1. Introduction
The QLG2 GNSS (Global Navigation Satellite System) receiver module is an upgrade over
the former QLG1 with higher performance and highly flexible features:
•
Multi GNSS satellite constellation receiver supports GPS (US), Galileo (Europe),
GLONASS (Russia) and Beidou (Chinese) - (default GPS + Beidou) - giving a faster
more accurate position fix – Module is E108-GN01 (GK9501 GNSS chip set)
•
Serial to USB converter, using onboard USB B connector, for convenient interface to
PC software if required - no drivers required. Jumpers select either the GPS serial
data, or your own externally connected serial data, for example you could use this as
a USB to Serial data converter for CAT control of QCX, QCX+ and QCX-mini
transceivers.
•
Can optionally be connected to a standard 1602 LCD, in the same style as the
Ultimate3S, VFO and Clock kits, to GPS date, time and satellite information using
the onboard microcontroller.
•
Supplied with included magnetic-mount active antenna, approx 2m coax and SMA
connectors
•
Supply voltage range 3.3 to 6V.
•
Board 80 x 37mm (Same as, and compatible with, Ultimate3S, VFO and Clock kits).
•
Onboard LEDs for status indication: Red (Power), Yellow (Serial data) and Green
(PPS).
•
2.8 to 5V logic level conversion to provide 5V serial data for full compatibility with all
QRP Labs kits.
•
Supports 2.8/3.3V logic OR 5V logic (jumper wire selected)
•
SMD assembly already undertaken by factory facility - only SMA connector, and
optional USB B connector to solder.
•
Space provided for optional ultra-capacitor for faster hot-start
All QLG2 GPS modules are comprehensively tested before shipment including:
•
Active antenna with 2m coax and SMA connector functions correctly
•
Satellite reception and Time To First Fix is under 1 minute
•
Serial data and 1pps outputs are correctly present
•
USB to Serial data converter operates properly (view serial data in PC terminal)
•
Microcontroller firmware update procedure test
PLEASE READ THE BASIC ASSEMBLY AND USE
INSTRUCTIONS IN THIS MANUAL VERY CAREFULLY BEFORE
APPLYING POWER TO THE BOARD!
2. Getting to know your QLG2
There are only FOUR parts in the QLG2 kit:
1. 80 x 37mm PCB with assembled SMD
2. Active antenna including 2m coaxial cable and SMA connector
3. SMA connector for installation on the PCB
4. USB-B type connector for optional installation on the PCB-mount
The parts list of the PCB is provided later in this manual in the circuit description section.
QLG2 manual for firmware 1.00a
2
