Uniden MHS550 Radio Owner’s Manual
2
Using the Radio (General Operation) ........................................21
Setting the volume .....................................................................21
Setting the squelch level ............................................................21
Changing the channel ................................................................21
Contrast .....................................................................................22
Lamp adjust ...............................................................................22
Turning the key beep on and off ................................................22
Using the external speaker/mic jack .........................................23
Using the Marine VHF Band .......................................................23
Reading the marine band screen ..............................................23
Marine band status messages ...................................................24
Marine VHF band menu options ................................................24
Making a transmission ...............................................................25
Boosting the transmission power ..........................................26
Choosing Triple Watch or Dual Watch .......................................27
Setting the UIC channel mode (USA/CAN/INT).........................27
Changing channel names ..........................................................27
Using FIPS codes for weather alerts .........................................28
Using the Family Radio Service (FRS) Band ............................30
Reading the FRS band screen ..................................................30
FRS band status messages.......................................................30
FRS band menu options ............................................................31
Setting CTCSS privacy codes ...................................................31
Using the AM Band ......................................................................33
Reading the AM band screen ....................................................33
AM band menu reference ..........................................................34
Using the FM Band ......................................................................34
Reading the FM band screen ....................................................35
FM band menu options ..............................................................35
Using the Aircraft Band ..............................................................36
Reading the aircraft band screen ..............................................36
Aircraft band menu options ........................................................37
Maintenance and Troubleshooting ............................................37
Common questions ....................................................................38
