CMC electronic Esterline CMA-5024 User Manual

INSTALLATION MANUAL
CMA-5024 GLSSU
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without prior written permission by CMC Electronics Inc.
Page 28
Revision 1 Jan 19, 2009
CHARACTERISTICS SPECIFICATION
PERFORMANCE
RF Input satellite signals 1.57542 GHz (L1 band) carrier frequency, C/A code spread-spectrum modulation,
chipping rate 1.023 MHz nominal
GPS: -134 to -121 dBm at DO-301 compliant antenna preamplifier input
with a signal bandwidth of 20 MHz nominal
SBAS: -134 to -115.5 dBm at DO-301 compliant antenna preamplifier input
with a signal bandwidth from 4 to 20 MHz nominal
RF Interference conditions RTCA/DO-229D Appendix C
RF input interface Unbalanced coaxial cable, 50 Ohms nominal TNC connector
Maximum Voltage Standing wave Ratio (VSWR) at J2:
2:1 over 1572.42 to 1578.42 MHz,
4:1 over 1565.42 to 1572.42 MHz and over 1578.42 to 1585.42 MHz
Antenna power supply (short circuit protected):
9 VDC ±20%, 15 to 60 mADC, 0.3 A maximum under short-circuit
Receiver Type Super-heterodyne Radio Frequency (RF) receiver
24 parallel Narrow Correlator
1
C/A code-tracking channels
Time to First Fix Less than 75 seconds, 95% confidence, under nominal conditions:
1) Initial time within ±10 seconds, initial position within 2 kilometers
2) Valid almanac
3) At least 4 satellites are at or more than 20° above horizon
4) HDOP < 6
Horizontal Position Accuracy 32 meters radial, 95% confidence, HDOP = 1.5, outside SBAS coverage, limited
by ionospheric model error provided by GPS satellites
Measurement Accuracy
(SBAS PA Mode only)
GPS satellites: Airborne Accuracy Designator B requirements as per DO-229D
section 2.1.4.1.4
- PR error < .15 m RMS at minimum signal level
- PR error < .11 m RMS at maximum signal level
SBAS satellites: As per DO-229D section 2.1.4.1.5
- PR error < 1.8 m RMS at minimum signal level
- PR error < 1.0 m RMS at maximum signal level
Velocity Accuracy
0.33 knots (0.17m/s) horizontal, 95% confidence, steady-state, HDOP = 1.5
5.33 knots (2.74 m/s) horizontal, 95% confidence, Dynamics within normal
maneuvers (as per RTCA/DO-229D section 2.1.2.5), HDOP = 1.5
68 ft/min (1.13 ft/s) vertical, 95% confidence, steady-state, VDOP = 3.0
574.34 ft/min (9.57 ft/s) vertical, 95% confidence, Dynamics within normal
maneuvers (as per RTCA/DO-229D section 2.1.2.5), VDOP = 3.0
Figure 12. GLSSU Performance Specifications (Sheet 1 of 2)
34-52-81-1
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CMC electronic Esterline CMA-5024 Specifications

General

Brand	CMC electronic
Model	Esterline CMA-5024
Category	Accessories
Language	English