Motorola RDU2020 User Manual page 38

Symptom
Limited talk
range
Message not
received
Heavy static or
interference
Low batteries
RDX
36
Try This:
Steel and/or concrete structures, heavy foliage, buildings or
vehicles decrease range. Check for clear line of sight to improve
transmission.
Wearing radio close to body such as in a pocket or on a belt
decreases range. Change location of radio.
Confirm radios have the same Channel, Frequency, Interference
Eliminator Code settings.
Recharge or replace batteries.
Move to another location. Obstructions and operating indoors, or
in vehicles may decrease range.
Radios are too close, they must be at least five feet apart.
Radios are too far apart or obstacles are interfering with
transmission.
Recharge or replace battery pack. Extreme operating
temperatures affect battery life. See "Battery Life" on page 24.