Michiephone Base Station
A Base Station is a Michiephone handset but with a small half Watt audio amplifier,
a small speaker a hand-held microphone, and is housed in a larger box.
Power is 12VDC from two lantern batteries or a car battery.
It is usually setup somewhere near the cave entrance on a small table.
It's designed so the Base Station
Operator can communicate
with all the hand held Michiephones in the cave, take notes,
and control communications while sitting down in a more comfortable position.
One Base Station near the entrance of the cave and, for protracted rescues,
maybe one further into the cave at an underground base complements the
handheld Michiephones. Together they make a complete cave rescue communications system.
You can download or view a PDF version of the instruction manual for the
Base Station from the Instruction Manuals page.
For further information see the contact information in the
Introduction.