| US Globalsat bu-353 vs bu-353-s4 comparison Chart |
| General Specifications |
New BU-353-S4 |
Original BU-353 |
| GPS Chipset |
SiRF Star IV |
SiRF Star III e/LP |
| Frequency |
-- |
L1, 1575.42 MHZ |
| C/A Code |
-- |
1.023 MHz chip rate |
| Channels |
48 all-in-view tracking |
20 all-in-view tracking |
| Sensitivity |
-163 dBm |
-159 dBm |
| Accuracy |
-- |
5m 2D RMS WARS enabled
10m 2D RMS WARS disabled |
| Aquisition Rate |
| Hot start |
1 sec., average |
8 sec., average |
| Warm start |
35 sec., average |
38 sec., average |
| Cold start |
35 sec., average |
45 sec., average |
| Reacquisition |
0.1 sec. average |
0.1 sec. average |
| Update rate |
1Hz |
1Hz |
| Protocol |
| GPS Protocol |
Default: NMEA 0183
Secondary: SiRF binary |
Default: NMEA 0183
Secondary: SiRF binary |
| GPS Output Data |
SiRF binary >> position, velocity, altitude, status and control NMEA 0183 V3.0 protocol (GGA, GSA, GSV, RMC, VTG, GLL, ZDA) |
SiRF binary >> position, velocity, altitude, status and control NMEA 0183 V3.0 protocol (GGA, GSA, GSV, RMC, VTG, GLL, ZDA) |
| GPS transfer rate |
Software command setting
Default : 4800,n,8,1 for NMEA |
Software command setting Default : 4800,n,8,1 for NMEA |
| Dynamic Condition |
| Acceleration Limit |
Less than 4g |
Less than 4g |
| Altitude Limit |
Max 60.000 Feet (18,000 meters) |
Max 60,000 Feet (18,000 meters) |
| Velocity Limit |
Max 515 Meters / sec
(1000 Knots / 151 MPH) |
Max 515 Meters/ sec
(1000 Knots / 151 MPH) |
| Jerk Limit |
20 m/sec**3 |
20 m/sec**3 |
| Environmental Specifications |
| Operating |
-40°- 185°F (-4W-- 85°C) |
-40°— 176°F (-40°— 80°C) |
| Storage |
-40°- 185°F (-40°- 85°C) |
-40°— 176°F (-4W— 80°C) |
| Humidity |
Up to 95% non-condensing |
Up to 95% non-condensing |
| Electrical Characteristics |
| Voltage |
4.5V - 5.5V |
4.5V - 6.5V |
| Current |
55mA Maximum |
50mA typical |
| Physical Charateristics |
| Dimension |
2.08" diameter x 0.75"
(53mm dia. x 19.2mm) |
2.08" diameter x 0.75"
(53mm dia. x 19.2mm) |
| USB Cable Length |
59" (1,500 mm) |
59" (1,500 mm) |
| Weight |
2.2Ounces (62.37g) |
2.2 Ounces (62.37g) |
