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GSM External Antenna
Some GSM Motes are provided with an external GSM booster antenna. These should be used if the
GSM modem shows fewer than three signal bars.
Figure 22—GSM external antenna
Antennas are mounted using the included U-bolts on the main mast pointing in the cell tower
direction. Run the coaxial cable down the mast and secure it with cable ties and PVC tape. Run the
coaxial cable into the Mote enclosure and connect to the GSM modem antenna socket.
Note: there are multiple coaxial sockets. Consult the modem manual for your specific device to
determine which socket to use. Typically, the correct socket has an antenna icon or is socket
number
Downloading Data via USB Memory Stick
At any time, a USB memory stick can be plugged into the Mote to download the data. Simply plug in
the USB stick and the USB LED will flash green. Once download is complete, the LED will stay solid
green and the USB stick can be removed.
Protection Against Weather and Pests
It is important to seal the enclosures from pests and the environment. See the Campbell Scientific
application note for full instructions about protecting enclosures from pests. Here are the points to
remember:
•
The enclosures are supplied with bags of silica gel. Leave these in the enclosures
•
If insects, like ants, are a potential problem, use mothballs, camphor-sticks, or other insect
repellents should be left inside the enclosures
•
Seal the enclosure using the sealing putty provided. Push the putty up into the cable conduit
as far as possible and spread it around the wires to seal them
•
Tape the bottom of the conduit with PVC tape if it is going to be a long deployment
•
Do this for all enclosures
