Furuno FS-1503 - Manual (Page 22)

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1.14 Frequency Sweep
Sweep is the function where the receiver searches for a signal within a selected frequency
coverage. AGC is automatically turned on in frequency sweep.
The defaults of respective parameters are as follows:
Sweep stop signal level: 3
Sweep stop time:
2 sec
Sweep width: 100 kHz
Step frequency: 1 kHz
These can be adjusted on system codes 9951 through 9954.
Note: Sweep width is the frequency width to sweep on both sides of the selected frequency.
Sweep step is the frequency interval at which the receiver sweeps the sweep width.
Procedure
1. Select the sweep center by key operation.
2. Press the [SCAN/6] key. “SWEEP” appears and the receiver starts sweeping. To stop sweep-
ing, press the [SCAN/6] key.