# radio ```js // usage chance.radio() ``` <p class="pullquote" data-pullquote='Broadcast call signs start with a W if east of the Mississippi River and K if west.' markdown="1"></p> Generate a random radio call sign. ```js chance.radio(); => 'KCXW' ``` Optionally specify a side of the Mississippi River to limit stations to that side. See [K and W](http://en.wikipedia.org/wiki/Call_signs_in_North_America#K_and_W) for more details ```js chance.radio({side: 'east'}); => 'WKOQ' chance.radio({side: 'east'}); => 'WNOW' ```