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1. Introduction

The QLG2-SE GNSS (Global Navigation Satellite System) receiver module is an upgrade 
over the former QLG1 with higher performance and highly flexible features:

QLG2-SE is a reduced functionality version of the QLG2. Compared to QLG2, it lacks the 
USB to Serial converter interface and the capability to use an optional LCD module. 

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)

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 to solder.

Space provided for optional ultra-capacitor for faster hot-start

All QLG2-SE 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

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-SE

There are only THREE parts in the QLG2-SE 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

The parts list of the PCB is provided later in this manual in the circuit description section. 

QLG2-SE manual 1.00

2

Содержание QLG2-SE

Страница 1: ...Assembly 5 3 1 Assembly for basic operation 5 3 2 Use with QCX U3S Clock VFO ProgRock etc kits 6 3 3 Status LEDs 6 3 4 Fitting an ultracap a k a supercap 7 3 5 6 pin interface header 8 3 6 Interface...

Страница 2: ...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...

Страница 3: ...Kit contents Know your QLG2 QLG2 SE manual 1 00 3...

Страница 4: ...the serial port pads are connected allowing either 2 8 3 3V logic or 5V logic levels Break strip this line of drilled holes allows you to easily snap off the right hand part of the board if you would...

Страница 5: ...allation IMPORTANT The body of the SMA connector WILL DEFINITELY short to the center pad of the component footprint on the board This will not only short out the antenna rendering it completely ineffe...

Страница 6: ...essor the QLG1 the QLG2 SE module has the same three LED status LEDs In the case of QLG2 SE these are 0603 size SMD LEDs installed on the PCB near the GNSS receiver module LED 1 red is the Power LED a...

Страница 7: ...ultracap a k a supercap There is a place on the QLG2 SE board to fit an ultracap a k a supercap This is a lot more reliable means of providing backup power than the little rechargeable battery on the...

Страница 8: ...ata output from the GNSS module By default this is at 9600 baud and is 5V logic level which is suitable for use with QRP Labs products such as QCX Ultimate3S VFO and Clock kits Note that this signal i...

Страница 9: ...onnected from the center of the group of three pads to the top pad LOWER means the jumper wire is connected from the center of the group of three pads to the lower pad 1 PPS voltage level UPPER 5V log...

Страница 10: ...QLG2 SE manual 1 00 10...

Страница 11: ...323 IC1 74ACT08 IC SOIC 14 IC2 MIC5219 3 3 IC SOT23 5 L1 L2 1uH Inductor 2012 LED1 Red LED 0603 LED2 Yellow LED 0603 LED3 Green LED 0603 M1 E108 GN01 GNSS Module 16 x 12 mm Q1 BSS123 Transistor SOT23...

Страница 12: ...vels required by other QRP Labs kits is done using a 74ACT08 quad AND gate chip it is not used as an AND gate all gates have their two inputs tied together it is simply used as a logic level converter...

Страница 13: ...b page also contains links to the E108 GN01 datasheet and the GK9501 command reference For any questions regarding the assembly and operation of this kit please join the QRP Labs group see https group...

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