How Non-Directional Radio Beacons Help With Navigation

Fantastic strides are created in location-based technology since the times when sailors used a primitive compass to navigate their way around uncharted waters. Today, a global positioning system (GPS) is preserved by the United States government, and also this navigation instrument permits the owner of a receiver to determine his or her place by communication with four or more GPS satellites. This technology has a range of applications and plays a vital part in operations done by the military, civil, and commercial users. GPS technology even helps pilots navigate commercial air space.

As further advancements are made in the area of GPS technology, some organizations have turned to more sophisticated devices to achieve their monitoring requirements. For instance, differential GPS apparatus and non-directional radio beacons are used more often by groups requiring a greater level of location accuracy. This article will take a good look at both of these location-based technology options.

Differential GPS devices

These devices are known primarily for their improved precision. Professionals working in search-and-rescue operations need a greater degree of precision to monitor individuals so that they utilize differential GPS apparatus. Top-of-the-line units equipped with this technology boast accuracy to ten cm, whereas conventional GPS devices promise accuracy within fifteen meters. The motive differential GPS products offer you such a high degree of accuracy is that they communicate with a network of stationary, ground-based systems to measure location. These systems carry a known, fixed position that’s compared to the location measured by conventional GPS systems. The ground-based apparatus then compare the dimension with the famous location to make a digital correction signal. This digital correction signal permits the differential GPS device to provide more accurate measurements when locating individuals or devices in wooded areas, at sea, or even in areas where a mobile phone is not able to attain service. A satellite-based augmentation process is similar, with the exception being it uses orbiting satellites rather than ground-based methods to transmit alterations. See: Xeos Technologies | Marine Telemetry Tracking Equipment And Solutions | Xeostech

Non-Directional Radio Beacons

Non-directional radio beacons are wireless transmitters situated at a known location and are most commonly used for aviation and marine navigation. Unlike some of those GPS resources mentioned previously, non-directional radio beacons don’t use location information to supply instructions. All these beacons emit signals in their own fixed location, which pilots can use to ascertain where they are located. Signs additionally indicate that specific pathway an airplane must follow, so in-air crashes are prevented by setting aside particular airways for every single aircraft.

The signals that non-directional radio beacons emit follow the curvature of the planet, making these signs more beneficial compared to VHF omnidirectional range signals. In essence, these signals can be obtained at a lower elevation from a larger distance. But, VHF omnidirectional range signs are even more common in developed countries, while non-directional radio beacons are somewhat more prevalent in undeveloped areas or densely populated regions of developed nations. Purchase your next oceanographic instruments from Xeos.

Sailing Safety Equipment – Emergency Locator Beacons, an Intro

As more people spend time on leisure activities the number of individuals sailing can be increased. For those seeking to set sail on boats larger than the smallest dingy using a placing device which can alert the police and ship your location in case of an emergency isn’t only helpful but could be the difference between death and life.

Traditionally the security equipment a yacht carries would be a VHF radio and distress flares. But sometimes events can occur which mean you may not have enough time to contact anyone with your onboard radio; for example, a catastrophic failure of the boat because of hitting a submerged object like a whale or a stone could mean that the boat sinks in not much more than a few minutes. In such scenarios, all you have time for is to get your life raft and grab bag of survival rations etc and be sure that everyone has escaped. If you’ve got an emergency locator beacon it’s possible to trigger this really is in a matter of seconds. Once activated it will, via the COSPAS-SARSAT satellite system contact the search and rescue authorities at which the beacon has been enrolled; then they will then, having checked with all the contact details left when the beacon was enrolled to authenticate the call, notify the local coastguard or search and rescue services at the country or region that the signal has come from. The exact location is either sent as GPS coordinates or, if GPS is not essential to the beacon product, by triangulating between different satellites which are used by the COSPAS-SARSAT system.

There are two main types of emergency beacon; These are the EPIRB (Emergency Position Indicating Radio Beacon) and PLB (Personal Locator Beacon). The most recent EPIRBs and PLBs both operate on 406 MHz. An EPIRB tends to be bigger than a PLB and can either be stored in an Auto-housing, which triggers the EPIRB as it comes in contact with water or even as a single unit that’s activated by means of a button or switch. Once activated they’ll continue to transmit a signal for a minimum of 48 hours. They will also float. A PLB will tend to be much more compact than an EPIRB (often no longer than the size of a cell phone), doesn’t trigger automatically, and does not float, although occasionally it may do if it is kept in a flotation pouch. It is going to only transmit for no less than 24 hours.

Ordinarily, an EPIRB is enrolled to a ship, even though a PLB is registered to a person. So based on the size of the boat and the number of crews you’ve you may choose either an EPIRB or a PLB. Kannad Marine offers a range of EPIRB and PLB products suitable for sailing.