Well it's that time of the year again. I'll be going to St. Paul, MN and should be there to catch the August siren test. Similarly to last year, I'll be armed with an iRiver H340 MP3 player/recorder plus a few external mics and will be attempting a second recording - probably on a specific dual-tone Allertor this year rather than the mix of sirens that I recorded last year.
An idea I had was to do a recording which not only gets the sirens, but also captures the audio on the activation frequency. Brent did such a recording a few years back, see the bottom of this page. Therefore, does anyone know the activation frequency for the Minneapolis/St. Paul siren system? This would the the frequency you'd set your scanner to, not the frequency of the activation tones. Judging by the look of the antennas attatched to the siren controllers, I'd guess it's in the 150MHz business band, but that's a huge band! "Weapons" of mine include a Yaese VX-7, a VX-2, and an Alinco DJ-196T, so I'm pretty frequency agile.
So do we have any Twin Cities scanner buffs who know that frequency?