Tag Archives: hmeasure

Overdue measurement microformat: useful for radio station frequencies

Three or four years ago, I and a few others did a lot of work preparing a draft for a , hMeasure, for marking up length, mass (weight), temperature and so on. Sadly, it has yet to be taken up by the unelected and unaccountable clique who oversee the microformats “process” — but that’s a story for another time.

Recently Corey Mwamba asked how he could semantically mark up the frequencies of radio stations, for example:

Heart FM (Sussex) 102.4 MHz (Eastbourne)

My friend Toby Inkster rightly proposed the use of the “note” property, but I think that authors could also usefully use a non-microformat class name of “frequency”, for added semantic richness (and to aid screen-scrapers), and better still, the proposed hMeasure:

         <div class="vcard">
                 <b class="fn org">Heart FM
                    (<span class="adr">
                        <span class="locality">Sussex</span>
                 <i class="note frequency">
                         <span class="hmeasure">
                          <span class="num">102.4</span>
                          <span class="unit">MHz</span>
                         (<abbr title="50.9761;0.2293" class="geo">

If enough people use this pattern (and write up their experiences of doing so), then a de facto microformat will emerge.

Update: There’s a copy of that code at pastebin.com/CXCYT5nF which has syntax highlighting, and which you can replicate and edit if you wish to make a counter suggestion.

Update 2: I have now implemented this in the Wikipedia Frequency template, as seen, for example, on the article about BRMB.