Assertion: portable radio | /r/HasAspect | separate bandspreadwaveband
Facets:
value: in the mid 1960s
type: TEMPORAL
Source sentences:
text: In the mid 1960s, some British portable radios had a separate 'Bandspread' waveband covering the highest frequencies of the medium wave (AM) band (typically 1400 - 1600kHz) to simplify tuning of popular commercial stations such as the offshore Radio Caroline and the continental Radio Luxembourg.