Performance Characteristics
      Conformity
      Dynamics
      Performance
      Integrity
      Design Assurance
      Interfaces
      Sensitivity

Environmental Characteristics

Electrical Characteristics

Physical Characteristics

NexNav Block Diagram

 

 

 

Performance Characteristics                                 top

Conformity                                                                        top

RTCA	DO-229D, DO-228A, DO-178B, DO-254, DO-160E
FAA	TSO-C145b, Class Beta-1, 2 and 3

Dynamics                                                                         top

Speed, Acceleration and Jerk

Per DO-229D requirements for en-route, terminal, LNAV, LNAV / VNAV and LP/ LPV modes of operation

Performance                                                                      top

General	GPS L1 C/A code sensor with SBAS capability
Number of channels	12 GPS and 3 SBAS parallel channels
Horizontal Position Accuracy	3 m, RMS
Differential Position Accuracy	1 m, RMS
Vertical Position Accuracy	5 m, RMS
Velocity Accuracy	0.1 m/s, RMS
Pseudorange Accuracy	15 cm, RMS
Time Accuracy	50 ns, RMS
Update rate	5 Hz

Integrity                                                                            top

RAIM	SBAS integrity incorporated
FD / FDE	FD / FDE incorporated
Alert	Navigation alerts per DO-229D through hardware and software
BITE	Comprehensive power-on and online self-tests

Design Assurance                                                             top

Hardware	Per DO-254, Level B
Software	Per DO-178B, Level B

Interfaces                                                                          top

Input / Output (custom I/O available)	Separate RS-232 host and maintenance ports 4 input and 4 output discretes TTL and RS-422 time mark
Messages	Customized protocol
Upgrades	Software upgrades through serial port

Sensitivity                                                                          top

GPS Acquisition	-136 dBm
GPS Tracking	-140 dBm

Environmental Charateristics                                  top

Temperature	-55°C to +85°C
Altitude	55,000 ft (16,800 m) MSL
Temp. variation	DO-160E, Category B
Humidity	DO-160E, Category B

Electrical Characteristics                                          top

Power Supply	5 Vdc
Power	5 W (typical)

Physical Characteristics                                           top

Dimension	5” x 3” x 1” (standard)
Weight	150 grams (CCA only)
Antenna Connector	SMA RF connector
I / O Connector	30 pin dual row male header

NexNav Block Diagram                                            top