Ct-434 GPS 模組
TheCt-G434isahighsensitivity,lowpowerandverycompactsmartantennamodule
![](/_file/C12/127556/AB/13196892733061.jpg)
The Ct-G434 is a high sensitivity, low power and very compact smart antenna module, with built in GPS receiver. This 48-channel global positioning system (GPS) receiver is designed for a wide range of OEM applications then based on the fast and deep GPS signal search capabilities of SiRFstarIV GSD4e ROM chipset, SiRF’s newest chipset technology. The Ct-G434 provides flexible I/O interfaces (UART , I
n PDA, MID, and other portable devices
n Car and Marine Navigation
n Fleet Management / Asset Tracking
n AVL and Location-Based Services
n Hand-Held Device for Personal Positioning and Navigation
Features
Performance
u High Performance Solution:
- High sensitivity navigation engine (PVT) tracks as low as -160dBm
- 48 track verification channels
- SBAS (WAAS or EGNOS)
u Active Jammer Remover:
- Removes in-band jammers up to 80 dB-Hz
- Tracks up to 8 CW jammers
u Multimode A-GPS (Autonomous, MS-Based, and MS-Assisted) – With operator support
u *2 Embedded CGEE / SGEE (With back-end server support) speed up TTFF a lot and makes cold start time to be around 20+ seconds
u SiRFGeoRecovTM Reverse EE makes positioning process being done under power saving mode.
u RF Metal Shield for best performance in noisy environments
( *2, Above features should be combined with external EEPROM, please refer to application note. )
Interface
u Multiple host interfaces (UART, I
u Secondary I
u Protocol: NMEA-0183 (default)
Advantages
u Built-in LNA.
u Built-in internal ROM and based on Firmware 4.x.x
u *3 Embed CGEE (Client Generated Extended Ephemeris) that can capture ephemeris data from satellites locally and predicts ephemeris out to 3 days. So if the module was off within 3 days, it could complete positioning process with limited time just like hot start.
u It can remove in-band jammer up to 80db-Hz and track up to 8CW jammers, so the module can prevent GPS signal interference when design-in the electrical device with noisy electrical signal interferences such as Laptop, mobile phone, DSC, etc.
u Tracking sensitivity as low as -163dBm, even without network assistance.
u Support SiRF Aware technology
u Support adaptive “Micro Power Controller” power management mode
u *4 Support MEMS sensor through I
u MEMS interrupt can improve Micro Power Mode performance.
u Only 8mW Trickle Power, so user can leave power on all day instead of power off
u Suitable for battery drive devices that need lower power consumption application
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