
ZyCast
SG-289 User’s Manual v1.1
2
1. Introduction
1.1 Overview
The ZyCast SG-289 Data Logger GPS Receiver is a LCD Display device providing solution with
Bluetooth, UART interface and built-in rechargeable battery for high sensitivity to tracking signal.
The SG-289 receiver incorporates a high sensitivity SiRF Star chipset for GPS signal acquisitionⅢ
and tracking. The SiRF Star chipset is with extremely high sensitivity for GPS signal acquisition andⅢ
tracking. This Bluetooth GPS receiver allows you to receive GPS data on mobile hand-held devices. By
sending the GPS data wirelessly, you may place this receiver on a position with best signal reception
without the constraint of annoying wires. The receiver is equipped with a portable, rechargeable, with
removable battery, just like a mobile phone. The receiver is very suitable for broad applications such as
vehicle navigation, mapping, surveying, security, agriculture, etc. Only a clear view of sky and a battery
power are necessary to the unit. With its 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. The device is with SD card supported for data recording in text file.
1.2 Features
The SG-289 provides a host of features that make it easy for integration and use.
1. With SiRF Star high sensitivity chipset.Ⅲ
2. High sensitivity and high performance receiver tracks up to 20 satellites.
3. High speed signal acquisition using 200,000 time/frequency search channels.
4. Built-in WAAS/EGNOS demodulator without additional hardware.
5. With the highly sensitive software to get the fast acquisition and reacquisition in the urban, canyon
and foliage environments.
6. Equipped with Li-ion rechargeable battery for long operating hours.
7. Over temperature protection for the battery.
8. Compatible with Bluetooth devices with Serial Port Profile (SPP).
9. Built-in high gain antenna.
10. Three LEDs show Bluetooth, GPS, and battery status.
11. LCD Display shows time, longitude, latitude, elevation, etc.
12. SD/MMC card supported for data storage in text file.
13. Supports standard NMEA-0183 data protocol and SiRF binary code at 19200 baudrate.
14. Built-in rechargeable battery for memory and RTC backup and for fast TTFF.
15. Flash-based program memory, new software revisions upgradeable through serial interface.
16. Compact and sleek design ideal for portable applications.