External Automatic Antenna Tuner - Yaesu FT-950 Operating Manual

Hf/50 mhz transceiver
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I
NSTALLATION OF
FC-40 E
XTERNAL
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 automati-
cally 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-950
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-950 Transceiver.
ANT
1
2
-TUNE
TO
FROM
ROT
GND
Install the supplied fer-
rite core as close to the
connector as possible.
Note
When the FC-40 is connected to the FT-950, TX
GND (pin 2) of the TUNER jack and the LINEAR
jack (pin 2) are common circuits.
Therefore, the maximum voltage at TX GND (pin
2) of the LINEAR jack must not exceed +5V.
Page 122
O
PTIONAL
A
A
UTOMATIC
Antenna Cable (5 m)
DC IN
INPUT: DC 13.8 V
22 A
EXT
LINEAR
TUNER
PTT
REC
REM
SPKR
KEY
A
CCESSORIES
(
T
NTENNA
UNER
FOR
Antenna Terminal
-TUNE
DMU
CAT
Control Cable (5 m)
FT-950 O
)
W
A
IRE
NTENNA
GND
Wrap the ends of the
waterproof cap with the
supplied sealing tape to
protect against mois-
ture ingress.
M
PERATING
ANUAL

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