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Copyright © 2020 RCA Communications Systems
www.RCACommunicationsSystems.com
Communications Systems
RDR43x0 Series Intrinsically
Safe Professional Digital
Two-Way Radios
INSTRUCTION MANUAL
For Sales, Warranty and Customer Support please contact:
Discount Two-Way Radio Corporation – Worldwide Distributor
555 W. Victoria Street
Rancho Dominguez, CA 90220
Phone: 310-224-5100 / Fax: 310-224-5101
www.discounttwo-wayradio.com
CARE AND CLEANING
• Do not directly handle the radio by its antenna or external
microphone.
• Do not place the radio in a dusty or dirty environment.
• Clean the radio with a lint-free cloth moistened with clean water
and/or a mild dishwashing liquid to remove dirt, grease and dust.
• Avoid subjecting the radio to corrosives, solvent or spirits.
Symptom
Solution
Radio will not power on
a. The battery needs charging. Recharge the battery or replace it
with a fresh one.
b. The battery is not properly installed. Remove the battery and
reattach it.
The operating time is notice-
ably shorter than normal even
though the battery is properly
charged.
a.
The battery has worn out; it is time to buy a new battery.
b.
The battery is not fully charged. Make sure that the battery is
removed after LED indicator has turned green.
Cannot talk to or hear transmis-
sions from your group members
a. Make sure that your radio operates on the same channel and / or
has the same CTCSS/CDCSS settings as your group members.
b. Make sure you are within their communication range.
Radio is on, but you cannot hear
voice transmissions or they are
not very loud
a. Turn the volume control knob to its maximum volume.
b. Return the radio to your dealer to check for microphone damage.
TROUBLESHOOTING
