Page 143
FT-
991
Operating Manual
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.
Interconnections to FT-991A
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-991A
Transceiver.
Antenna Cable (5 m)
Control Cable (5 m)
GND
ANT
Antenna Terminal
Install the supplied ferrite
core as close to the con-
nector as possible.
Wrap the ends of the waterproof
cap with the supplied sealing
tape to protect against moisture
ingress.
Installation of Optional Accessories
Содержание FT-991A
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