Specification :

Detail: GPS mouse G-mouse SKM55/ gps module skm55
Ultra high sensitivity: -165dBm
22 tracking/ 66 acquisition-channel receiver
The SkyNav SKM55 Series with embedded GPS antenna enables high performance navigation in the most stringent applications and solid fix even in harsh GPS visibility environments.
It is based on the high performance features of the MediaTek 3327/ 3329 single-chip architecture, Its 165dBm tracking sensitivity extends positioning coverage into place like urban canyons and dense foliage environment where the GPS was not possible before. The 6-pin and USB connector design is the easiest and convenient solution to be embedded in a portable device and receiver like PND, GPS mouse, car holder, personal locator, speed camera detector and vehicle locator.

1.Features
Ultra high sensitivity: -165dBm
22 tracking/ 66 acquisition-channel receiver
WAAS/ EGNOS/ MSAS/ GAGAN support
NMEA protocols ( default speed: 9600bps)
Internal back-up battery and 1PPS output
One serial port and USB port ( option)
Embedded patch antenna 18.2 x 18.2 x 4.0 mm
Operating temperature range: -40 to 85
RoHS compliant ( Lead-free)
54mm Diameter 15.6mm Height

2.Performance Specification
Receiver Type
-L1 frequency band, C/ A code
-22 Tracking/ 66 Acquisition-Channel

Sensitivity
-Tracking -165dBm
-Acquisition -148dBm

Accuracy
-Position 3m 3D RMS without SA
-Velocity 0.1m/ s without SA
-Timing ( PPS) 60ns RMS

Acquisition Time
-Cold Start 36s
-Warm Start 33s
-Hot Start 1s
-Re-Acquisition