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

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 is	0-999 seconds	0 seconds (no
Smoothing	unfavorable, the GPS fix may change greatly,		position smoothing)
	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 (speed and	0-999 seconds	5 seconds
Smoothing	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	Calculation of ETA is based on average ship’s	0-999 seconds	60 seconds
Speed	speed over a given period. If the period is too
Averaging	long or too short, calculation error will result.
	Change this setting if calculation error occurs.
	The default setting is suitable for most conditions.
Latitude,	Offsets latitude position to further refine position	0.001’S –	0.0’ (no offset)
Longitude	accuracy.	9.999’N
Offset		0.001’E –
		9.999’W

(Con’t on next page)

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