high sensitivity gps module:-160dBm
low power consumption
stable performance both static state and movement

The Skylab SKG25A1 is a complete GPS module with super sensitivity, ultra low power and small form factor. The GPS signal is applied to the antenna input of module, and a complete serial data message with position, velocity and time information is presented at the serial interface with NMEA protocol or custom protocol.

Its -160dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The small form factor and low power consumption make the module easy to integrate into portable device like PNDs, mobile phones, cameras and vehicle navigation systems

Performance Specification

Parameter

Specification

L1 frequency band, C/A code, 20-channels

Sensitivity

Tracking

Acquisition

-160dBm

-144dBm

Accuracy

Position

Velocity

Timing (PPS)

            3m CEP without SA

0.1m/s without SA

60ns RMS

Acquisition Time

Cold Start

Warm Start

Hot Start

Re-Acquisition

36s

30s

2s

<1s

Power Consumption

Tracking

Acquisition

Sleep/Standby

35mA @3V Vcc

35mA

TBD

Navigation Data Update Rate

1Hz

Operational Limits

Altitude

Velocity

Acceleration

Max 18,000m

Max 515m/s

Less than 4g