The Progin SGM-208 series GPS receiver incorporates low noise, high sensitivity, low power consumption SiRF Star ? chipset solution in a compact, waterproof enclosure. The receiver is very suitable for broad applications such as car navigation, mapping, surveying, etc. Only clear view of sky and certain power supply are necessary to the unit. It communicates with other host device via one full duplex serial communication RS-232 port or one universal USB port. With its ultra low power consumption, the receiver tracks up to 20 satellites at a time while offering fast time-to-first-fix, re-acquires satellite signals less than 1 second (average) and updates position data every second.
 

Features

The SGM-208 series provides a host of features that make it easy for integration and use.
 

1.	With SiRF Star ? high sensitivity chipset.
2.	High performance receiver tracks up to 20 satellites.
3.	Compact design ideal for applications with minimal space.
4.	A rechargeable battery sustains internal clock and memory.
5.	User initialization is not required.
6.	One full duplex serial RS-232 port or USB port meets all applications.
7.	Waterproof design for all weather.
8.	Built-in low noise, high gain active antenna.
9.	LED display provides users visible positioning status.
10.	Support Standard NMEA-0183 and SiRF Binary protocol.

Electrical Characteristics
 

GENERAL
Frequency	L1, 1575.42 MHz
C/A code	1.023 MHz chip rate
Channels	20 channels all in view tracking
Antenna	Internal
SENSITIVITY
Tracking	-152 dBm typical
ACCURACY
Position	< 10 meters, 2D RMS
	< 7 meters 2D RMS, WAAS corrected
	1-5 meters, DGPS corrected
Time	1 microsecond synchronized to GPS time
DATUM
Default	WGS-84
Acquisition Rate	(Open Sky)
Hot start	1 sec, average
Warm start	38 sec, average
Cold start	42 sec, average
DYNAMIC CONDITIONS
Altitude	< 18,000 meters (60,000 feet)
Velocity	< 515 meters/sec (1000 knots)
Acceleration	< 4G
Jerk	20 meters/sec max
POWER
Main power input	5.0 ±5% VDC input
Supply Current	80 mA @5V
SERIAL PORT
Electrical interface	One full duplex serial communication via RS232/ TTL interface
Protocol message	NMEA-0183, SiRF Binary
Default NMEA	GGA, GSA, GSV, RMC, (VTG, GLL, and ZDA optional)
	4800 baud rate (other rate optional)
	8 bits data, 1 stop bit, no parity
WEIGHT
< 85 g
ENVIRONMENTAL CHARACTERISTICS
Operating temperature range	-40°C to +80°C
Storage temperature range	-45°C to +95°C