Assertion: radio's channel | /r/HasProperty | 4 numbers
Facets:
Source sentences:
text: The next step with many existing 2.4GHz radios is that the list of numbers which have finally been calculated for each and every channel (ie: 4 numbers for a 4-channel radio and 9 numbers for a 9-channel radio, etc) are converted into what is known as a "frame" of PPM data.