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  • Why are most walkie-talkies black?
    Why are most walkie-talkies black? May 25, 2022
    Radio is the first wireless mobile communication equipment used by human beings, as early as the 1930s began to be used. After nearly a century of development, the application of the walkie-talkie has become very common, from specialized fields to ordinary consumption, and from military to civilian use. So, the question arises, no matter how the walkie-talkie looks different, but in terms of color...
  • The longer the antenna, the better?
    The longer the antenna, the better? Jun 14, 2022
    We know that the antenna of the intercom is proportional to the transmission and reception of the walkie-talkie, and the antenna is a device that emits electromagnetic waves into the air. We usually use walkie-talkies in order to send more power into the air, so that when the other party receives the signal, there is still enough power to restore the content of the information. The antenna is an i...
  • Play Tips|What frequency of walkie-talkies is best for outdoor travel?
    Play Tips|What frequency of walkie-talkies is best for outdoor travel? Jun 22, 2022
    In the outdoors, walkie-talkies are in some cases more useful than mobile phones, as they do not require external base station support and can communicate freely with teammates in most harsh environments. In times of disaster, a GPS-enabled walkie-talkie can be used to send SOS signal. The theoretical frequency band of Frs walkie-talkies is in the range of 144-146 and 430-440MHz. In fact, the cent...
  • Can walkie-talkies pass security and be used on plane?
    Can walkie-talkies pass security and be used on plane? Jul 06, 2022
    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 ...
  • Who is the unsung hero of radio?
    Who is the unsung hero of radio? Jul 26, 2022
    Amateur radio operators have a long and storied history across the globe and are often referred to as “ham” radio operators. Defined as a “duly authorized person interested in radioelectric practice with a purely personal aim and without pecuniary interest and differentiated from commercial broadcasting, public safety (such as police or fire), or professional two-way radio services (such as mariti...
  • Play Tips | Can a TV Antenna Be Used for Ham Radio?
    Play Tips | Can a TV Antenna Be Used for Ham Radio? Aug 04, 2022
    Imagine how cool it would be if you could make your own ham radio antenna. After all, externally,there’s not that much of a difference between a ham radio antenna and an old TV antenna, is there? Well, you may be surprised to know that, with a bit of craftiness, you can transform a TV antenna into a functioning ham radio antenna. It just takes a bit of know-how. Cable quickly made TV antennas an o...
  • How far can dual band radios communicate, 30 km?
    How far can dual band radios communicate, 30 km? Aug 18, 2022
    How far can dual band radios communicate, 30 km? This is one of the most common questions asked by newcomers, but they often do not get a satisfactory answer. This is a complex question that requires a number of factors to be considered. Obstacles are a very important factor in communication distance. In the city, two handheld radios may only be able to talk for 1-2 km, whereas in open areas, they...
  • Why do radios need CTCSS?
    Why do radios need CTCSS? Aug 25, 2022
    Radio beginners often ask questions about CTCSS (Continuous Tone Controlled Squelch System) , thinking that they are vague and difficult to grasp. So today we will talk about what CTCSS is. CTCSS is a technology that adds frequencies lower than the audio frequency (67Hz-254.1Hz) to the audio signal and transmits it together. The purpose is to check whether the signal is legal and whether to respon...
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