Specifications GPS Board GSU-14F

Receiving frequency

1575.42 MHz ± 1 MHz

Receiver channel

Digital 11-channel parallel/sequential

Sensitivity

Better than -130 dBm (elevation angle: 5° or more

Accuracy (PDOP =<3)

a) Position

100 m 2D RMS (with SA),
Spherical probability: 95%
15m RMS (without SA)

b) Speed

1 m/s or less (with SA)

c) Bearing

Approx. 1 degree (without SA)

Dynamics

a) Velocity

Less than 300 km/h (500 km/h; optional)

b) Acceleration

Less than 1 G

Position update time

Every 1 second

Time to position fix (warm Start)

Within 60 seconds

Positioning mode

2-D positioning (3 satellites: HDOP =< 10)
3-D positioning (4 satellites: HDOP =< 7 )

Backup memory

Supported by lithium battery

Initial position data

Not necessary

Almanac and time data

Not necessary

Differential GPS

RTCM SC-104 format acceptable

Power supply	a) Voltage	+ 5VDC
	b) Consumption	Less than 140 mA (without antenna)
Antenna; optional
a) Micro-Strip	patched antenna	Right-hand circular polarized antenna
b) Directivity	Zenith	-2 dBi or more
	Elevation 0°	-10 dBi or more
c) Pre-amplifier Gain		26 dB ± 3 dB (typical 25 mA)
	Noise figure	2.5 dB MAX
Temperature range	a) Operation	-30° to + 70° C (-40° to 158° F)
	b) Storage	-50° to + 90° C (-58° to 194° F)
Data Communication	Asynchronous bidirectional data communication with TTL
Input data format	a) Baud rate	4800 Baud with stop bit
	b) Programmable parameters
	1) Antenna height	0 to 999m (Default: 0)
	2) Mask values Elevation PDOP HDOP S/N	0° to 45° (Default: 10) 0 to 99 (Default: 7) 0 to 99 (Default: 10) 0 to 25 (Default: 3)
	3) Datum	00 to 83 (Default: 00 WGS-84)
	4) Averaging	1 to 3 (Default: 3)
	c) Differential data	RTCM SC-104 format: 4800 baud only
Output data format		NMEA-0183 : inverted plarity
	a) Baud rate	4800 baud with stop bit without parity bit
	b) Data contents
	Latitude and longitude	In increments of 0.001 minute
	Time	UTC (hour, minute, and second)
	Altitude	In increments of 1 meter
	Speed	In increments of 0.1 knot, 0.1 km/h
	Course	In increments of 1 degree
	Others	HDOP, positioning moder
	c) Output format
	GGA+GLL+VTG+RMC+ZDA +PKODA+PKODG,1+PKODG,7 +GSA+GSV	Interval of every 1 second Interval of every 2 second Interval of every 2 to 6 seconds
	d) Output data level	TTL
	e) Output current	TTL: maximum 5 mA