For the sake of backward compatibility, the upper infobox opposite only appears if |freq= is passed. If freq is not passed, only the lower radio-bands sidebar will be shown.
Note: As entries for frequency and wavelength ranges include spaces (between numbers, ndashes, units), these fields do not word/linewrap. If, therefore, a newline/carriage-return is required in one of these fields, use e.g. <br/> or format the field with {{br list}} or {{ublist}}.
If the name2 parameter is passed, the second set of parameters is also used and the template's overall heading is now specified by title rather than name. For example:
{{MWband
| title = Frequency band
| name = NATO frequency band
| freq = 40 – 60 [[Hertz|GHz]]
| bands = {{ublist|class=nowrap |[[V band]] (IEEE) |[[Extremely high frequency|EHF]] (ITU)}}
| name2 = IEEE frequency band
| freq2 = 1 – 2 GHz
| bands2 = {{ublist|class=nowrap |[[D band (NATO)|D band]] (NATO) |[[Super high frequency|SHF]] (ITU)}}
}}