Icom IC-7100, Advanced Instructions

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16
ANTENNA TUNER OPERATION
16-3
D Connector information for the AT-180 ACC(2) socket
PIN LAYOUT
PIN NO./
NAME
DESCRIPTION SPECIFICATIONS
ACC 2
1
2
3
4
5
6 7
(Rear panel view)
8 V
q
Regulated 8 V output when the Band Voltage
modification is performed.
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
.
D Specifications for the AH-4
Frequency coverage : 7–54 MHz (with an AH-2b)
3.5–54 MHz (with more than
7 meters long wire)
Input impedance : 50
Ω
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)
×
69.5(H)
×
230(D)
6.7 (W)
×
2.7(H)
×
9.0(D)
Weight (Approximately) : 1.2 kg; 2.6 lb
Supplied accessories
: See the AH-4 instruction
manual
D
Specifications for the AT-180
Frequency coverage : 1.8–54 MHz
Input impedance : 50
Ω
Maximum input power : 120 W
Minimum tuning power : 8 W
Matching impedance range : 16.7–150
Ω
(HF band)
20–125
Ω
(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)
×
58.6(H)
×
225(D)
6.6(W)
×
2.3(H)
×
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)