Motorola 53724, MR350RVP, MR351 technical specifications Weather Receiver, Channels and Frequencies

Warning: The Emergency Alert feature should only be used in the event of an actual emergency. Motorola is not responsible if there is no response to the emergency alert from the receiving group.

Built-in Flashlight

Press and hold the flashlight button to turn and keep the light on. The switch functions as a momentary control for the light.

Note: Turn off the flashlight when not in use to conserve battery power.

Keypad Lock

To avoid accidentally changing your radio settings:

1.Press and hold until displays.

2.When in lock mode, you can turn the radio on and off, adjust the volume, receive, transmit, send a call tone, and monitor channels. All other functions are locked.

To unlock the radio, press and hold until is no longer displayed.

Scanning Channels

Use scan to search the 22 channels for transmissions from unknown parties, to find someone in your group who has accidentally changed channels, or to quickly find unused channels for your own use.

There is a priority feature and 2 modes of scanning ( basic and advanced ) to make your search more effective. The basic scan mode uses the channel and code combinations for each of the 22 channels as you have set them ( or with the default code value of 1). The “Advanced Scan” mode will scan all channels for any and all codes, detect any code in use, and use that code value temporarily for that channel.

Priority is given to the “home channel,” that is, the channel (and Interference Eliminator Code) your radio is set to when you start the scan. This means the initial channel (and code setting) is scanned more often than the other 21 channels, and your radio will respond quickly to any activity occurring on the home channel as a priority.

To start Scanning:

1.Briefly press the key. The scan will appear in the display, and the radio will begin to scroll through the channel and code combinations.

2.When the radio detects channel activity matching the channel and code combination, it stops scrolling and you can hear the transmission.

3.To respond and talk to the person transmitting, press within five seconds after the end of the transmission.

4.The radio will resume scrolling through the channels five seconds after the end of any received activity.

5.To stop scanning, briefly press the key.

To start Advanced Scanning:

1.Set the Interference Eliminator Code to “zero” or OFF.

2.Briefly press the key. The scan will appear in the display, and the radio will begin to scroll through the channels. No Interference Eliminator Codes will filter what is heard.

3.When the radio detects channel activity with ANY code (or NO code), it stops scrolling and you can hear the transmission. Any Interference Eliminator Code that may be in use by that party will be detected and displayed.

4.To respond and talk to the person transmitting, press within five seconds of the end of the transmission. The radio will transmit using the newly detected Interference Eliminator Code.

5.The radio will resume scrolling through the channels five seconds after the end of any received activity.

6.To stop scanning, briefly press the key.

Scanning Notes:

1.If you press while the radio is scrolling through inactive channels, the transmission will be on the “home channel”.

Scanning will resume five seconds after the end of your transmission. You may press the key to stop scanning at any time.

2.If the radio stops on an undesired transmission, you may immediately resume the scan by briefly pressing or .

3.If the radio repeatedly stops on an undesired transmission,

you may temporarily remove that channel from the scan list by pressing and holding or for three seconds. You may remove more than one channel in this way.

4.To restore the removed channel(s) to the scan list, turn the

radio off and then back on, or exit and re-enter the scanning mode by pressing .

5.You cannot remove the home channel from the scan list.

6.In Advanced Scan, the detected code will only be used for one transmission. You must note the code, exit scan, and set that detected code on that channel to permanently use the detected code.

Weather Receiver

Your radio can tune in to broadcasts by the United States National Oceanic and Atmospheric Administration (NOAA) Weather Radio and Environment Canada Weatheradio.

You can listen to a weather channel (see “Weather Channels and Frequencies” table below) or set your radio to alert you to emergency weather broadcasts that interrupt routine broadcasts. When you listen to a weather channel, you cannot use your radio in scan mode or for two-way communications.

Both NOAA and Environment Canada have transmitters located throughout the United States and Canada, respectively. These transmitters broadcast watches, forecasts, and other information 24 hours a day.

Note: NOAA weather radio stations are assigned to cover specific areas and service may be limited. Please check with your local weather office for frequency and details, or visit www.weather.gov/nwr in the US or www.msc.ec.gc.ca/msb/weatheradio in Canada to view the appropriate transmitter for your area.

The use of the NOAA logo does not provide an endorsement or implied endorsement by NOAA’s National Weather Service, nor does the use of the Weatheradio logo provide an endorsement or implied endorsement by Environment Canada.

Turning Weather Channel Reception On and Off

1.To turn weather reception on, press and hold for 3 seconds.

2.To turn off, press or turn the radio off and then back on.

Setting the Weather Channel

Your radio receives weather frequencies:

1.After turning weather reception on, press . The current channel flashes.

2.Press or to select the appropriate channel with good reception in your area.

3.Press to save the weather channel setting.

Setting the Weather Alert

Your radio can be set to respond to NOAA Weather Radio emergency messages. A special alarm tone sounds an alert and turns on the weather receiver to give you immediate weather and emergency information.

1.After turning weather reception on, press twice. On/Off displays.

2.Press or to select On/Off. If you activate Weather

Alert and return to two-way mode, will display.

3.Press to save the Weather Alert setting.

4.Press to return to two-way mode.

As with two-way radio reception, weather channel reception depends on how close you are to a transmitter and whether you are indoors or outdoors. Because weather channels are transmitted without codes, they may contain static or noise. Weather Alert will not function while actively transmitting or receiving in two-way mode.

Weather Channels and Frequencies

Weather	Frequency	Weather	Frequency
Channel		Channel
WX1	162.550 MHz	WX7	162.525 MHz
WX2	162.400 MHz	WX8	161.650 MHz
WX3	162.475 MHz	WX9	161.775 MHz
WX4	162.425 MHz	WX10	161.750 MHz
WX5	162.450 MHz	WX11	162.000 MHz
WX6	162.500 MHz

Channels and Frequencies

Channel	Frequency	Description	Channel	Frequency	Description
1	462.5625	GMRS/FRS	12	467.6625	FRS
	MHz			MHz
2	462.5875	GMRS/FRS	13	467.6875	FRS
	MHz			MHz
3	462.6125	GMRS/FRS	14	467.7125	FRS
	MHz			MHz
4	462.6375	GMRS/FRS	15	462.5500	GMRS
	MHz			MHz
5	462.6625	GMRS/FRS	16	462.5750	GMRS
	MHz			MHz
6	462.6875	GMRS/FRS	17	462.6000	GMRS
	MHz			MHz
7	462.7125	GMRS/FRS	18	462.6250	GMRS
	MHz			MHz
8	467.5625	FRS	19	462.6500	GMRS
	MHz			MHz
9	467.5875	FRS	20	462.6750	GMRS
	MHz			MHz
10	467.6125	FRS	21	462.7000	GMRS
	MHz			MHz
11	467.6375	FRS	22	462.7250	GMRS
	MHz			MHz

4 MR350/351