Operating Manual Part 15

4-6 5300 ES Series Mobile Radio Operating Manual October 2008
Radio Wide Features
The Alert Tone volume can be adjusted relative to the volume control setting. This is done
by programming and also by the user if the TN VOL option switch is programmed.
Relative levels of –170 to +170 can be set with “0” the default setting. A minus value
decreases the tone volume and a plus value increases it. The user adjusted level
permanently overrides the programmed level if applicable.
4.7 Power Turn-Off Delay
The radio can be installed so that the vehicle ignition switch as well as the front panel
power switch of the radio control power. This is done by connecting the accessory cable
ignition switch input to the vehicle ignition switch. Refer to the 5300 ES Installation
Manual for more information. A power-off delay of up to 510 minutes can then be
programmed, or this feature can be disabled by programming “Infinite” delay so that there
is no automatic power-off.
Both the ignition switch and the power switch must then be on for radio power to turn on.
The delay can be overridden at any time by turning power OFF using the front panel
power switch or turning the ignition switch back ON.
This turn-off delay can allow calls to be received or the horn alert to be active for a time
after the ignition switch is turned OFF. At the same time, advantages of ignition switch
control are used such as preventing the battery discharge that may occur if the radio is left
ON for an extended period (see Section 7.6).
4.8 Horn Alert
The horn alert feature sounds an external alert such as the vehicle horn when certain calls
are received. It is available if a Horn option switch is programmed and the proper
connection has been made to the external alert. The horn alert output is pin 4 of the
accessory cable, and an external driver circuit of some type is usually required. Refer to
the 5300 ES Installation Manual for more information on how to install this feature.
Additional information on the horn alert feature follows:
• It activates when receiving any Unit call in the P25 conventional mode and any Private/
Unit and Call Alert (paging) call in the SMARTNET/SmartZone and P25 Trunked
modes. It does not sound when receiving standard Group or telephone calls, and is not
programmable on a per call basis.
• It must be manually enabled and disabled by the Horn option switch. It is not controlled
by the vehicle ignition switch. When it is enabled, “HORN ON” is briefly displayed,