Furuno FS-1503 manual Scan/sweep-stop signal level

9951	Scan/sweep-stop signal level
	When the receiver detects a signal whose level is stronger than the preset
	level it stops scanning and receives the signal. The setting on system code
	9955 is available only when “0” (SQ working condition) is selected here.
	Setting range: 0 (Squelch working condition is effective as set on code
	9955), 1-10 (S-meter level); Factory setting: 3
9952	Scan/sweep-stop time
	When a signal is detected, the receiver stops scanning/sweeping and dwells
	on this channel frequency. When “0” (RX) is selected, the receiver keeps
	receiving until the traffic goes out of this channel frequency. Define the
	dwell time between 1 and 99 sec.
	Setting range: 0 (RX), 1-99 sec; Factory setting: 2
9953	Sweep width setting range: 0.01-30000.00 kHz; Factory setting: 100.0
9954	Sweep step frequency
	Setting range: 0.01-30000.00 kHz; Factory setting: 1.00
9955	Squelch activation
	“Squelch activation” is the method by which the squelch is activated.
	Setting range: 0, 1, 2, 3; Factory setting: 3
	0: Voice
	The squelch is opened by signal frequency less than 1000 Hz (factory set-
	ting). This frequency can be changed between 500 – 2000 Hz on system
	code 9958. The loudspeaker reproduces a sound when the signal is lower
	than the preset frequency.
	Squelch OPEN:
	Audio signal is detected and a sound is reproduced through the loudspeaker.
	Squelch CLOSED:
	No input signal but only noise is coming into the receiver. The receiver is
	muted.
	1: Level
	The squelch is activated depending on “signal strength”. The factory setting
	is “5”. You can change the level between 0 - 10 on system code 9956.
	2: And
	The squelch opens when both “voice” and “signal strength” meet the set-
	ting.
	3: Or
	The squelch opens by either “voice” or “signal strength”, whichever meets
	the setting.
9956	Squelch level. Setting range: 0-10; Factory setting: 5

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