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 QLG2-SE

GPS/GNSS

Receiver 

This manual is for the QLG2-SE GPS/GNSS Receiver module

Contents

1. Introduction....................................................................................................................................................2

2. Getting to know your QLG2-SE.......................................................................................................................2

3. 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 configuration.............................................................................................................................9

4. Circuit diagram (schematic) and description..................................................................................................9

5. Testing..........................................................................................................................................................12

6. Resources.....................................................................................................................................................13

7. Document Revision history...........................................................................................................................13

QLG2-SE manual 1.00

1

Summary of Contents for QLG2-SE

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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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