IBB operates a network [map] of almost 70 remote monitoring systems [RMSs] in order to determine and demonstrate the audibility of its own and others' broadcasts.

Each RMS consists of an antenna, a radio and a computer attached to the internet. A simple text file script is used by the computer to collect and encode sound samples and bandscan information from the radio.

Data collected by each RMS is then sent to one or more servers and made available through this webpage.

If you would like to hear samples of your broadcasts from the RMS network and can host a system for us, please email bw@his.com. RMS requests should be sent to us in the format on this page.