What frequency? Where are you located? ,
Well I was monitoring from afar, I was in my kitchen, my scanner was about 15 ft away so I didn't see the frequency. I do know it was P25 though because I set up all CHP P25 frequencies to flash Green/Yellow when they transmit and the sound is unmistakable.
I'll keep my eyes open next time for the frequency, could have been any one of the P25 frequencies from Inland Division Wide or Inland Communications Center as those are they only two groups that I have programmed in.
I'm in So-Cal near the 210 & 15 fwy interchange.
Sorry I couldn't be much more help than that.