Trimble Outdoors AcutimeTM2000 Synchronization Kit manual Table A-69 Pdop Mask and Switch

A Trimble Standard Interface Protocol

!

Table A-69

PDOP Mask and Switch

The PDOP mask is the maximum PDOP limit for which any 2-D or

3-D position solution will be made. The PDOP switch is the level at which the receiver stops attempting a 3-D solution, and tries for a 2-D solution when in automatic 2-D, 3-D mode. The switch level has no effect on either manual mode. Raising the PDOP mask generally increases the fix density during obscuration, but the fixes with the higher PDOP are less accurate (especially with Selective Availability present). Lowering the mask improves the average accuracy at the risk of lowering the fix density.

Note – The receiver may require an initial position fix before switching to some modes.

Command Packet BB

Byte #	Item	Type	Value	Meaning	Default
0	Subcode	BYTE	0	Primary receiver
				configuration block
1	Operating	BYTE	0	Automatic	Full Position
	Dimension		1	Time only (1-SV)
			3	Horizontal (2D)
			4	Full position (3D)
			5	DGPS reference
			6	2D clock hold
			7	Overdetermined
				clock
2	DGPS Mode	BYTE	0	DGPS off	DGPS Auto
			1	DGPS only
			3	DGPS auto
3	Dynamics	BYTE	1	Land, <120 knots	Land
	Code		2	Sea, <50 knots
			3	Air, <800 knots
			4	Static

Acutime 2000 Synchronization Kit User Guide A-81