Furuno FS-2575, Руководство оператора

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2. SSB RADIOTELEPHONE
2-3
Frequency
1. Rotate the ENTER knob to select TX or RX as appropriate and then press the ENTER
knob.
2182.0
TX RX
2182.00
2. Enter frequency by one of the methods below.
Entering frequency with the numeric keys:
Use the numeric keys to enter frequency and then press the ENTER knob. For example,
to enter 2161 kHz, key in 2 , 1 , 6 , 1 , 0 . (Keying in 2-1-6-1 will set 216.1 kHz.) Be sure to
include zero for 100 Hz place.
Selecting frequency with the ENTER knob (for RX only):
1) Use or key to change the position which the cursor covers.
2) Rotate the ENTER knob to set frequency desired.
3) Press the ENTER knob to close the window.
Note : When TX and RX frequencies are different, enter TX and RX in that order:
TX: TX/RX frequencies
RX: RX frequency only
2.3 Transmitting
After selecting class of emission and frequency, you can transmit by pressing the PTT
switch on the handset. TX is shown on the screen during transmitting.
2.3.1 Transmitting procedure
Maximum transmission power is achieved only when the antenna impedance and
transmitter impedance match each other. Because the antenna impedance changes with
frequency, antenna impedance matching with the transmitter impedance is done with the
antenna coupler. The antenna coupler automatically tunes the transmitter to a wide range of
different antenna lengths. The available range is;
•
Wire antenna 10 to 18 meters long (horizontal part)
•
Whip antenna 8 meters long (Horizontal feeder is 2 meters or longer.)
•
Whip antenna 10 meters long
To initiate the tuning, do the following:
1. Press the
PTT switch on the handset. Tuning is automatically adjusted at first
transmission after frequency is changed. For manual tuning, press the 0/TUNE key on
the RT screen. If tuning fails, the message “TUNE NG” appears and the output power is
automatically set to LOW (for FS-2575) or LOW2 (for FS-5075).
2. Hold the handset close to your mouth, press the PTT switch and speak clearly.
Note: When tuning is initiated in the two control units system, the screen of the idle control
unit shows “OCCUPIED (CONTROLLER 1 (or 2)).” In this case, only the DISTRESS key is
operative on the idle control unit.