親們三代的GPS已經停產，現在全部是S4代的產品，請放心購買！

最新BU-353S4 鼠標型衛星接收器(SiRF Star IV)上市。

（主機+吸盤+光盤），配件與bu 353一樣。

Globalsat BU-353結合瞭設計和技術，獲得2006年GPS接收器iF產品設計獎，將SiRF Star III/SiRF Star IV芯片整合到GPS mouse，是環天造就的又一款性能優越的GPS接收器，其性能與我司的BU-353（當今市場上最靈敏和最準確的GPS接收器）相同，為目前市場最優。

用途：

(1)專業網路測試GPS接受器，電信/移動/聯通/公交公司/中興/華為等各類路測公司必備專業設備。

(2)用於測量。大地測量、資源勘探、地籍測量等.

(3)交通領域，船舶、汽車、飛機定位導航，車輛和人員定位跟蹤，物流，智能交通等.

(4)戶外運動、旅遊探險。

(5)電力，郵電，通訊網路的精確授時等.

Product Description

 The BU-353-S4 is a USB GPS receiver that features a highly sensitive, low power consumption chipset in a

ultra compact form factor.The BU-353-S4 is powered by a SiRF Star IV GPS chipset, and will provide you

with superior performance in urban canyons, and in dense foliage. With the SiRF CGEE (Client Generated

Extended Ephemeris) technology, has the capability of predicting satellite positions for up to 3 days in

advance,and will deliver a CGEE-start time of less than 15 seconds under most conditions without any network assistance. The bu-353-S4's MicroPower mode allows the receiver to stay in a hot start-like condition almost continuously while consuming very little power.
 

Features:

*SiRF Star IV high performance GPS Chipset 
*Highly sensitive (Tracking Sensitivity: -163 dBm) 
*Extremely fast TTFF (Time To First Fix) at low signal level 
*Support NMEA 0183 data protocol 
*Built-in SuperCap to reserve system data for rapid satellite acquisition 
*Built-in patch antenna and magnetic pad 
*Super-cohesive magnetic for mounting on the car 
*Waterproof and non-slip on the bottom 
*LED indocator for GPS 
 

Specifications:
Chipset: SiRF Star IV

Frequency: L1 1575.42MHz
C / A code: 1.023 MHz chip rate 
Number of Channels: 48 channels tracking 
Sensitivity: -163 dBm

Accuracy: 
Location: 10 meters, 2D RMS 
5 meters, 2D RMS, WAAS enable 
Rate: 0.1 m / s 
Time: 1 microsecond synchronized satellite 
Coordinate information: 
Default: WGS-84 
Acquisition Time:

 Readmission: Average 0.1 seconds 
Hot Start: Average 1 seconds 
Warm start: 38 sec average 
Cold and warm start: 42 sec average 
Related restrictions: 
Height: 18,000 m (60,000 ft) maximum 
Rate: 515 m / sec (10,000 knots) maximum 
Gravity: Less than 4G

Power: 
Main power input: 4.5V ~ 6.5V DC input 
Power consumption: 80mA 
Agreement: 
Operational level: TTL level 
Output Voltage: 0V ~ 2.85V 
Transfer rate: 4,800 bps 
Output format: NMEA 0183 GGA, GSA, GSV, RMC, VTG, GLL 
Physical Characteristics: 
Size: 53mm diameter, 19.2mm height 
Cable length: 1.5 m 
Operating temperature: -40 ° C to +85 ° C

Package Included:

1.USB GPS Receiver

2.Suction Cup

3.CD Driver with user manual