CSEL provides military personnel with precise geo-positioning information and secure, over-the-horizon (OTH) and line-of-sight (LOS) two-way data communications capabilities.
If I mess up, I must accept that and not try to put the blame on oth-ers.
如果我做得不好，我必须接受，并且不把过失推卸给别人。
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Owing to the decametric wavelength, the angular resolution of High Frequency Surface Wave OTH Radar (HF SWOTHR) is usually coarse especially when dimensions of antenna array are restricted.