smt two way radio

What walkie-talkie is suitable for the construction site? Dec 07, 2022
Walkie-talkies are widely used in public utilities, emergency industries, transportation and other fields, and construction sites are also one of the places where walkie-talkies are most frequently used. So what kind of walkie-talkie should you choose on the construction site? Today let’s talk about this topic. For working environments with a lot of dust, it is required that the walkie-talkie shou...
- walkie-talkie
- DMR radio
- arge-capacity battery
How should the voice of walkie-talkie become very small to solve? Dec 15, 2022
First of all, we should analyze the reason why the radio sound is small, as long as we find the reason, we can find a solution. In general, the low sound may be due to the dust entering into the loudspeaker or the problem of the connecting wire of the loudspeaker after being used for too long, which is the main reason for the low sound of the walkie-talkie. So what are the faults that affect the s...
- walkie-talkie
- sound of the radio
- original batteries
What is the " kill" function of the walkie-talkie used for? Dec 28, 2022
Anyone who is familiar with walkie-talkie knows that it have a function - kill, but for green hands, they may not understand it very well. Today we will talk about the powerful and practical function. The "kill" function of radio can make the radio shut down or prohibit transmission by remote control. The ability to turn off the launch function individually is sometimes referred to as "stun". Afte...
- walkie-talkie
- powerful and practical
- "kill" function of radio
How to distinguish single call, group call and all call of DMR? Jan 05, 2023
The DMR(Digital Mobile Radio) can set single call, group call and all call directly through contacts. So what is the difference between them? 1. Single call Literally we can understand that this is a one-to-one call. Each of us will register a DMR ID through the call sign, which is the same as our mobile phone number and is not repeated. If you want to call the other party, you can directly e...
- Digital Mobile Radio
- radio amateurs
- walkie-talkie
Do you know the three scanning methods of walkie-talkie? Jan 11, 2023
Scan is a very common and useful feature for amateur radio operators. When they are not sure which frequencies have a signal, they can turn on the scan function. To give an easy-to-understand example, suppose we have built 10 channels, but we are not sure which channel has a signal. At this time, if we turn on the scan function, the walkie-talkie will wait on these 10 channels. If there is no sign...
- Amateur radio operators
- scan function
- walkie-talkie
Can I carry a walkie-talkie to use abroad? Feb 02, 2023
In addition to mobile phones, hams may also want to take a beloved two way radio with them when they travel. So, if it is an outbound travel, can they carry and use the radio? The answer is clear. If there is no relevant permission from the destination country, it is not allowed to use radio equipment casually. For specific usage issues, please refer to the laws and regulations of each country. Fo...
- two way radio
- POC radio
- handheld radio
Will rainy days affect radio communications? Feb 16, 2023
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...
- EMW
- VHF/UHF band
- amateur radio
How much does the gain antenna improve the signal of the walkie-talkie? Feb 23, 2023
As we all know, walkie-talkies can make the signal stronger by adding gain antenna. Today we continue to talk about the topic of gain antennas. First of all, we need to understand the function of the gain antenna. Do you know how satellites receive communication signals? Logically speaking, satellites are far away from the earth. The higher the frequency, the greater the loss. So why do satellite ...
- walkie-talkies
- gain antenna
- handheld radio

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