Wiktionary
decametric
a. Of, relating to, or measured using a decameter / decametre; especially of electromagnetic radiation having a wavelength between one and ten decameters.
Usage examples of "decametric".
He could see the deep bands of equatorial emissions and had to tone down the decametric and kilometric radio roar coming from the flux tube itself.
Looking ahead on the decametric radio bandwidths, he could see Io’s Jupiter-thick plasma torus and, at right angles to the torus, Io’s flux tube running like wide horns to Jupiter’s north and south poles.