I can't help much with the Worcester system question. I can tell you that the new warble tone came with the EDACS upgrade. Perviously, Worcester has a Motorola radio console system, so the older warble is what was heard (similar to Baltimore Co. & City and AA Co). The new system is similar to OC's warble. As for the paging tones, both Worcester County and Ocean City transmit their paging tones on both the conventional dispatch frequency (46.380mHz for Worcester and 158.895mHz for Ocean City) and the 800mHz talkgroup so that the field units using 800mHz radios don't step on the tones, similar to what often happens in Baltimore & AA Counties. In Ocean City, if Paramedic unit is being dispatched, no paging tone will be heard. A Zetron station controlling system alerts the appropriate fire station via hardwire, and the radio system sends a call-alert to the Paramedic unit's portable radios. The only thing heard on the air is a short, solid beep tone and the voice dispatch. If it's a fire call, you will hear the paging tone, followed by the appropriate alert tone (a warble for a fire alarm assignment, and a fast siren for a silent alarm) and then the voice dispatch. The Zetron station controller system is also used to set of the alarms in the stations and activate the traffic control.
