Yaesu FT-847, Руководство по эксплуатации

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81
FT-847 O
PERATING
M
ANUAL
Monitoring of HF WeatherFax broadcasts is easily
accomplished using the FT-847.
•
Before proceeding, be certain that the WeatherFax
demodulator is properly connected to the rear panel
DATA IN/OUT
jack (only the “RX” ring and
ground contacts are required; the tip connector is
not used).
‚
Set the operating mode to USB by pushing the
[
SSB
] key, as needed.
ƒ
Set the transceiver to the VFO mode (unless a
WeatherFax channel has been programmed into a
Memory channel). Now, using the keypad (or Main
Dial, in the Memory mode), select the operating
frequency of the station transmitting the
WeatherFax broadcast. Note that, in the USB mode,
the frequency you should program onto the display
is typically 1.90 kHz
below the station’s “assigned”
frequency. Thus, for a WeatherFax station assigned
to 8.682.0 MHz, tune to 8.680.1 MHz.
„
When the WeatherFax broadcast begins, no further
operator intervention should be needed from the
transceiver standpoint. The audio level from the
DATA IN/OUT
jack on the rear of the transceiver
is fixed, and cannot be adjusted. Fine adjustments
in the gray-scale and the frame alignment are ac-
complished using the computer and software con-
nected to your WeatherFax demodulator.
WeatherFax Monitoring