Optional Accessories; External Automatic Antenna Tuner; (For Wire Antenna) - Yaesu FT-710 Operation Manual

Optional Accessories

FC-40 External Automatic Antenna Tuner (for Wire Antenna)
The FC-40 makes use of the control circuitry built into the transceiver, which allows the operator to control
and monitor automatic operation of the FC-40, which mounts near the antenna feedpoint. The FC-40 uses
specially selected, thermally stable components, and is housed in a waterproof case to withstand severe
environmental conditions with high reliability.
A carefully-chosen combination of solid-state switching components and high-speed relays allows the FC-
40 to match a wide variety of antennas to within a 2:1 SWR on any amateur band frequency (160 through
6 meters), typically in less than eight seconds. Transmitter power required for matching may be as little as
4 - 60 Watts, and matching settings are automatically stored in memory for instant recall when the same
frequency range is selected later.
Please see the FC-40 Operating Manual for detailed information.
Depending on the installation and location of some antennas, it may not be possible to tune to a low SWR.
• Interconnections to FT-710
After mounting the FC-40, connect the cables from the FC-40 to the ANT and TUNER jacks on the rear
panel of the FT-710 Transceiver.
Turn OFF the external power supply switch and the FT-710 power supply switch first before connecting the ca-
bles.
TUNER
100
Antenna Cable (supplied with FC-40)
Install the supplied ferrite core as
close to the connector as possible.
Control Cable (supplied with FC-40)
Antennna
Antennna
Terminal
GND Terminal
Wrap the ends of the waterproof
cap with the supplied sealing
tape to protect against moisture
ingress.