Compatibility
Straight out of the box, if you simply install the coaxial connector and plug in the antenna,
the QLG2 is backwardly compatible by default with the former QLG1 kit. It is therefore
directly compatible with all other QRP Labs kits:
•
QCX-series CW transceivers (QCX, QCX+ and QCX-mini)
•
Ultimate3S (and preceding kits in the Ultimate- series)
•
Clock kit
•
VFO/Signal generator kit
•
ProgRock kit
3. Assembly
3.1
Assembly for basic operation
Assembly of this kit is EXTREMELY straightforward; at the minimum, you need only solder
in the SMA connector. This can be installed horizontally or vertically (below left and right,
respectively), to suit your particular application.
Vertical installation:
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 ineffective, it will also draw
high current from the GNSS module through the 10-ohm
resistor R2. You will soon note the temperature rise of the
GNSS module as well as the 3.3V voltage regulator chip (you
don’t need to ask me how I know...).
Therefore it is essential to create a little gap between the
body of the SMA connector and the board.
The best way to do this is via small piece of paper. It’s a simple,
cheap and effective solution.
Cut a small piece of paper as shown (above right), place it on
the board and push the center pin of the SMA connector
through the paper.
Solder the SMA connector in place as usual. Don’t overdo the
heat and burn the paper.
QLG2 manual for firmware 1.00a
5
