![Icom AT-140 [9/12] Control cable signals](/img/pdf.png)
Icom AT-140 [9/12] Control cable signals
![Icom AT-140 [9/12] Control cable signals](/views2/1074351/page9/bg9.png)
3
6
CONTROL CABLE SIGNALS
■ Terminal information
Consider the following points when using a non-Icom
transceiver.
Start voltage [STAR]
When a start voltage (less than 1 V) is received, the
AT-140 begins automatic tuning.
Key voltage [KEY]
During automatic tuning, the AT-140 grounds the key
voltage line, and the HF transceiver reduces output
power.
If the key voltage is more than 8 V, switch the mode
switch (S1) to OFF mode (lower position).
8
6
4
2
0
Time
Key
voltage
[V]
Grounded
Approx. 7.5 V
During automatic tuning
8
6
4
2
0
Time
More than
350 msec.*
Approx. 7.5 V
Less than 1 V to
start tuning
Start
voltage
[V]
*For tuner through operation; Less than 250 msec.
[KEY]
[STAR]
[13.6]
[E]
Terminal Description
[KEY] Key voltage. Grounded during tuning.
Max. current drain 100 mA.
[13.6] 13.6 V DC + input terminal.
Max. current drain 2 A
[STAR] Receives start voltage.
Max. current drain 1 mA
[E] Ground terminal for above signals.
Mode switch (S1)
[E]
[13.6]
[STAR]
[KEY]
NORMAL mode
OFF mode
S1
Содержание
- At 140 1
- Instruction manual 1
- At 140 hf auto matic antenna tune 2
- Explicit definitions 2
- Foreword 2
- Important 2
- Precautions 2
- R danger high voltage neve 2
- Read all instruction 2
- Save this instruction manual 2
- Supplied accessories 2
- Features 3
- Miscellaneous items 3
- Table of contents 3
- Antenna system 4
- I antenna for land operation 4
- I antenna for ship 4
- Required antenna element length 4
- Undesirable antenna element lengths avoi 4
- Counterpoise 5
- Danger neve 5
- Electrolysis 5
- Good ground points 5
- Ground cable 5
- I coaxial cable 5
- I ground and counterpoise 5
- Ideal ground points 5
- Important 5
- R warning 5
- Undesirable ground points avoi 5
- Why a ship s ground is required 5
- Between the at 140 and hf marine transceiver con nect 4 control signal lines as shown below to prevent rf feedback use a 4 conductor shielded cable con nect the shield line to the gnd terminal on the trans ceiver icom offers 10 m 32 ft long optional control cables as at right 6
- D when connecting to icom ic m700 ty ic 78 6
- D when connecting to icom ic m710 rt ic m700pro 6
- D when connecting to icom ic m802 6
- E mount the at 140 in the desired location 6
- I control cable 6
- I installation outline 6
- Installations 6
- Opc 566 for ic m710 rt m700pro opc 1147 for ic m802 6
- Q connect a control cable and 4 conductor shielded cable 6
- R connect the control cable and the coaxial between the transceiver and the at 140 6
- Refer to p 6 terminal information for details 6
- T connect an antenna ship s ground or counter poise 6
- W connect and solder the pl 259 connector to the coaxial cable 6
- Attach the at 140 either horizontally or vertically with one of the water drains facing downwards after mounting remove the screw in the water drain 7
- E slide the connector body over the cable and sol der as shown below 7
- I mounting 7
- I pl 259 connector 7
- Installations 7
- Mount the at 140 securely with the supplied nuts and bolts otherwise vibrations and shocks due to waves etc could loosen the antenna tuner making if fall causing personal injury 7
- Mounting on a mast metal pole 7
- Mounting on a flat surface 7
- Q slide the coupling ring over the coaxial cable strip the cable jacket and pull back to reveal 10 mm of braid 7
- R screw the coupling ring onto the connector body 7
- W strip the cable as shown below soft solder the cen ter conductor the entire length of the exposed braid 7
- Warning 7
- I cable connections 8
- Important at 140 8
- Control cable signals 9
- I terminal information 9
- Key voltage key 9
- Start voltage star 9
- I transceiver setting 10
- I specifications 11
- I unit description 11
- Unit description and specifications 11
- 1 32 kamiminami hirano ku osaka 547 0003 japan 12
- A 6175h 1ex printed in japan 2002 icom inc 12
- Asia icom inc 12
- Beijing icom ltd 12
- Icom america inc 12
- Icom australia pty ltd 12
- Icom canada 12
- Icom europe gmbh 12
- Icom france s a 12
- Icom new zealand 12
- Icom spain s l 12
- Icom uk ltd 12
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