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Regulations And Safety Warnings; Basic Radio Guidelines; Antenna Selection And Installation - Uniden UM423 AM Owner's Manual

Am marine radio
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Regulations and Safety Warnings

Regulations and Safety Warnings

Basic radio guidelines

You should familiarize yourself with the rules on marine radios and be aware
of which rules apply to your boat.

Antenna Selection and Installation

Your UM423 AM has been designed to accommodate all of the popular marine HF-
AM antennas. However, the selection and the proper installation of the antenna is the
responsibility of the user or installer.
The antenna used with this radio should be installed using the following guidelines to
ensure a safe distance between the antenna and persons close by.
Small whip antennas (3 dB) or smaller should be installed with at least 1m away
from any area where people are likely to be.
Larger antennas (6 dB or 9 dB) should be installed with at least 2m away.
While the radio is transmitting, do not come closer to the antenna than the
recommended safe distance.
Do not touch the antenna when the radio is powered on and might begin
transmitting.
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