GPS Module Holux GR-89

THE HARDWARE

Amazing super sensitif GPS receiver using Holux GR-89.

THE SPECIFICATION

Holux Official Site

General
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Chipset SiRF Star III
Frequency: 1575.42MHZChannels: 20
TIMEMARK-1PPS Pulse
Level CMOS 3V
Measurements Aligned to GPS second, 1 microsecond.
Datum WGS-84 .
Position: 10 meters, 2D RMS ., 7 meters 2D RMS, WAAS corrected . 1-5 meters, DGPS corrected .
Altitude : < 35m Vertical in term of 95% .
Velocity : 0.1 meters/second .
NMEA 0183 Version 2.2 ASCII output (GGA, GSA, GSV, RMC (VTG , GLL and ZDA for optional)).

The document provide by the holux site was limited only on product spec, you may google it to find application note or somethings to work on schematics. You may download a copy for my search result of the specification and user guide from link below:
    Holux GR-89 Specification
    Holux GR-89 Users Guide
for Test software you can use GPSviewer and GPS mini both from Holux
    GPSmini
    GPSViewer

The Antenna
 Type of the active gps antenna is KHD-P1. Notice that Holux GR-89 will only work with active antenna.

The Testing Project

Pictures of my proto board using cheap matrix PCB, schematics based on Holux GR-89 Users Guide with minor changes.

THE RESULT

3 Meter from window during rainy day and still got a good signal reception, It's Great!