PingInfo

This is a ROS message definition.

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# Center frequency of sonar in Hz
# Set to 0 if unavailable
float32 frequency

# Speed of sound (m/s) used to calculate ranges;
# Set to 0 if unavailable
float32 sound_speed

# Sonar reported -3db beamwidths
# May be empty if not reported
# reported in radians
float32[] tx_beamwidths
float32[] rx_beamwidths