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APPENDIX B ERROR MESSAGES
FREQ, OUT OF BAND
Measured frequency was either lower than 406.0 Mhz. or higher than 406.1 Mhz.
INVALID FREQUENCY
Measured frequency exceeded the selected frequency tolerance limits as specified by
the COSPAS SARSAT channel assignments.
UNSTABLE FREQUENCY
Measured frequency exceeded the frequency stability limits as specified by COSPAS
SARSAT
ERRATIC TRANSMISSION
Measured transmission was not constant in level or frequency
LOW RF POWER
Measured transmitter power was less than 3.2 watts
EXCESS RF POWER
Measured transmitter power was more than 7.9 watts
LOW FIELD STRENGTH
Received signal is significantly below what it should be for a normal distance from the
beacon or beacon antenna, If it is necessary to place the tester much closer than normal, either
the beacon is defective or the antenna system is not functioning properly
MODULATION LOW
Modulation was less than 1.0 radians peak
MODULATION HIGH
Modulation was greater than 1.2 radians
DATA CLOCK SLOW
Message bit rate was less than 396 bps
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