Unscrew the antenna mount and place it through the hole in the enclosure with the threads up, as shown below. Use the lock-washer on top and the tooth-washer on the bottom:
The antenna mount should fit snuggly, you may need to screw it into place for it to fit.
Install the 18650 LiIon battery into the holder, paying attention to the polarity. If there is a piece of tape on the battery, remove it:
Attach the µFL connector to the Meadow external antenna connector as illustrated below:
Using (4) M2x6 screws, install the assembled PCB:
Using the remaining (4) M2x6 screws, install the cover:
