Trimble Outdoors AgGPS 252 - Manual (Page 60)

A Specifications
5 4 AgGPS 252 Receiver User Guide
A.2
GPS Channels
Table A.2 lists the performance characteristics of GPS channels.
Ports Two connection ports, both of which support RS-232 and CAN
Mounting Three holes for 10 mm (0.39 in) bolts
Compliance FCC Part 15 Class A, C-Tick, E-mark,
CE-mark
Table A.2 GPS channels performance
Item Description
General 12-channel, parallel tracking L1 1571.42 MHz and L2
1227.60 MHz. C/A code and carrier phase filtered measurement.
Update rate 1, 5, 10 Hz
RTK speed accuracy 0.16 kph (0.10 mph)
RTK position accuracy Horizontal 2.5 cm (0.98 in) + 2 ppm, 2 sigma, and vertical 3.7 cm
(1.46 in) + 2 ppm, 2 sigma, if all of the following criteria are
met:
• At least 5 satellites
• PDOP <4
• CMR corrections
• Standard format broadcast from a Trimble MS750, AgGPS 214,
or equivalent reference station
Differential speed accuracy 0.16 kph (0.1 mph)
Differential position
accuracy Less than 1 m (3.28 ft) horizontal if all of the following criteria
are met:
• At least 5 satellites
• PDOP <4
• RTCM SC-104 corrections
• Standard format broadcast from a Trimble MS750, AgGPS 214
,
or equivalent reference station
OmniSTAR HP speed
accuracy 0.16 kph (0.1 mph)
Table A.1 AgGPS 252 receiver (continued)
Item Description
Ag252_100B_UserGuide_ENG.book Page 54 Thursday, July 28, 2005 4:06 PM