Connecting The Antenna Tuner; D Connecting An - Icom IC-7100 Advanced Instructions
Hf/vhf/uhf all mode transceiver
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Also See for IC-7100:
- Service manual addendum (294 pages) ,
- Instruction manual (197 pages) ,
- Basic manual (96 pages)
Table of Contents
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16
ANTENNA TUNER OPERATION
Connecting the antenna tuner
The AH-4 and AT-180
automatic antenna tuner
tomatically matches the IC-7100 to the connected an-
tenna.
NOTE: Before connecting, be sure to turn OFF the
transceiver's power.
D Connecting an AH-4
The optional AH-4 matches the IC-7100 to a long
wire antenna more than 7 m/23 ft long (3.5 MHz and
above).
IC-7100
Ground
To [ANT1]
D Connecting an AT-180
The optional AT-180 matches the IC-7100 to both HF
and 50 MHz antenna, and automatically tunes the an-
tenna (impedance range: 16.7 to 150 ø) during trans-
mission when the antenna SWR is less than 1:3 (HF
band).
IC-7100
Ground
To [ANT1]
To [TUNER]
Ground*
ACC cable supplied with the AT-180
To [ANT]
To [ACC]
To [TRANSCEIVER]
Coaxial cable supplied
with the AT-180
au-
• See page 16-4 for operation.
• See the AH-4 instruction manual installation and an-
tenna connection details.
AH-4
* Use as thick and short a wire as possible
between the AH-4 and ground.
• See page 16-5 for operation.
To [ACC]*
AT-180
16-2
To Long wire
Antenna
element
ANT
HF/6 m antenna
*Either of the two
external connectors
Coaxial cable
Ground
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Do you have a question about the IC-7100 and is the answer not in the manual?
Questions and answers
IC-7100 is two months old. Power suddenly cut off. Fuses are OK. No obvious damage internally. Can something with the control head cause unit not to power up?
Yes, a control head issue can cause the Icom IC-7100 to not power up. The control head receives power through the extension cable with shielded RJ45 connectors. If there is high resistance in the power wires or a poor connection in the umbilical cable, it may prevent the control head from receiving enough power to function properly. Reseating both connectors may help resolve the issue.
This answer is automatically generated
re ICOM 7100. Digital mode operations leave the mike path inoperable. What protocols are required on the DV USB computer/transceiver cable? Transceiver control head display shows USB-D when the intent is USB.