The MS22 is a military qualified, two-input, two-output, GPS splitter which includes an antenna health sensor and an embedded antenna switch. Dual input ports allow the splitter to be connected to two GPS receive antennas. The sensor monitors the health of the primary antenna connected to the splitter. Based on the information provided by the sensor, the splitter will switch to the secondary antenna in the event of a failure with the primary antenna.
If the failure in the primary is resolved, the splitter will automatically switch back to the primary. The embedded switch has been designed so it can be controlled externally. This external control can also override the internal automatic switch.