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  • Kaip veikia radijo dažnis?

    Radio frequency waves (RF) are generated when an alternating current goes through a conductive material. Waves are characterized by their frequency and length. Frequency is measured in hertz (or cycles per second) and wavelength is

    Paskelbta:09-23 Rodyti:3
  • Kas yra harmonika?

    A harmonic is any member of the harmonic series. The term is employed in various disciplines, including music, physics, acoustics, electronic power transmission, radio technology, and other fields. It is typically applied to repe

    Paskelbta:09-23 Rodyti:7
  • Kas yra išankstinis akcentavimas?

    Typically, prior to some process, such as transmission over cable, or recording to phonograph record or tape, the input frequency range most susceptible to noise is boosted. This is referred to as "pre-emphasis" – before the

    Paskelbta:09-22 Rodyti:4
  • Didelė SWR apsauga siųstuvams ir stiprintuvams

    This system may be used to protect any transceiver and any external amplifier from damage due to high s.w.r. operation. You can reduce replacement costs and increase your rig's operating life. A long with the fun of operating a mo

    Paskelbta:09-22 Rodyti:8
  • Kiek yra XLR tipų?

    Three-pin (XLR3) Three-pin XLR connectors are by far the most common style, and are an industry standard for balanced audio signals. The great majority of professional microphones use the XLR connector. In previous years, they were used

    Paskelbta:09-22 Rodyti:5
  • Kas yra XLR jungtis?

    The XLR connector is a type of electrical connector primarily found on professional audio, video, and stage lighting equipment. The connectors are circular in design and have between three and seven pins. They are most commonly associ

    Paskelbta:09-22 Rodyti:8
  • Antenos stiprinimo ir antenos pluošto skaičiavimas

    Antenna Gain is a parameter which measures the degree of directivity of the antenna’s radiation pattern. A high-gain antenna will preferentially radiate in a particular direction. The gain of an antenna is a passive phenomenon –

    Paskelbta:09-22 Rodyti:5

    Antenna gain is measured in either dBi or dBd. It is important to note that antenna gain is different than amplifier gain. Antennas do not have a power source that allows the antenna to create additional energy to boos

    Paskelbta:09-22 Rodyti:4
  • Tipai Antenos

    Here are three main antenna categories available for wireless LANs: Omnidirectional, Semidirectional and Highly directional. Omnidirectional - Omnidirectional antennas are designed

    Paskelbta:09-22 Rodyti:5
  • Kas yra ONVIF?

    ONVIF („Open Network Video Interface Forum“) yra pasaulinis ir atviras pramonės forumas, kurio tikslas yra palengvinti pasaulinio atviro standarto, skirto fizinių IP pagrįstų saugos produktų sąsajai, kūrimą ir naudojimą. ONVIF c

    Paskelbta:09-21 Rodyti:14
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