Memory 4 — displayed when the radio displays a channel stored in memory.

Alert 5 — displays when weather alert is enabled. Scan 6 — displays when you enable scanning.

TRIWATCH or DUALWATCH 7 — displayed in the VHF Message Line when either mode is active. Displayed independently in the FRS band.

Locked 8 — displayed when the keypad is locked.

Battery Level Icon 9 — displays one of five different indicators to show the battery power level.

Frequency Step Indication (USA/Europe) 10 — shows the selection of the value of the frequency step between channels in AM or FM mode.

Message Line 7 — depending on the current band or the selected radio mode, this line can show you the Channel Name (for the marine band), the MENU options (Setup Options), or other data specific to the chosen band.

CTCSS Option 11 — Displays OFF when not enabled. Displays a code number when enabled for the associated channel.

Muting On 12 — appears when you select Muting from the FM Band option menu. Disappears when you disengage muting from the menu.

Owner’s Manual Conventions

To indicate a key, button, knob or other physical control, we print the label in BOLD UPPER CASE. To indicate an LCD (display) label, option, or selection, we use UPPER or Lower Case italic labels such as MENU, 5 Seconds, Channel 06.

Occasionally we indicate an option as (default). This means that the option is set in the manner indicated at the factory and is the setting when you first apply power. If you choose not to alter it, the default is the setting used by the radio.

Uniden MHS550 Radio Owner’s Manual

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Uniden MHS550 manual