Recently we upgrade the firmware on the Ailunce HD1 from v1.5.4 to v1.5.8 in order the take advantage of the new increase in DMR Contact ID storage. The HD1 can now store 200,000 DMR IDs. We also go through the process of doing the Contact ID database update.
In general, radio waves travel in straight lines. They can go around and through things but this can drastically affect the strength and clarity of the signal. This causes problems when you’re operating a radio in a built-up, hilly or mountainous area. Sometimes, even on flatter terrain, the sheer distance between the transmitting radio and […]
Retevis RT97 is a new analog repeater released in 2019. It is a small and compact equipment, You can see it’s appearance is a metal case, so it is solid and dust-proof.RT97 Is a customizable repeater, it can be customized within the range UHF: 400-470MHz or VHF: 136-174MHz.So if you need any frequency within UHF: 400-470MHz or VHF: 136-174MHz, it will be ok.
Usually The Repeater is used to extend the radio’s communication range. Our Retevis RT97 is a basic Repeater, very easy to use and carry. Not like the traditional repeater. Traditional repeater Usually when we talk about the repeater, we will think of the traditional repeater like: 1, High Antenna 2, heavy Machine 3, High […]
What is the ShortWave Radio? Retevis released a Shortwave radio HS1, the HF SDR Ham Transceiver. But what is the Shortwave Radio? From the wikipedia: Shortwave radio is radio transmission using shortwave radio frequencies. There is no official definition of the band, but the range always includes all of the high frequency band (HF), and generally extends from 1.7–30 MHz (176.3–10.0 m); […]
Walkie talkies can be use in various occasions,such as schools,church,and so on.Many customers ask us: I want use a walkie talkie,what model do you recommend? Generally speaking,we will recommend some suitable radios accourding to use environment.So what do you consider before purchase? Let’s dscussion it together. Communication distance it is a ordinary requirement. if you […]
Sometimes customers ask us:I want walkie talkies to communicate with others,I like RT21 and RT5,which radio do you recommend?They are all analog radios,what the difference of these two radios?Let detailed discussion it. Output power The power of RT21 is 2.5W,the usual transmission distance of the peer is 0.5–2.5miles,RT5 is 5w radio,so in the communication distance,RT5 […]