Globalsat BR-355 - BU-303 Specifications

PAGE
13
OF 14
USB_GPS_MAC_ v2.0
USB GPS (Mac)
1
1
. BU
-
303 SPECIFICATIONS
Electrical
Characteristics
(Receiver)
GPS Chipset
SiRF Star II e/LP
Frequency
L1, 1575.42 MHZ
C/A Code
1.023 MHz chip
rate
Channels
12
all
-
in
-
view tracking
Sensitivity
-
1
47
dB
m
Accuracy
Position Horizontal
10m
2
D RMSWAAS enabled
15m 2D RMSWAAS disabled
Velocity
0.1m/sec 95% (SA off),
Time
1 micro
-
second synchronized to GPS time
WAAS
Enabled for North
America product s (USGlobalSat, Inc)
Datum
Datum
WGS
-
84
Acquisition Rate
Hot start
8 sec., average (with ephemeris and almanac valid)
Warm start
38 sec., average(with almanac but not ephemeris)
Cold start
45 sec., average(neither almanac n
or ephemeris)
Reacquisition
0.1 sec. average (interruption recovery time)
Protocol
GPS Protocol
Default: NMEA 0183 (Secondary: SiRF binary)
GPS Output Data
SiRF binary >> position, velocity, altitude, status and control
NMEA 0183
MEA0183 V2.2 pro
tocol, and supports
command: GGA, GSA, GSV, RMC, VTG, GLL
v2.2 (VTG
and GLL are optional)
GPS transfer rate
Software command setting (Default : 4800,n,8,1 for NMEA )
Dynamic Condition
Acceleration Limit
Less than 4g
Altitude Limit
18,000 meters (6
0,000 feet) max.
Velocity Limit
515 meters/sec. (1,000 knots) max.
Jerk Limit
20 m/sec**3
Temperature
Operating
-
4
0°~
176
°
F (
-
40°~ 80°C)
Storage
-
40°~
176
°
F (
-
40°~ 80°C)
Humidity
Up to 95% non
-
condensing
Power
Voltage
5V ±5%
Current
90
mA typical
Physical
Characteristics
Dimension
2.32" x 1.65" x 0.82" (59mm x 47mm x 12mm)
USB Cable Length
60"
(152 cm)
Low Noise Amp
Amplifier Gain w/out cable
27 dB Typical
Filtering
-
25dB (+100 MHz)
Output VSWR
2.0 Max.
Voltage
DC 3 ~
5.0V
Current
15mA
max @ 5VDC
Due to continuous product improvements, all specifications are subject to change without notice.
FCC NOTICE
This device complies with part15 of the FCC rules. Operation is subject to the f
ollowingtwo conditions:
(1)
This device may not causeharmful interference, and (2) This device must accept anyinterference received, including interfer
ence that maycause
undesired operation.
FCC RF Exposure requirements: This deviceand its antenna(s)
must not be co
-
located or operation in conjunction with anyother
antenna or transmitter. NOTE:THE MANUFACTURER IS NOT RESPONSIBLE FOR ANY RADIO OR TV INTERFERENCE CAUSED BY
UNAUTHORIZED MODIFICATIONS TO THIS EQUIPMENT. SUCH MODIFICATIONS COULD VOID THE
USER'S AUTHORITY TO OPERATE
THE EQUIPMENT.