Table 2. Received level (RL) measurements over full bandwidth of OAWRS FM pulses, ambient noise (NL) measurements over the same bandwidths, signal-to-noise ratios (SNR) and signal excess (SE) (mean±SD).

	FM 1	FM 2	FM 3
Center Frequency (Hz)	415	734	949
RL Signal (dB re 1 µPa)	110.3±3.3	88.0±3.2	89.8±3.3
NL Ambient (dB re 1 µPa)	88.0±3.3	82.9±2.6	81.6±2.5
SNR = RL-NL (dB)	22.3±4.8	5.1±4.0	8.2±3.9
SE = SNR-10 dB	12.3±4.8	−4.9±4.0	−1.8±3.9

N = 677.