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Admin

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  2. Posted

    You tried to make such an antenna...????

    Mavic Air Long Range Antenna Helical

    3 cylindrical spirals and 3 hemispherical spirals ...? /

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    ,,,the power supply of the helix antenna is not in the center, it is on the perimeter of the helix>>>

    ,,,something like that...!!!

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  5. Posted

    A directional antenna for receiving Wi-Fi signals over long distances, with a gain of 14.2 dB. Also known as a Wi-Fi gun. It has F-connectors at the inputs. This antenna model is designed to receive Wi-Fi signals from routers with an average frequency of 2440 MHz. The development and modification of this model was made possible by the efforts of Igor Panchenko, an engineer from Voronezh. By using composite materials to make the antenna instead of sheet metal, it was possible to achieve more stable operation of this model and make the product much lighter. The composite material consists of two layers of thin, pre-painted aluminum sheet, with polypropylene sandwiched between them. As a result, the antenna uses 24 disks instead of 12. It includes a paired reflector, an active disk, and directors.

    Wi-Fi antenna "Konus" with gain up to 17 dBi (maximum 16.8 dBi). The antenna is made of composite materials, the output is an F-connector (if you wish, you can install two connectors-free of charge).All four types of SMA connectors can be installed (SMA-male, RP-SMA-male, SMA-Female, and RP-SMA-Female).Wi-Fi antennas are usually used to receive or transmit signals from home routers or from free Wi-Fi access points of operators installed in localities. To receive a signal, you can use both a Wi-Fi adapter and almost any Wi-Fi router configured in repeater mode. The router is even more convenient, you can immediately receive and distribute a Wi-Fi signal.

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    Material Dielectric Constant - Polypropylene -2,1,,,,,2,4

    dielectric constant.jpg

    1 person likes this

  23. Posted

    ,,,the length of the coaxial cable must be a multiple of a quarter wavelength multiplied by the shortening factor of the cable(also NVP from English Nominal Velocity of Propagation )

    Cable The shortening  factor VKF (also NVP from English Nominal Velocity of Propagation )

    Open band line=95-99%

    Belden  9085 (ribbon cable)=80%

    RG-8X Belden 9258 (coaxial cable)=82%

    RG-213 CXP213 (coaxial cable)=66%

    1 person likes this