
MFJ-925 Super-Compact IntelliTuner Automatic Antenna Tuner Instruction Manual
© 2006-2010 MFJ Enterprises, Inc.
8
The MFJ-5114I interface cable provides control signals between an Icom radio and the MFJ
automatic tuner. Supported Icom radios are IC-706, IC-707, IC-718, IC-725, IC-728, IC-736, IC-738,
IC-746, IC-756, IC-7000, and any Icom radio that supports the Icom AH-3 or AH-4 tuner. Push and
hold the radio’s [TUNER] button for two seconds to start the tuning process. Push [TUNER] quickly
to bypass the tuner. Make sure jumper JP4 is removed for IC-7000. Refer to “Icom Radio
Interface” on page 22 for connections and operation.
Pin (Key) connects to pin 6 of Radio Interface Plu
Pin (Start) connects to pin 8 of Radio Interface Plug.
Pin (Ground) connects to pins 4 and of Radio Interface Plug.
2
Pin 3 (+13.8V) connects to pins 2 and 3 of Radio Interface Plug.
45
1g.
1
2
3
4
Figure 7. Icom Interface Cable.
The MFJ-5114K interface provides control signals between a Kenwood radio and the MFJ automatic
tuner. Supported Kenwood radios are TS-50S, TS-450S, TS-480HX, TS-570S, TS-690S, TS-850S,
TS-870S, TS-2000, and any Kenwood radio that supports the Kenwood AT-300 tuner. Push and hold
the radio’s [AT TUNE] button for one second to start the tuning process. Push the [AT TUNE]
quickly to bypass the tuner or to cancel tuning in progress. Make sure jumper JP4 is installed. Refer
to “Kenwood Radio Interface” on page 23 for connections and operation.
Note: The TS-480HX will automatically reduce its TX power to 100 watts maximum (25 watts
AM) when the radio interface is used.
Note: For the TS-2000, use the ANT 1 and AT connectors on the radio to connect an external
antenna tuner. If the external tuner is connected to the ANT 2 connector on the radio, the
external tuner will not function with the radio interface.
Pin 1 (Ground) connects to pin of Radio Interface Plug.
Pin 2 (TT) connects to pin 6 of Radio Interface Plu
Pin (Ground) connects to pin 5 of Radio Interface Plug.
Pin 5 (TS) connects to pin 8 of Radio Interface Plug.
g.
3
Pin 4 is not connected.
Pin 6 (+13.8V) connects to pins 2 and 3 of Radio Interface Plug.
4
1
3
2
4
65
Kenwood
Rear Panel View
1
2
3
4
5
6
Figure 8. Kenwood Interface Cable.
The MFJ-5114Y interface provides control signals between a Yaesu radio and the MFJ automatic
tuner. Supported Yaesu radios are FT-100, FT-450, FT-857, FT-897, FT-950, and any Yaesu radio
that supports the Yaesu FC-30 tuner. Push and hold the radio’s (TUN) or (TUNE) key to start the
tuning process. Make sure jumper JP4 is installed. Refer to “Yaesu Radio Interface/MFJ-5114Y” on
pages 24 to 27 for connections and operation.
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