25
MX421 Installation Manual
Specifications
GPS Receiver
Type:
L1, C/A Code (SPS), 12-channel
continuous Tracking.
Frequency:
1575.42 MHz (L1 band)
Receiver sensitivity:
-143 dBm Costas threshold
Update rate:
1 Hz to 5 Hz
DGPS Input:
RTCM SC-104 format
Receiver maximum input signal:
-10 dBW
Satellite measurement use:
12 channel parallel automatic selection
Antenna type:
Ceramic Patch
Maximum navigation dynamics:
Maximum receiver dynamics:
2125 m.p.h. (950 m/s) 4G (39.2 m/s/s)
Time to first fix:
Cold start (no almanac or other data): 120 sec. Typical, 150 sec 90% prob
able
Warm start (almanac, last fix-position
and time known)
48 sec (typical), 60 sec 90% probable
Reacquisition time:
<40 sec. Blockage: 2 sec. (Typical)
Position accuracy:
With differential corrections
<1 meters depending on distance
from differential base station.
Without differential corrections
<3 meter CEP (SA off)
Input/Output interface:
NMEA 0183 signal levels (optically
isolated input) at 4800 baud.
Datum:
WGS84
Output messages:
NMEA V2.0, GGA, GSA,
GSV, GST, RMC, VTG and GLL
Complies with CE emissions:
CE EMC Standard EN50081-1
EN50082-1
Содержание MX421 Series
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