Spectec SDG-810
If you can't afford to splurge on a bonafied GPS Device, then do check out the Spectec SDG-810, a SD card with GPS receiver and memory card slot in micro-SD format. While its actual performance is anyone's guess, the concept is pretty cool. The SDG-810 is capable of real time navigation and is equipped with a SiRF Star III with low signal levels and high sensitivity acquisition. It measures just around 62 x24 x2.1mm and is available in capacities ranging from 512MB to 2GB. No word on pricing or availability.
Chipset
SiRF Start III
Frequency
L1, 1575.42 MHz
C/A Code
1.023 MHz chip rate
Channels
20 channel all-in-view tracking
Accuracy
Position Horizontal
10 meters, 2D RMS
1~5 meters, 3D RMS with WAAS, EGNOS corrected
Velocity
0.1m/sec
Time
1 micro-second synchronized to GPS time
Datum
Datum
WGS-84 (default)
Protocol (customized protocol can be made if the offer is for more than 1000 pcs)
GPS Protocol
NMEA 0183 (default)
GPS Output format
GGA(1 sec), GSA(1 sec), GSV(5 sec), RMC, 9600bps
Dynamic Condition
Acceleration Limit
Less than 4g
Altitude Limit
18,000 meters (60,000 feet) max.
Velocity Limit
515 meters/sec (1,000 knots) max.
Jerk Limit
20m/sec**3
Temperature
Operating
-40℃~+85℃
Humidity
5~95% non-condensing
Power
Voltage
3.3V
Power Consumption
<95 mA
Physical Characteristics
Dimension
62 mm * 24 mm * 2.1 mm
Weight
Approximately 30 grams
Memory: Expansion Slot Micro SD card (TransFlash Card) memory
Size : 512MB, up to 2GB

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