The Santa Cruz sheriff's repeaters constantly change tones during a transmission. I don't use the tone feature on 155.565 or 154.95 mhz. Nobody else is using those frequencies anywhere locally; so there is no interferencre. If you plug in one of the tones, you'll lose parts of the transmission, unless you program these frequencies several times in the bank and enter all of those different tones. Turn off the delay feature too. This is more trouble than trying to track UCSC's trunked system without a trunking scanner. It isn't worth the hassle!
The same tone hoping problem occurs in Capitola too. The three other cities are using a single PL tone of 162.2 if I remember right. Santa Cruz yellow and gold channels are using 123.0 PL tone.
The tone settings are best when listening to businesses like First Alarm. Otherwise, you'll hear some Spanish speaking business sharing the frequency in the day time..
The sheriff recently began to come up on 155.475 mhz, which is Watsonville's yellow frequency. It wouldn't surprise me if the SO used the same channel designator. They do not have their own yellow channel
155.055 is a repeater input for 153.935 mhz. Enjoy listening to the dog catcher. The sheriff isn't likely gonna go there, except for tactical communications during the 4th of July weekend.