Cobra MRF57 MR F57W Manual - English - Page 16

Operating Your Radio Getting Started Operating Your Radio Getting Started Squelch Knob To Squelch Your Radio: 1. With the Squelch knob turned fully counter-clockwise, turn the On-Off/Volume knob clockwise until you hear a hissing (noise) sound. Weather Button c. To listen to the Weather Radio press the WX (Weather) soft key. This will activate the weather radio mode. When in the Weather mode, the Up/Down buttons will change the weather channel. 2. Turn the Squelch knob clockwise until the hissing Squelch sound stops. Turning the Squelch knob further clockwise (higher barrier) will filter weak and medium strength signals until only the strongest signal can get through at the highest squelch setting. Turn Till Hissing Sound Stops The Squelch bar graph will be shown to indicate the Squelch setting. 2 seconds after finishing the Squelch adjustment, the radio will return to the Standby mode. d. Press and release the Back softkey to return the radio to Standby Mode. HI/LO Transmit Setting • Transmit Power Output Your radio can Transmit selectively at one (1) or 25 watts of power. Cobra® suggests you maintain the low power setting for short-range communications and to avoid overpowering nearby stations with your signal. Use the high power setting for long-range communications or when you do not receive a response to a signal sent at one (1) watt. To Receive Weaker Signals: High/Low Power Button To Toggle Between The High And Low Power Modes: MRF77W GPS E & MRF77B GPS E LCD POP LABEL 1:1 1. Turn the Squelch knob counterclockwise (lower barrier). Lower Barrier  If the squelch is set so that you can hear a continuous hissing 1. Press the High/Low Power button. The LCD will show which mode is in effect. sound, the memory scan and tri-watch functions will be blocked. Some channels are restricted to use at a maximum of one 55mm Wide x 30mm High Standby And Receive Standby mode is the usual mode for the radio whenever it is (1) watt. Your radio will automatically set the power to Low Power mode when you select those channels. turned On. US A 1W While using the U.S.A. channel map, if, in an emergency, From Standby Mode, You Can: n Change your radio's settings using set-up routines. no gps Data emerg you need to increase the output power on Channel 13 and TW CALL SCAN more Channel 67 for your signal to be heard, you can override the n Receive messages on the current channel as well Low Power mode by pressing and holding the High/ Low as DSC messages. Power button. n Listen and Receive NOAA alerts if Weather Alert mode is Transmit a Message Standby Mode turned On. 1. C heck to see that your unit is set to a proper channel for the n Switch to Transmit mode using the Talk button. type of message you plan to send.  While the radio is in Standby mode, the Receive mode is 2. Toggle to the low power setting. entered whenever a strong enough signal to break squelch is 3. W ith the microphone about two (2) inches [five (5) cm] from sent to the radio. You will hear the message through whichever your mouth, press and hold the Talk button and speak into Up/Down Buttons INT 25W speakers are connected to the radio. To Change The Channel You Are Listening To, MEM the microphone. Transmit will be indicated on the LCD. 4. Release the Talk button when you are finished speaking. Your Channel 16/9 Button 21:12 11/11 You Can Choose One Of The Following: a. Press the Up/Down buttons. This will take you to 25.53.438N the next higher or lower VHF channel. For rapid advance, press and hold the Up or Down button. 110.27.843W b. Press the Channel 16/9 button. This will take 30.00 unit can only operate in either the Transmit or the Receive mode at any given time. You will not hear the response to your message unless the Talk button is released. NOTE EMERGIf the Talk button is held down for five (5) minutes, the radio will automatically cease transmitting to prevent unwanted signal generation. 26 English TW CALL SCAN you to Channel 16 with one (1) press and to Channel 9 with a second press. Additional presses will toggle between Channels 16 and 9 and the current user selected channel. MOREAs soon as the Talk button is released, it can be pressed again to resume transmission. Nothing Comes Close to a Cobra® 27