Yaesu FT-767GX, Руководство по эксплуатации

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3.0
INSTALLATION
The FT-767GX is designed for operation from AC
power only. The proper AC voltage is marked on the
rear panel.
3.1
Preliminary Inspection
Inspect the transceiver thoroughly immediately upon
opening the packing carton. Check to see that all
controls and switches work freely, and inspect the
cabinet for any signs o f damage. I f any damage is
found document it completely, and contact the
shipping company (or dealer, i f you purchased it over
the counter) right away. Save the packing materials
for possible use at a later date.
3.2
Power Connection
Before connecting power, check the AC voltage
label on the rear panel, to make sure it matches your
local line voltage. If your mains voltage is different,
the taps on the power transformer inside the trans­
ceiver must be changed. Follow the procedure on
page 12, or contact your dealer for assistance.
NOTE: if you change the transformer wiring from
I 17V or below to 220 V or above, or vice-versa, you
must change the fuse in the fuse holder. The lower
voltages require a IOA fuse, and the higher voltages
require a 5A fuse.
PE RMANENT DAMAGE WILL RESU LT IF
IMP ROPE R AC SUPP LY VO LT AGE IS
APPLIED TO THE T R ANSCEIVE R. YOU R
WARRANTY DOES NOT COVE R D AM­
AGE CAUSED BY APPLICA TION OF
IMP ROPE R SUPPLY VO LTAGE, O R USE
OF AN IMP ROPE R FUSE.
After making certain the AC voltage is correct for
your mains voltage, and that the correct fuse is
installed in the fuse holder, connect the AC power
cord to the 3-pin AC jack on the rear panel. Do not
connec;t the other end. of the power cord to the wall
outlet until all other transceiver interconnections
have been made.
- 14
3.3
Transceiver Location and Grounding
When setting up the FT-767GX make sure there is
plenty of ventilation around the top and rear of the
cabinet. The cooling system o f the FT-767GX must
be free to draw cool air in at the lower rear of the
transceiver, and to expel warm air out of the top,
toward the back. Do not place the transceiver on top
of another heat-generating device such as a linear
amplifier, and do not place equipment, books or
papers on top of the transceiver. Avoid heating vents
and window locations that could expose the trans­
ceiver to excessive direct sunlight, especially in hot
climates.
Connect the GND terminal on the rear panel to a
good earth ground, using a heavy braided cable of
the shortest length possible. All other station equip­
ment should be connected to the same grounding
cable, as close together as practical. If you use a
computer with or near the FT-767GX, you may need
to experiment with ground wiring to suppress com­
puter noise in the receiver.
3.4
Antenna Considerations
The automatic antenna tuner in the FT-767GX is
capable o f matching antennas with an SW R o f up to
3: I or more (on the amateur bands above 80m) to the
transmitter. Nevertheless, best performance for both
reception and transmission will be had with an
antenna designed to provide a 50-ohm unbalanced
resistive load at the operating frequency. An antenna
that is not designed for resonance at the operating
frequency may present too high an SW R to allow
proper matching with the built-in antenna tuner, in
which case the antenna itself should be readjusted,
or an outboard antenna tuner used. I f the tuner is
unable to bring the SW R down to an acceptable
level, attempting to transmit will result in an auto­
matic reduction in power output and increased losses
in the feedline. Operation under such conditions is
not recommended: it is better to install another
antenna designed for that band. Also, if your antenna
has a balanced feedpoint and you use a balanced
feedline, install a balun between the transceiver
ANT jack and the feedline.
3.5
I nterconnection of Accessories
The diagrams on the following pages show
interconnections of various accessories. If
you have any questions on connecting devices
not shown, contact your dealer for advice.