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Category Archives :technology suggestion

How the frequency of marine radio works

Marine radios have transmitters that send out radio waves and receivers that pick up radio waves. The radio waves produced will have a set frequency. Specific groups of frequencies behave differently. For marine radio we group frequencies as: Very high frequency (VHF), Medium frequency (MF), High frequency (HF).  ...

Read more  VHF,  marine radio,  MF,  HF

Distress Alert

Distress alerts may be transmitted as a single frequency or a multi-frequency call attempt preceded by a dot pattern. MF/HF equipment should be capable of using both single and multi-frequency call attempts. Where a distress alert attempt contains more than one consecutive distress alert on the same frequency, these consecutive alerts should be transmitted with no gap between the end of one call and the start of the dot pattern of the following call to enable bit synchronization to be maintained  ...

Read more  DSC,  distress,  frequency

AIS Fishing Net Buoys is not AIS

What is AIS? AIS is an important maritime navigation safety communications system intended to limit maritime accidents by automatically broadcasting and exchanging marine vessel information – including a vessel's identity, type, position, course, speed, navigational status, and other safety-related information – between and among AIS-equipped shore stations, aircraft, and other vessels.  ...

Read more  AIS,  Transmitter,  AIS frequency

How to know if you need a new marine antenna

While out at sea, being able to communicate using marine antennas is of vital importance. Whether it’s for commercial fishing or for recreational use, a marine antenna is a vessel’s lifeline to the outside world. Your boat’s marine antenna is something that you don’t want to take for granted. While many people do their best to predict weather patterns and swear that their own experience has taught them enough to be safe at sea,  ...

Read more  marine antenna,  lifeline,  marine radio,  boat

Marine VHF Radio RA27 MMSI Parameter Setting

There are two types of maritime VHF radio: Handheld and fixed, in which the fixed maritime VHF radio contains MMSI code. Different brands of maritime VHF radios have different editing methods for MMSI code. The following is a brief introduction to the MMSI code editing method of RA27.  ...

Read more  MMSI,  Marine VHF radio

What to consider when you choose a Marine VHF radio?

Marine VHF radio is an important safety tool for mariners, but the wide range of available models and functions makes it difficult to choose when buying. Below we give some suggestions to help you make a choice. First, the Marine VHF radio must be easy to use. The maritime climate and environment change rapidly. Second, the Marine VHF radio must have standard power, 25W or 5W.  ...

Read more  Marine VHF radio,  maritime climate,  power,  noise cancelling

DSC could save your life

Digital Selective Calling (DSC) is primarily used to initiate distress calls to shore stations and other vessels via your DSC radio. All DSC-equipped shore stations and vessels will hear your distress signal as an alarm. It will be repeated every 4 minutes until acknowledged. A DSC alert signal has a 15% greater range than a voice transmission and therefore is more likely to reach a vessel or rescue center  ...

Read more  DSC,  MMSI,  save life,  coastguards

VHF marine radio for trainers

In a few weeks, various sailing competitions will be held one after another. Many people began to prepare various equipment, and many enthusiasts participated in the training. The coaches in the training center will do their best. Therefore, almost every coach must have a VHF marine radio.  ...

Read more  marine radio handheld,  marine VHF radio,  license

Simple ways to improve your marine radio coverage

The antenna is an important component to marine radios and if there’s an issue with the antenna there’s going to be an issue with your coverage and range. Check to make sure the radio’s antenna is not bent, cracked, or otherwise broken to the point that the metal coiled antenna piece is exposed. In addition, make sure the antenna is screwed on correctly to the antenna connector of the radio.  ...

Read more  Antenna,  VHF marine radio,  radio coverage

What to consider when choosing a VHF marine radio

Look at why you need a VHF marine radio and ask yourself “ what is best for me?” If you want to move onto venturing further out to sea, a small budget fixed radio providing the extra range may be worth considering. A large yacht sailing further offshore will need greater range so a fixed mount radio will be a better solution. And all boat and yacht should consider AIS function.  ...

Read more  AIS,  VHF marine radio,  best for sailing