Yaesu FT DX 9000 CONTEST - 2, Руководство по эксплуатации

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Page 34 FT
DX
9000 C
ONTEST
O
PERATION
M
ANUAL
ANT
Connect your main antenna(s) here, using a type-M
(PL-259) plug and coaxial feedline for each. These
antenna ports are always used for transmission, and
also are used for reception unless a separate receive
antenna is also used for the VFO-A. The internal an-
tenna tuner affects only the antenna(s) connected here,
and only during transmission. These connectors uti-
lize TeflonR insulation for extreme durability and to
ensure stable impedance over the entire frequency range.
RX OUT
These BNC jacks provide output of the receiver sig-
nal lines from the Antenna jacks which are connected
to the VFO-A and VFO-B front ends.
Main Power Switch
This is main power On ( I )/Off ( O ) switch of the
FT
DX
9000 Contest. Always turn this switch on before
turning on the front panel’s POWER button.
If this switch is not turned On, the front panel Power
switch will not function.
Turning this Main Power switch On supplies voltage
to the OCXO (Crystal Oven), ensuring that frequency
stability is always maintained even when the trans-
ceiver is turned off via the front panel’s POWER
switch (#
).
AC IN
Connect the supplied 3-wire AC line cord to this
socket. AC voltages of 100-240 V may be accommo-
dated by the FT
DX
9000 Contest without any sort of
modification (universal voltage input).
CIRCUIT BREAKER Switch
This circuit breaker shuts off in the event of danger-
ously high current consumption by the transceiver.
Advice
If the Circuit Breaker interrupts power, by all means
try to determine the cause of the over-current condi-
tion before re-applying power. To restore the Circuit
Breaker after verifying that all is normal, push this
switch in until you hear a “click.”
MIC
This 8-pin jack accepts input from a microphone uti-
lizing a traditional YAESU HF-transceiver pinout.
REMOTE
By plugging in the supplied FH-2 Remote Control
Keypad to this gold-plated jack, direct access to the
FT
DX
9000 Contest CPU is provided for control func-
tions such as contest memory keying, plus frequency
and function control.
RX ANT
This type-M jack is for a separate receive-only an-
tenna. An antenna connected here can be used, by both
the VFO-A and VFO-B, when the RX ANT button
(#
) on the front panel is pressed.
If you want to use some special kind of external
bandpass filter or preamplifier, you may connect it
between the RX OUT and RX ANT jacks, as shown
in the illustration.
R
EAR
P
ANEL
2
1
ANTENNA SWITCH
(VFO-A)
ANT “1”
ANT “3”
ANT “2”
ANT “4”
RX ANT
RX OUT
(A)
RX OUT
(B)
ANTENNA SWITCH
(VFO-B)
RX ANTENNA SWITCH
(VFO-B)
RX ANTENNA SWITCH
(VFO-A)
VFO-A/-B SWITCH
TX/RX RELAY
Transmitter
Section
Receiver
Section
BPF