ALARM

ON/OFF/SNOOZE

DC 6V Connect the supplied AC adapter or a car adapter.

AC Adapter

ZWNOTE: To avoid injury, do not connect the provided power adapter to a ceiling outlet.

ALERT ON/OFF SWITCH

The weather radio responds to National Weather Service (NOAA) alert broadcasts in two ways:

ON When ALERT is set to ON and an alert broadcast is received, an alert sounds for five minutes. To stop the alert and listen to the broadcast, press WEATHER/ SNOOZE. Press WEATHER/SNOOZE again to turn off the weather broadcast.

OFF When ALERT is set to OFF and an alert broadcast is received, an alert sounds for 10 seconds. The radio automatically switches to the weather broadcast for five minutes. Press WEATHER/SNOOZE to switch from the alert tone to the broadcast before the radio switches automatically, or to stop the broadcast before 5 minutes.

Press WEATHER/SNOOZE to turn off the broadcast.

Press ) or ( to adjust the weather alert volume to the desired level. VOL and the volume level (1 – 8) appear.

Function Setup

Function setup allows you to select a broadcast channel, and set the alarm and clock time. You can also enable or disable the signal loss reminder so that an alert sounds when the radio signal is lost.

Set Channel

Hold down SET until you hear a beep. CH 1-7 (current channel number) flashes.

Press SET to enable channel selection. NOAA appears.

Press ) or ( to manually change the channel and turn on broadcast audio. Hold down ) or ( to automatically search for the strongest channel.

Press SET to confirm the selected channel number. The alarm time flashes.

Hold down SET to return to the normal display. Or, press SET to proceed and set the alarm time (see next section).

Press SET to confirm. The minute digits flash.

Press or hold down ) or ( to set the clock minutes.

Press SET to confirm. % and the current signal loss reminder setting (On or OFF) appear.

Hold down SET to return to the normal display. Or, press SET to enable or disable the signal loss reminder (proceed to step 4 in the next section).

Enable/Disable the Signal Loss Reminder

Hold down SET until you hear a beep. CH 1-7 (current channel number) flashes.

Press ) three times. The current setting (On or OFF) and % appear.

Press SET. % flashes.

Press ) or ( to toggle between On and OFF.

Press SET to confirm. CH and the current channel number flash.

Hold down SET to return to the normal display, or press SET once to return to channel setting mode.

Enable/Disable the Alarm

Slide ALARM to ON or SNOOZE to enable the alarm. * appears.

 The alarm sounds at the preset alarm time,

Mount Your Weather Radio

To mount it on the wall, you need two screws (not supplied) with heads that fit into the keyhole slots on the bottom of the weather radio.

Use a pencil to mark the screw locations 3 11/16 in (94 mm) apart on the wall.

Drill a hole at each marked location. Thread a screw into each hole, making sure each screw’s head extends about ¼ in (6.5 mm) from the wall.

Align the keyhole slots on the bottom of the weather radio with the screw heads, and slide the radio down to secure it.

Extend the antenna.

Power Your Weather Radio

Use the supplied 6V, 300mA AC adapter for power or an AC/DC adapter (not included) to connect in your vehicle. You can also install four AA batteries (not supplied) in case AC power fails or is temporarily disconnected.

AC Power Connection

Insert the adapter’s barrel plug into the weather radio’s DC 6V jack.

Plug the other end of the adapter into a standard AC outlet.

Route the adapter’s cord through the strain relief on the radio.

Install Batteries

Slide off the battery compartment cover to remove it.

Place four AA batteries in the compartment as indicated by the polarity symbols (+ and –) marked inside.

Replace the cover.

The battery icon (j) shows battery power. When all the segments are lit, the batteries have full power. The number of lit segments decreases as battery power decreases.

Listen to a Weather Channel

When you turn on the weather radio the first time, all LCD segments light for a few seconds, and automatic channel search begins. When an active channel is found, + appears. If no channels are detected, flashes.

Press WEATHER/SNOOZE to listen to the weather broadcast.

Press ) or ( to adjust the broadcast volume to the desired level. VOL and the volume level (1 – 8) appear.

Set the Alarm Time

Hold down SET until you hear a beep. CH 1-7 (current channel number) flashes.

Press ) once. The current alarm time flashes.

Press SET. The alarm hour digits flash.

Press or hold down ) or ( to set the alarm hour.

Press SET to confirm. The alarm minute digits flash.

Press or hold down ) or ( to set the alarm minutes.

Press SET to confirm. The clock time flashes.

Hold down SET to return to the normal display or, press SET to set the clock time (proceed to step 4 in the next section).

Set the Clock Time

Hold down SET until you hear a beep. CH 1-7 (current channel number) flashes.

Press ) twice. The current clock time flashes.

Press SET. The clock hour digits flash.

Press or hold down ) or ( to set the hour.

becoming progressively louder the longer it is on.

To snooze, press WEATHER/SNOOZE. The alarm stops for 10 minutes. After 10 minutes, the alarm sounds again until you slide ALARM to OFF to turn it off.

ZWNOTES

PM appears to indicate PM hours in alarm and clock setting modes and disappears to indicate AM hours.

The signal loss reminder beep does not sound while listening to a NWS broadcast.

The backlight is always on when operating with AC power. When operating on battery power, the backlight turns on only when you press a button.

The signal strength indicator (+) shows the power of the received signal. If the signal is lost and the signal loss reminder is enabled, the radio emits a short beep at 30 seconds, 1 minute, 1.5 minutes, and so on up to 5 minute intervals. It then sounds every five minutes until you press any key, or until a signal is received. If you press a key to silence the reminder, the reminder beeps will be terminated. If a strong enough signal is detected for more than 10 minutes and lost again, the reminder beep will start again at 30 seconds.

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Radio Shack 12-550 manual Function Setup, Enable/Disable the Alarm, Mount Your Weather Radio, Power Your Weather Radio