External Speaker; Microphone Jack; Microphone Hanger - RCA BRM300DV Instruction Manual

BRM300D
a lightning arrester to reduce the risk of
fire, electric shock, and transceiver damage.
Accessory Connections

External Speaker

If you plan to use an external speaker, choose a
speaker with an impedance of 8 Ω. The external
speaker jack accepts a 1/8" (3.5 mm) mono
(2-conductor) plug. (Figure 9)
External Speaker
Figure 9
Professional Digital Two-Way Mobile Radio Instruction Manual
TM
External
Speaker
Connection
Copyright © 2015 RCA Communications Systems

Microphone Jack

For voice communications, connect a 600 Ω
microphone equipped with an 8-pin modular plug
into the modular socket on the front of the main
unit. Press firmly on the plug until the locking tab
clicks. (Figure 10)

Microphone Hanger

Attach the supplied microphone hanger using
included screws in an easy to access location
that will not interfere with vehicle operation.
(Figure 11)
Figure 10
Figure 11
Microphone hanger
screws - 3mm x 10mm
13