Furuno 1833, 1943, 1933 manual Contents of GPS setup menu con’t from previous

5. CUSTOMIZING YOUR UNIT

Contents of GPS setup menu (con’t from previous page)

Item	Description	Settings	Default Setting
Position	When the DOP or receiving condition	0-999 seconds	0 seconds (no
Smoothing	is unfavorable, the GPS fix may		position smoothing)
	change greatly, even if the vessel is
	not moving. This change can be
	reduced by smoothing the raw GPS
	fixes. A setting between 000 to 999 is
	available. The higher the setting the
	more smoothed the raw data. If the
	setting is too high, the response time
	required to show a change of latitude
	and longitude will be too long. This is
	especially noticeable if the vessel is
	moving fast. Increase the setting if
	the GPS fix changes randomly.
Spd/Cse	During position fixing, ship’s velocity	0-999 seconds	5 seconds
Smoothing	(speed and course) is directly
	measured by receiving GPS satellite
	signals. The raw velocity data may
	vary too much depending on
	receiving conditions and other
	factors. You can reduce this random
	variance by increasing the
	smoothing. The higher the smoothing
	setting, the more the raw data will be
	averaged. If this setting is high, the
	response to speed and course
	changes will slow. For no smoothing,
	enter all zeroes.
GPS Speed	Calculation of ETA is based on	0-9999 seconds	60 seconds
Averaging	average ship’s speed over a given
	period. If the period is too long or too
	short, calculation error will result.
	Change this setting if calculation
	error occurs. The default setting is
	suitable for most conditions.
Latitude Offset	Offsets latitude position to further	9.999’S – 9.999’N	0.0’ (no offset)
	refine position accuracy. Use the
	N < - - > S soft key to switch
	coordinate.
Longitude	As above but for longitude. Use the	9.999’E – 9.999’W	0.0’ (no offset)
Offset	W < - - > E soft key to switch
	coordinate.

(Con’t on next page)

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