Filter
Top Products
24
Uniden MHS550 Radio Owner’s Manual
Indicator Sounds
The radio sounds several tones designed to convey
important information. Become familiar with them to use the
radio more effectively.
Power On — a rapidly rising tone sounds to conrm that
power is applied.
Keypad Touch Single Tone — sounds to conrm you have
pressed a single key
Keypad Touch Double Tone — sounds to conrm you
pressed and held down a key for 2 seconds.
Error Tone — sounds to indicate an invalid key press or op-
eration.
PTT Error Tone — sounds to indicate an invalid press of the
PTT switch.
WX ALERT Tone — a rising and falling tone sounds when a
weather alert is received and decoded.
SAME Tone — sounds a conrmation tone when entering a
FIPS code.
PTT Time Out Tone (PTT Error Tone) — sounds when
your continuous transmitting time exceeds 5 minutes. Also
sounds if you attempt to transmit with low power battery. If
the battery icon continues to blink once you stop pressing the
PTT key, you must recharge/replace the currently installed
battery(s)
Batteries
Your Uniden MHS550 comes equipped with a Lithium Ion
battery which snaps into the back of the radio and secures
with a latch. The battery has a minimal charge when shipped.
Before use, place the radio in the Charging Cradle and
charge the battery for four hours. Note that unlike some other
types of rechargeable batteries, a Lithium Ion battery can be
“topped-off” as needed with no degradation of performance.