Output Power: 150 mW
Transmit Signal Length: 1.5 Seconds
Temp Range: u201340 to +50 Degrees Celsius
Frequency: 1611.25 to 1618.75MHz
Modulation: BPSK-modulated PRN Code
GPS Engine: u03bcBlox 16 Channel
GPS Accuracy: +/u2014 10m horz, +/u2014 25 vert
GPS Antenna: Active
GPS Datum: WGS84
VHF Power Output (VHF Mortality Available): 1u20142mW, 30u201445ppm
Specified accuracy is 2.5 meters CEP and 5 meters SEP. CEP is Circular Error Probability. It is the radius of a horizontal circle, centered at the true antenna position, containing 50% of the fixes. SEP is Spherical Error Probability. It is the radius of a sphere, centered at the true antenna position, containing 50% of the fixes.
NOTE: We are turning off our GPS engine after 5 positions in a row (1 per second) are acquired with a horizontal accuracy of 5 meters or less.