Instruction Manual
Copyright © 2019 RCA Communications Systems
19Prodigi
TM
RDR1520 Series Professional Digital Two-Way Radio Instruction Manual
• Emergency Alarm acknowledgement is
received (for Emergency Alarm only), OR
• All retries to send the alarm have been
exhausted, OR
• The Emergency Off button is pressed,
OR
• The [PTT] button is pressed
Note: If your radio is powered off, it exits
the Emergency mode. The radio will not re-
initiate the Emergency mode automatically
when it is turned on again.
Channel Scan
Scan lists are created and assigned to
individual channels / groups. The radio
scans for voice activity by cycling through
the channel/group sequence specied
in the scan list for the current channel /
group. Your radio can support up to 250
scan lists, with a maximum of 16 members
in a list. Each scan list supports a mixture
of both analog and digital entries. You
can add, delete, or prioritize channels by
editing the scan lists.
Scan Instructions and Methods
When a scan is initiated, your radio cycles
through the programmed scan list for the
current channel looking for voice activity.
The LED blinks red.
There are two ways of initiating scan:
• Manual Scan: Initiate scan manually
using the programmed by your RCA
Communications Systems dealer Scan
ON/OFF side button. When scan is
initiated, radio will detect all channels /
groups on the programmed scan list.
• Auto Scan: Your radio automatically
starts scanning when you select a
channel / group that has Auto Scan
enabled










