Operating Your Radio

BURP Feature

BURP Feature

Floating Radio

46 English

Floating Feature

BURP Feature

Cobra’s BURP feature allows the operator to expel water from inside the speaker grill. This is especially useful if the radio is dropped overboard or during extreme foul weather conditions. In these conditions, water can become trapped in the speaker grill and muffle the audio.

To Activate BURP:

1.Press and release the 16 and SCAN keys at the same time.

2.The BURP tone(s) at maximum level will sound from the internal speaker for eight seconds.

3.During this time, the LCD will display the following “burp” as shown to the left.

4.Hold the radio with the speaker grill down to help the water drain out.

5.Press the ESC key at any time to cancel the BURP feature.

Floating Radio

This radio is designed to float if dropped overboard. The orange center makes it visible and easy to retrieve. This rugged radio is also designed to meet JIS7 (IPX7) specifications. This means it’s designed to operate properly after being submerged in one meter deep water for 30 minutes.

NOTE

Do not leave the radio floating in water permanently. This could cause premature corrosion of the battery contacts and other damage.

The radio is only designed to float with its included Lithium-ion battery. Using other approved batteries might cause the radio to sink. This also applies to the AA battery tray included, depending on the weight of the AA batteries used.

Maintenance and

Troubleshooting

Operating Your Radio

Maintenance

Very little maintenance is required to keep your CobraMarine VHF radio in good operating condition:

Keep the radio and charger clean by wiping with a soft cloth and mild detergent. Do not use solvents or harsh or abrasive cleaners, which could damage the case or scratch the LCD screen.

If the radio is exposed to salt water, wipe with a soft, moist cloth at least once a day to prevent buildup of salt deposits, which could interfere with button operation.

If the radio will be stored for a long period, such as over the winter, remove the batteries from the battery tray and store them in a separate package. This is especially important if you are using alkaline batteries.

Troubleshooting

 

 

 

 

 

 

 

 

 

 

Problem

Possible Cause(s)

Solution(s)

 

 

 

 

 

 

 

 

 

 

No display on LCD

Batteries are exhausted

Recharge or replace batteries

 

 

when radio is turned

Batteries not installed properly

Remove batteries and reinstall

 

 

On

 

 

 

according to polarity markings

 

 

 

 

 

 

 

 

 

 

 

 

 

Batteries run

Batteries are at the end of

Replace with new batteries

 

 

down quickly

their life

 

 

 

 

 

 

 

 

 

 

 

 

Will transmit at one

Batteries are low

Recharge or replace batteries

 

 

(1) or three (3) watts,

Selected channel is limited

Switch to another channel

 

 

but not at six (6) watts

 

 

to one (1) watt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bluetooth capable

There might be a

Try with another brand or

 

 

phone will not pair with

compatibility issue

model mobile phone to

 

 

the radio or operation

 

confirm the problem

 

 

isn’t as expected

 

Contact Cobra with the details

 

 

 

 

 

 

 

 

 

Will not transmit

Selected channel is limited

Switch to

 

 

 

to receive only

another channel

 

 

 

 

 

 

 

 

 

No sound from

Volume level is too low or

Re-adjust volume

 

 

speaker

squelch level is too deep

and squelch

 

 

 

 

 

 

 

 

 

No response to

Button lock is On

Press Backlight/

 

 

button press

 

Key Lock button

 

 

 

 

 

 

 

 

 

No answer to calls

Out of range of

Switch to three (3) or six (6)

 

 

 

other station

watts or move closer

 

 

 

Signal is blocked

Move until you have a “line-of-

 

 

 

by terrain

sight” to the other station

 

 

 

47

 

 

 

 

 

 

 

 

 

 

 

 

Page 26
Image 26
Cobra Electronics MR HH475 owner manual Floating Feature, Maintenance Troubleshooting, Burp Feature, Floating Radio

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.