A few days ago we started a contest to identify the frequencies used in the multibeam and the chirp. After what can only be called an unprecedented number of responses I am very happy to announce that Matt Crowne is our winner. Matt used a program called Audacity (a very cool open source program for playing around with audio) to generate a power spectrum from the MP3 I uploaded and select the correct frequencies. Matt picked 3.7 kHz for the chirp and 11.6 kHz for the multibeam. The “official” values are 3.5 kHz and 12 kHz respectively.
Do you want to win a tee shirt too? We’ll be starting a tee shirt design contest soon, so check back often!