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  • Are you searching for the best cell phone signal booster for home & office?

    Are you searching for the best cell phone signal booster for home & office? A mobile signal booster takes existing weak signal, amplifies it to boost cell phone signal and improve weak signals in home or office areas. Kingtone more than 20 models popular cell phone signal booster for home &a...
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  • Instructions for storage and use of lithium batteries for walkie-talkies and repeaters

    A. Lithium battery storage instructions 1. Lithium-ion batteries should be stored in a relaxed, dry, ventilated environment, away from fires and high temperatures. Battery storage temperature must be in the range of-10 °C ~ 45 °C, 65 ± 20% Rh. 2. Storage voltage and power: voltage is ~ (standard ...
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  • Better Cell Phone Coverage for Your Building by KingTone High Performance Cellular Mobile Phone Signal Booster

    Why need cell signal booster for your building? Buildings construction materials used such as cement, brick, and steel, often block a cell signal transmitted from a cell tower, limiting or even completely barring the signal from entering the building. A cell signal is frequently blocked by physic...
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  • How many ohms is the resistance value of Category 5E (cat 5e) cable?

    How many ohms is the resistance value of Category 5E (cat 5e) cable?

    Depending on the material of the network cable, the resistance value is different. 1.  Copper-clad steel network cable: resistance of 100 meters is about 75-100 ohms. This cable is also the cheapest cable on the market, and the effect of communication is not very good. 2. Copper-clad aluminum net...
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  • Electrically Tuning Antenna

    Electrically Tuning Antenna

    Some explanation of Nouns:   RET: Remote Electrical Tiling RCU: Remote Control Unit CCU: Central Control Unit   Mechanical and electrically tuning antennas 1.1 Mechanical downtilt refers to the direct adjustment of the physical tilt angle of the antenna to change the beam coverage. Electrical d...
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  • The difference between digital walkie-talkie and analog walkie-talkie

    The difference between digital walkie-talkie and analog walkie-talkie

    As we all know, the walkie-talkie is the key device in the wireless intercom system. The walkie-talkie acts as the link of voice transmission in a wireless communication system. The digital walkie-talkie can be divided into frequency division multiple access(FDMA) and time division multiple acces...
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  • A quick overview of the global 5G spectrum

    A quick overview of the global 5G spectrum

    A quick overview of the global 5G spectrum   For now, the latest progress, price, and distribution of the world’s 5G spectrum following:(any inaccurate place, please correct me) 1.China First, let’s look at the 5G spectrum allocation of the four major domestic Operators! China Mobile 5G freq...
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  • With 5G, do we still need private networks?

    With 5G, do we still need private networks?

    In 2020, the 5G network construction entered the fast lane, the public communication network(hereinafter referred to as the public network) is developing rapidly with the unprecedented situation. Recently, some media reported that compared with the public networks, the private communication netwo...
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  • What can we do when repeater self-excitation?

    What can we do when repeater self-excitation?

    What can we do when repeater self-excitation? What is the mobile signal repeater self-excitation? Self-excitation means that the signal amplified by the repeater enters the receiving end for the secondary amplification, resulting in power amplifier work in a saturated state. The repeater self-exc...
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  • How to explain and calculate dB, dBm, dBw…what is the difference between them?

    How to explain and calculate dB, dBm, dBw…what is the difference between them?

    How to explain and calculate dB, dBm, dBw…what is the difference between them?   dB should be the most basic concept in wireless communication. we often say “transmission loss is xx dB,” “transmission power is xx dBm,” “antenna gain is xx dBi” … Sometimes, this dB X may be confused and even...
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  • Huawei Harmony OS 2.0: Here is all you need to know

    Huawei Harmony OS 2.0: Here is all you need to know

    What is Huawei Harmony OS 2.0 trying to do? I think the point is, what is the IoT (Internet of Things) operating system? As for the topic itself, it can be said that most of the online answers are misunderstood. For example, most reports refer to the embedded system which runs on a device and Har...
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  • What is the difference between 5G and 4G?

    What is the difference between 5G and 4G?

    What is the difference between 5G and 4G?   Today’s story begins with a formula. It’s a simple but magical formula. It is simple because it only has three letters. And it’s amazing because it is a formula that contains the mystery of communication technology. The formula is:   Allow me to ex...
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