Radio Commercial On Geocaching in General geocaching topics Posted August 25, 2005 I'On is a unique community near Charleston, South Carolina which currently contains 6 geocaches as part of its I'On Village Community Walking Trail. Recently a one minute commercial was put on the community radio station promoting Geocaching within the I'On and around the world. If you're visiting the community while geocaching, you can tune in to 1640 AM to hear the commercial. Those further away can listen online through the station's live internet feed. You can connect through www.ionradio1640.com. In the near future a new cache will be added in I'On that will use a clue broadcast on air to allow people to find the cache. Geocaching events within I'On will also be promoted on the station.