Instruction Manual
Copyright © 2019 RCA Communications Systems
21Prodigi
TM
RDR1520 Series Professional Digital Two-Way Radio Instruction Manual
Restoring a Nuisance Channel
To restore the deleted nuisance channel,
power the radio off and back on again or
press Stop and Start to restart a scan via
the programmed Scan button.
Dual Tone Multi Frequency (DTMF)
The Dual Tone Multi Frequency (DTMF)
feature allows the radio to operate
in a radio system with an interface to
telephone or other DTMF based systems.
DTMF Codes can be programmed into
the radio by your RCA Communications
Systems dealer. DTMF receive/transmit
feature has four optional modes with 32
encode groups with up to 30 characters
per group. To use this feature, your radio
must have an access code, which is system
dependent. Please contact your RCA
Communications Systems dealer or system
administrator for more information.
Utilities
Setting the Squelch Level
You can adjust your radio’s squelch level
to lter out unwanted calls with low signal
strength or channels that have a higher
than normal background noise.
Settings: Normal is the default level. Tight
may help to lter out (unwanted) calls and
/ or background noise. However, calls from
radio within your system that are in very
remote locations may also be ltered out.
Press the programmed Squelch button to
toggle squelch level between normal and
tight.
Setting the Power Level
You can customize your radio’s power
setting to high, mid-high, mid-low, and
low for digital channels, or mid-high, mid-
low, low for analog channels.










