Cobra Electronics MR HH475 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, press 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 64). 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.

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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 FeaturesTable 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 Roger Beep Mode Bluetooth Mode Pairing ProgrammingKey Tone Mode Call Tone SelectCall Tone Select Ring Tones Bluetooth Mode ProgrammingVOX On or Off To Change Between VOX On and OffTo Set Bluetooth On and Off Bluetooth Radio On/OffStandby/Receive Transmit To Set WX Alert On or OffNoaa 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 ScanUsing Rewind-Say-AgainTM Using Rewind-Say-AgainTMto Record Audio TransmissionRewind Operation ExampleInitiate a Phone Call Mobile Phone OperationAnswer Incoming Phone Calls To Initiate from the Mobile PhoneTo End Pairing At the End of the Day Using Voice DialLast Number Redial To Initiate a Voice Dial CallGeneral Bluetooth Operation and Frequently Asked Questions Maintenance 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 62A66A 79A 78A80A 81AWeather Channel Assignments Weather Channel AssignmentsAsignaciones de canales meteorológicos Accessories AccessoriesLong Life Battery Lapel Speaker/Microphone

MR HH475 specifications

The Cobra Electronics MR HH475 is a robust and versatile marine handheld VHF radio designed for boating enthusiasts who prioritize safety and reliability on the water. This device is ideal for both recreational and professional mariners, featuring a wide range of functionalities that ensure seamless communication in challenging maritime environments.

One of the standout features of the MR HH475 is its impressive 6-watt transmission power. This allows for clear communication over long distances, making it essential for safety during unforeseen emergencies. Coupled with its robust range of channels, including all United States, Canadian, and international VHF marine channels, users can easily stay connected with other vessels and coastal services, ensuring reliable communication at all times.

The MR HH475 also showcases the latest technology with its Integrated GPS functionality. This feature provides accurate location tracking, which is invaluable during emergencies when a vessel’s position needs to be communicated quickly. The built-in GPS can transmit the vessel's coordinates over the radio, enhancing overall safety and response times in crisis situations.

Another notable characteristic is its Dual Watch feature. This function allows users to monitor two channels simultaneously, ensuring that they don't miss important communications while they are engaged in other conversations. The dual watch capability is especially useful in busy maritime areas where multiple channels are in use.

In terms of durability, the MR HH475 boasts a waterproof design, meeting the JIS7 standard. This means it can be submerged in water for a limited time without suffering damage, reassuring users that it can withstand the rigors of marine environments. The radio is also compact and lightweight, making it easy to carry or mount on a boat without taking up valuable space.

Additional features include a built-in flashlight for enhanced visibility during nighttime operations and easy-to-use controls with a backlit display for usability in low-light situations. The Cobra MR HH475 also supports NOAA weather channels, providing crucial updates on weather conditions, helping users make informed decisions while out on the water.

Overall, the Cobra Electronics MR HH475 is an excellent choice for those looking for a reliable marine VHF radio with advanced features like GPS and dual watch capabilities, marrying performance with the durability needed for life on the water. Whether for sailing, fishing, or emergency preparedness, this device stands out as a trusted companion on marine adventures.
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