Author Archives: info@retevis.es

Best Handheld Ham Radio for 2022

HD1 IP67 FPP Dual Band Ham Radio

Ham radios, also called amateur radios, are devices that use radio frequencies as a way to communicate and connect with people. They use voice, data, image, and text communications through RF spectrum frequencies. Owning a handheld ham radio might sound far-fetched, especially in this digital age. Many people don’t believe that ham radios are used […]

Best Long Range Walkie Talkies for 2022

Comms are dark sorcery, and “long-range walkie talkies” can sound like an oxymoron, but the best long-range walkie talkies are actually quite simple to use, based on their ability to address different frequencies, accept better antennas, and increase output power. The Ailunce HD1 isn’t just a good walkie talkie, it’s one of the best walkie […]

Making a Plywood Kayak

plywood kayak plans

The Jupiter Point series of kayak designs are intended as easy-to-build, fun-to-paddle, versatile collection of kayaks. With a simple 3-panel hull and unique 3-panel deck, the boats are quick to assemble, have a lot of character and perform very well. Plans are currently available for Ganymede a 13′ recreational kayak that uses 3 sheets of […]

Single Kayak or Canoe Trailer

single kayak trailer

If lifting up your canoe or kayak onto the roof of your vehicle is unappealing or impossible, consider hitching this trailer for easy transportation. Manufactured from lightweight, extruded aluminum, it can hold canoes or kayaks up to 17 feet long and comes with adjustable strap points to easily tie down the hull. Padding and front […]

Suitcase Kayak: the best kayak for travel

The most common suitcase kayak is Folding Kayak. The origami-style folding Folding Kayak are made from a single sheet of hard, corrugated plastic (polypropylene, to be exact). They come folded up in a backpack and are pretty easily assembled into 12-16 ft long, seafaring vessels. Traveling with an Folding Kayak is pretty straightforward. If you’re […]

Best Weather Two Way Radios In 2022

Weather Two Way Radios

NOAA Weather Radio All Hazards (NWR) is a nationwide network of radio stations broadcasting continuous weather information directly from the nearest National Weather Service office. NWR broadcasts official Weather Service warnings, watches, forecasts and other hazard information 24 hours a day, 7 days a week. Working with the Federal Communication Commission’s (FCC) Emergency Alert System […]

What Is Digital mobile radio (DMR) ?

Digital mobile radio or DMR uses digital signal processing instead of traditional analog signals. A few digital mobile radios are capable of both digital and analog broadcasts and reception. A number of digital mobile radios have built-in GPS but that is not a requirement. Many European Union DMR products achieve a 6.25 kHz bandwidth, though […]

Understanding Radio Frequency communication

The range of frequencies used in radio frequency communication is called radio spectrum and includes frequencies between 3 kHz to 300 GHz. High frequencies like microwaves ranging from 300 MHz to 300 GHz have line of sight limitations in the radio spectrum. Radio frequencies in lower ranges with higher wavelengths do not have a line […]