Tag Archives :HF

It’s for good reason that we make high quality marine VHF (Very High Frequency) antennas available. The higher band of a marine VHF antenna provides a user with a variety of benefits; especially over HF (High Frequency) band. This is why local governments and several broadcasters have switched from the HF band to the VHF band.  ...

You must carry a marine band radio if you go more than five miles from the mainland shore. The choice of radios is up to you, it can be 27 MHz, VHF or HF. When at sea, you must have your radio turned on and tuned to the distress frequency. ·         For 27 MHz, this frequency is 27.88. ·         For VHF, this frequency is channel 16. ·         Not all Sea Rescue Groups monitor Channel 88 and VHF Channel 16.  ...

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).  ...

With the development of technology, communication has become more and more convenient, but new technology hasn’t replaced the marine radio. If your boat is boat is broken down, sinking, capsized or there is a medical emergency, you will need a radio to call for help. If you are going more than five miles offshore, we highly recommend having either VHF, a 27 MHz, or HF radio. While you are at sea, you must have your radio turned on and tuned to the distress frequency.  ...

The ATIS signaling protocol is based on the protocol used for Digital Selective Calling (DSC), with the ATIS transmissions having the format specifier field set to 121. While the DSC transmission is exclusively on Channel 70, the ATIS digital signal is transmitted on the same VHF channel as the voice transmission.  ...

Radio is an important safety tool for all mariners who venture out on the water, whether offshore or on inland waterways. VHF marine radios are used for a variety of purposes including; contacting harbours & marinas, summoning rescue services or ship-to-shore and ship-to-ship communication. Knowing what radio to choose can be quite confusing because of the range of models and features available. Here we go through some important considerations when choosing a VHF marine portable of fixed radio?  ...

Living is easy in the Summertime, and having reliable communication when on the water will help ensure that your days are safe and worry-free. A marine radio is a vital piece of safety equipment for every boat, and you have options when it comes to choosing the best marine radio for your circumstances – and a lot of questions to answer. Do you need a fixed mount radio, or will a handheld model be a better choice? How important is GPS? Are marine radios waterproof?  ...

There are three types of marine radio available. 27 MHz marine radios, commonly called 27 'meg', are popular for use on recreational boats and provide short-range communications, but not the range or performance of a VHF radio. VHF marine transceivers provide better short-range communications than a 27 MHz radio. MF/HF marine transceivers offer medium to long-range communications.  ...

Waterproofing has increased with many of the best handheld marine radios now able to float for sustained periods of time without any damage to the internal electrics. Many of these floating handheld VHFs also offer some form of automatically activated strobe to help you find it in the dark if it has been dropped in the water. RM40 is a feature-rich, top spec handheld VHF, with impressive functionality.  ...

Significant improvements in a number of areas in recent years have seen handheld VHF marine radios move from being purely portable communications devices to something altogether more useful. As technology has shrunk, battery life improved and screens become clearer, handheld VHFs can now offer many of the safety features that used to be available only on fixed marine radios. As a sailor who often uses marine aircraft, you should know some of its technical terms.  ...