While far from being and expert on receivers, maybe the coated means a conformal coating, which is just an epoxy painted over the electronics to keep them from shaking loose from vibrations. Maybe it is chinglish for coding? or something to do with the satellite receivers? Maybe someone really knows. Lots of folks use the cheap Orange and Lemon receivers for glow with satisfactory results. I heard of sketchy Orange problems, but then have heard that for the Spectrum receivers too. I believe the gyro could be an issue too, so that may be good advise. I have nothing like that so can not comment. I really only used the Spectrum (with Orange receivers) for electrics, but like you, want to use them for glow this year.