7 (W)
u
2.7(H)
u
9.0(D)
Weight (Approximately)
: 1.2 kg; 2.6 lb
Supplied accessories
: See the AH-4 instruction
manual
Specifi cations for the AT-180
D
Frequency coverage
: 1.8–54 MHz
Input impedance
: 50
ȍ
Maximum input power
: 120 W
Minimum tuning power
: 8 W
Matching impedance range : 16.7–150
ȍ
(HF band)
20–125
ȍ
(50 MHz band)
Tuning accuracy
: Less than SWR 1.5:1
Insertion loss
: Less than 1.0 dB
(after tuning)
Power supply requirements : 13.8 V DC/1 A (supplied from
the transceiver’s ACC socket)
Dimensions (mm/in)
: 167(W)
u
58.6(H)
u
225(D)
6.6(W)
u
2.3(H)
u
8.9(D)
Weight (Approximately)
: 2.3 kg; 5.1 lb
Supplied accessories
: ACC cable (DIN 13 pins)
Coaxial cable (1 m),
Connecting the antenna tuner (Continued)