YW-4500
無線天線
YW-4500
無線天線YW-4500專為UHF頻段無線系統設計。電纜損耗可以透過內建射頻訊號增強器進行補償。 YW-4500 採用偶極天線，設計安裝在門內。使用阻抗為 75 Ω 的同軸電纜。
- 用於牆壁或天花板安裝的全向偶極天線
- 透過整合式射頻放大器，可補償長電纜傳輸所造成的損耗
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The remote dipole antenna shall be suitable for use in the UHF frequency range of 550 - 932 MHz. The antenna gain shall be greater than 8 dB with a V. S. W. R. of less than 3. The output impedance shall be 75 ohm with an operating distance of 35 m (115 ft.) maximum using RG-6U cable or 50 m (164 ft.) maximum using RG-11U cable. The antenna power requirement shall be 7- 12 VDC with current consumption of less than 24 mA supplied from the wireless receiver or antenna distributor. The unit shall have a mounting hole pitch of 3.29" (83.5 mm). The operating temperature shall be -10° C to +50° C (+14° F to +122° F). Unit construction shall be AES resin, off-white with dimensions of 105 x 140 x 126 mm (4.13” x 5.51” x 4.96”) and weight of 300 g (0.66 lbs.).
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