Spectra Precision ProMark 800 Reference Manual - Manual (Page 132)

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Miscellaneous
located at the bottom of the case, on which you can insert
your SIM card.
• Insert the SIM card as shown below.
• Put the radio module or compartment door back in place.
Tighten the two screws.
Changing the Radio Module or Using One for the First Time
• Turn the ProMark 800 upside down.
• Using a flat screw driver, loosen the two quarter-turn
screws of the radio module (or compartment door if your
ProMark 800 was purchased without a radio module).
• Gently pull the module (or compartment door) out of the
ProMark 800. The picture below shows a ProMark 800
from which a radio module was removed.
• Insert the new radio module. This should be done gently,
taking care not to damage the 16-pin male connector,
which connects to the bottom of the receiver. When the
module is fully inserted, tighten the screws.