Copyright © 2015 RCA Communications Systems
RPX4500/RPX4600 P25 PORTABLE RADIO – USER MANUAL
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6.1.3. BATTERY STORAGE
Fully charge a battery before storing it for an extended period of time to avoid battery damage
due to over-discharge.
Recharge a battery after three months storage to avoid reduced battery capacity due to over-
discharge.
When storing a battery, keep it in a dry place at room temperature.
6.2. SWITCH ON/SWITCH OFF
Turn the On/Off/Volume knob clockwise to switch the
portable radio on.
The display will illuminate and show a “Welcome Message”
as programmed by the PS.
After a brief time delay (approximately 2 seconds), the
display will revert to the Channel Screen, at which time the radio is ready for use.
Turning the On/Off/Volume knob fully counter-clockwise will turn the radio off.
If the radio Power Down Timer is enabled, the radio will automatically turn off after a predefined
duration of inactivity as set by the PS (i.e. no keys pressed). The radio will emit warning beeps for
10 seconds prior to switching off. Pressing any key will reset this timer.
6.2.1. DEFAULT SCREEN TRUNKED MODE
Once turned on, the radio will show the currently selected Zone and Channel. If the selected
channel is a trunking channel, the radio will scan until it finds the trunked system. This will
typically take a few seconds to determine if the trunked network is available.
Trunked mode is indicated by the
T
icon. The rotating arrow indicates that the radio is
scanning for a trunked network. When the arrow is not shown, the radio is registered with the
trunked network and ready to make or receive a call.
6.2.2. VOLUME ADJUSTMENT
The top On/Off/Volume knob adjusts the speech level at the loudspeaker or remote speaker
microphone. Rotating clockwise increases the volume and counter-clockwise decreases the
volume.
Note
The radio may be programmed so that the volume cannot be completely turned off.