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27Uniden MHS550 Radio Owner’s Manual
Note: During the time you press PTT to transmit, you may
notice the power level indicator drop to a lower level and
then return to a higher level once you stop transmitting.
This is normal and merely indicates that additional power is
required to transmit compared to that used during reception.
Alkaline Batteries and Radio Performance
If you use alkaline batteries for emergency purposes, note
that the transmitting power output may suffer as the alkaline
batteries become weak and near the end of their useful life.
In such cases, you might not be able to transmit with a full
2.5 watts of power. Replace the batteries with known fresh
batteries to be sure, or switch to a fully charged Lithium Ion
battery pack.
When the appears (Low Battery), or you hear the
Low Battery alert tone sound, be sure to replace all alkaline
batteries in use. Doing so removes any chance of degraded
radio performance and operation that can occur toward the
end of the batteries’ useful life.
Mounting the Charging Cradle
Your MHS550 Li-Ion battery may not be fully charged when
you rst turn on the radio. To facilitate convenient charging
we suggest mounting the charger cradle to either a counter
top or wall. Use the AC Adapter at home and the DC Adapter
on your boat or car.
To Mount the Cradle on a Counter Top
Locate the three holes provided in the ange surrounding
the cradle. Using the holes as a template, mark the surface.
Center punch and drill three holes to accommodate the
provided screws and washers.
Mounting on a Wall
Using the keyholes in the rear of the cradle as a template,
conrm that the area on the wall has solid backing such as
a wooden beam. Then drill holes and use the screws and