Cobra Electronics MR HH330 owner manual Squelch Control, USA/International/Canada Channel Maps

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Operating Your Radio

Channel Up/Down Buttons

Squelch Control

Setup Mode Programming

Squelch Control

Squelch Control filters weak signals and radio frequency (RF) noise so that you will clearly hear the signals you want. The Squelch Control on this radio is set through the following keypad operation.

To Set Squelch Control:

1. With the power On, push and hold Call/Enter/Setup button to access the Setup menu.

2.Squelch control will be the first menu item to appear. Press the Channel Up and Channel Down buttons to set level. The signal level bar graph shows squelch level while you are in Setup mode on the squelch adjust function.

3.To tune your squelch, press the Channel Down button until you hear a hissing sound, then press and release the Channel Up button until the hissing stops. This will establish a “Baseline” squelch.

4.By pressing the Channel Up button further, you will filter weak and medium strength signals. By pressing Channel Down button, you will receive weaker signals.

5.Press the Call/Enter/Setup button to save this entry and move to the next Setup mode programming.

NOTE

If the Squelch is set so that you can hear a continuous hissing sound, the Memory Scan and Tri-Watchfunctions will be blocked.

Operating Your Radio

Active Channel Map Icon

Channel Up/Down Buttons

Call Tone Alert

Setup Mode Programming

USA/International/Canada Channel Maps

Three (3) sets of VHF Channel Maps have been established for marine use in the USA, Canada, and the rest of the world (International). Most of the channels are the same for all three (3) maps, but there are definite differences (see table in the Apendix on page 52). Your radio has all three (3) maps built into it and will operate correctly in whichever area

you choose.

To Set Channel Map Operating Area:

1.The Channel Map mode is the second mode on the Marine (VHF) Setup programming.

2.U, I and C will display, with the current setting (the U icon is the default) flashing.

3.Press Channel Up/Down button to select the U, I or C icon.

4.Press Call/Enter/Setup button to save this entry and move to the next Setup mode programming.

NOTE

One or two of the channel maps might have been disabled for sales of this radio in some countries.

Call Tone Alert

If Call Tone Alert is set to On, the radio will alert you to a call from a compatible Cobra radio with a Call Alert.

To Set Call Tone On or Off:

1.Display will show Call Tone icon and ON or OFF flashing.

2.Press Channel UP/Down button to select ON or OFF.

3.Press the Call/Enter/Setup button to save this entry and move to the next Setup mode programming. The Call Tone icon will show in the Standby mode when set to ON.

20 English

Nothing Comes Close to a Cobra® 21

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Contents Our Thanks to You Customer Assistance Radio Controls IndicatorsFor Assistance in the U.S.A For Assistance Outside the U.S.ABacklit LCD Liquid Crystal Display Screen Backlit LCD Screen Product FeaturesAlkaline batteries. Good for emergency Near or distant callingTable of Contents General Precautions Important Safety InformationSafety Training Information Important Safety InformationRecommendations for Marine Communication Recommendations for Marine CommunicationFCC Licensing Information Wrist Strap and Belt Clip Included in this PackageBelt Clip Wrist StrapBatteries and Charger Installing the Battery PackInitial Charge Batteries and ChargerMaintaining the Battery Charge To Remove Battery Pack from RadioAlkaline Batteries Common Radio Functions Getting StartedGetting Started Radio Speaker and MicrophoneChannel Up/Down Buttons Backlight/Key Lock ButtonScan Button Setup Mode Programming Setup Mode ProgrammingHigh/Medium/Low H-M-L Power Button To Toggle Between H-M-L Power ModesUSA/International/Canada Channel Maps Squelch ControlCall Tone Alert Key Tone Mode Roger Beep ModeStandby/Receive Transmit Call Tone SelectNoaa Emergency Weather Alert Marine Standby and Receive Rx ModeNoaa Test Alert System Standby/Receive and TransmitChannel 16/9 Mode Weather WX Standby ModeAdvanced Operation Advanced OperationTri-Watch Setup To Program or Edit the Tri-Watch Channels Tri-Watch ModeUsing Tri-Watch Tri-Watch Scan Mode To Exit Memory Location Mode Memory Location ModeTo Program Memory Locations To Recall a Stored Memory LocationMemory Location Scan Mode Channel Scan ModeTo Enter Channel Scan To Enter Memory Location ScanMaintenance Troubleshooting Floating FeatureBurp Feature Floating RadioVHF Marine Radio Procedures Voice Calling Voice CallingVessel Corsair is calling the vessel Vagabond Emergency Messages and Distress Procedure Emergency Messages Distress ProcedureRadiotelephone Calls Radiotelephone CallsMarine Distress Procedure Marine Emergency SignalsIf You Hear a Distress Call Limited 3-Year Warranty Warranty and Trademark AcknowledgementExclusions This limited warranty does not apply For Products Purchased In The U.S.ASpecifications Product ServiceProduct Service SpecificationsVHF Marine Channel Assignments Port Operations Public Correspondence Marine OperatorNavigational Maritime Control03A 01A04A 05A19A 18A20A 21A28B 25B61A 62ACommunications in lower Mississippi River 66A79A 78A80A 81AWeather Channel Assignments Weather Channel AssignmentsAsignaciones de canales meteorológicos Accessories AccessoriesAlkaline Battery Tray Long Life Battery
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