Icom IC-F8100 Manuale utente
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Confidential
Icom IC-F8100 Antenna Tuner Control Protocol
Date: Aug 23rd, 2011
1. Pin Configuration
For AT-140/AT-130 (Icom’s auto-antenna tuner)
AD-119 GPIO / OPC-2205 ANT Tuner 側
Pin
No. Name Function @using AT-140 Operation
1 13.8 13.8 V output for Antenna
tuner
3 KEY Key signal input –0.5 to 0.8 V during tuning
11 START Start/through signal output
14 GND Connect to ground
Chart-1: Wiring Information
2. Control Method
Tuning operation works as below. (See Chart-2: Timing Chart)
1. Push and hold [TUNER(9)] keypad.
2. ”START” line turns from “H” to “L” for 500ms.
3. After approx. 300ms passed from “START” turned to “L”, AT-140 turns “KEY” line to “L”.
(Tuning operation start)
4. When “KEY” line turned to “L”, F8100 transmits a 10W signal on CW mode.
5. ”KEY” line turned “H” for 200ms after 20ms from the tuning operation has done, F8100
interprets that the tuning operation succeeded then “T” icon shows up on F8100 display. On
the other hand, “KEY” line turned “L” for 200ms after 20ms from the turning operation has
done, F8100 interprets that the tuning operation failed.
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Push [TUNER] keypad
500mS
START
300mS 20mS 200mS
KEY
Tuning Starts Tuning Done
TX 10W (CW)
Chart-2: Timing Chart of Tuning Operation
*Using “Tuner Through”function
1. Push [TUNER(9)] keypad while “T”icon is shown on F8100 display. When “Tuner
Through”function activates, “T”icon disappears from F8100 display.
2. “START” line turns from “H” to “L” for 70ms.
70mS
START
KEY
“KEY” line stays “H”, no answer back is initiated.
Chart-3: Timing Chart of Tuner Through Operation
H
L
H
L
OUTPUT(Tx)
OFF
H
L
H
L
OK
NG
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3. Control Signal Level
[START]
Voltage [V]
Chart-4: Signal Level of START line
[KEY]
Voltage [V]
Chart-5: Signal Level of KEY line
AT-140 Pin Configuration
5
0
More than 350 ms*
Less than 1V to start tuning
*For “Tuner Through” function ;Less than 250 ms
Approximately 5V
5
0
Automatic Tuning Process
Grounded
Approx. 5V
Time
Time
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