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Parts Of The Radio - Uniden UM423 AM Owner's Manual

Am marine radio
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Getting Started

Parts of the radio

Antenna
connector
(SO238)
ANTENNA
Rear panel connector functions
Connector
Antenna connector
Power connector
Accessory connector External speaker, external PA
Heat sink
Connects to
External AM antenna with
a male PL259 (SO238)
connector and 50 Ω
impedance.
Minimum 1.2m, 3dB rated
antenna for sailboats, 2.4m, 6
dB rated for power boats.
Nominal 13.8 VDC power
supply with negative ground
(10.8 VDC to 15.6 VDC)
(Red wire +, black wire -).
speaker.
5
Accessory
connector
13.8V DC
For details, see
Connecting the radio,
page 22.
Connecting the radio,
page 21.
Connecting accessories,
page 23.
Power
connector

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