First of all,make it clear that we can carry walkie-talkies on a plane. However, when we go through airport security, we need to cooperate with the security officer by switching off the walkie-talkie and removing the battery from the radio and carrying it separately from the main unit. It is also important to note that the walkie-talkie cannot be switched on and used on the aircraft. The aviation ...
Millions of people around the world participate in amateur radio contests. Contests can be exclusive to a certain region or held at a global scale. An amateur radio contest (aka radiosport or contesting) is a competitive activity among radio operators done as a group or individually. The main goal is to communicate with as many stations as possible in a given time. As easy as it sounds, there are ...
DMR radio is one of the many types of walkie-talkies that have been recognized and favored by many users in recent years. What is the difference between DMR radio and analog walkie-talkie? Let's talk about this topic this time. What is DMR? DMR stands for Digital Mobile Radio and is an international standard that has been defined for two-way radios. The European Telecommunications Standards Instit...
In fact, the attenuation of rain on EMW(electromagnetic waves) below 10 GHz is relatively slight, but for EMW above 10 GHz, the impact of rain attenuation is very obvious. When EMW passes through the rainfall area, the rain not only absorbs the energy of the radio wave, but also scatters it. This absorption and scattering together form electromagnetic wave attenuation. Scattering can also ca...
With the widespread use of walkie-talkies, the issue of frequency compatibility between different brands of radios has gradually received attention. Frequency compatibility refers to the ability of two or more walkie-talkies to communicate by setting the same frequency and parameters. Different brands of walkie-talkies can achieve frequency compatibility through manual setting of frequency, automa...
In an era dominated by instant messaging and social media, the art and science of ham radio and communication radios persist as a crucial and compelling facet of technology that weaves together recreation, community assistance, and emergency preparedness. Despite the ubiquity of modern communication tools, these traditional forms of communication offer unique benefits and opportunities that are ir...
I miss the crackle of the marine radio in the corner of the cabin at the lake. It used to be a veritable party line for communication in the north country where we like to fish and hunt and play. It was the only way for people to chat from cabin to cabin, or boat to boat, or boat to cabin. Of course, as it has across the globe, cellphone service came to our favorite place eight or nine years ago a...
Ham radio enthusiasts from throughout the region were at the Polk County Fairgrounds on Saturday, drawn by the lure of the semi-annual swap meet. For some, ham radio is a hobby. Hams tends to use two kinds of gear: HF and VHF/UHF. HF gear is made to talk over long distances, while VHF/UHF radio is for talking around town. But for Kjell Lindgren, it was an out-of-this-world experience. Lindgren is ...