Fig. C.2
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Plots from the horn beam measurements from Wuensche et al. (2020) used to obtain the 10–20 dB attenuation angles as a function of frequency for a vertically polarized input signal. For each plot the intensity is attenuated by 10 dB (red dashed line) and 20 dB (sparse red dashed line) in relation to the peak intensity (black dashed line).
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