Passed by the Seal Beach Naval Weapons Station in Seal Beach yesterday while on the freeway and noticed a brand new Modulator II siren on the base. This is the first and only Modulator in the Los Angeles Area. There is a Mod II also down on Point Loma in San Diego.
The Mod is very difficult to see from the freeway and this a screenshot of a photo of it zoomed in. I apologize for the bad picture quality but the photo was taken while on the freeway.