buy Repeater

Dieses Thema im Forum "VR Brillen" wurde erstellt von xiao3xiao, 10. Mai 2019.

  1. xiao3xiao

    xiao3xiao Enthusiast

    10. Mai 2019
    Mini UHF duplexer repeater 10mhz spacing for walkie talkie BJ-851


    1.Specification of repeater

    General
    Frequency Range:400-490 MHZ ( Frequency spacing :10MHz)
    Frequency Spacing10MHZ
    Duplex Band Width1MHZ
    Modulation TypeFM 16F3
    Operating Voltage12-14V
    Currentstandby current : 0.3A Rx current : 0.8A Tx current :3.0A
    Frequency Stability≥2.5 PPM
    Channel Spacing25KHZ
    Weight Approx 2kg

    2.Specification of Duplexer
    Frequency Range (MHZ)RX:453.5---456.5MHZ TX:463.5---466.5MHZ
    Frequency spacing10MHZ
    Max Output Power (W)10W
    Receiving End Insertion loss (dB)≤2dB
    Transmitting End Insertion loss (dB)<1.5dB
    Transmitting-Receiving End Isolation (dB) ≥65dB
    Max VSWR1.5
    Operating Temperature Range-30-----+60°C
    Frequency StabilityApprox 2.5ppm/°C
    Matched Impedance50Ω
    Receiver
    Simplex Sensitivity≥0.3uv(12dB SINAD)
    Duplex Sensitivity<3dB
    Squelch Sensitivity≥0.2uv
    Selectivity-70dB
    Spurious Radiation-75dB
    Intermodulation Rejection-75dB
    Residual Noise-45dB
    DEMP FO6±3dB
    Audio Output Power4.0W
    Audio Distortion<5%
    Working Modereceiving mode
    Transmitter
    Output Power5-10W
    Spurious Radiation≤80dB
    Residual Modulation-45dB
    Audio Distortion<5%
    Max Modulation5KHZ
    Pre-emphasis Frequencies6±3dB
    Working ModeTransmitting Mode
    CPU Controller
    Automatic Repeater Setting
    MIC and PTT control
    PC Programming
    CTCSS and DCS

    Note:1.the repeater have MIC ,but it not standard accessories
    2.the repeater just can do 10mhz ,you should choose 10mhz from 400-490mhz ,like 410-420mhz,422-432mhz,445-455mhz and so on.
    3.the repeater software just can change channels frequency and CTCSS .but the factory should be in factory setting . if the repeater is finished ,you will can not change the frequency(like 410-420mhz,422-432mhz).
    4.the repeater need antenna .the antenna need to put in the highest place ,the signal will be good.
    5.the repeater need a cable to contact the antenna .the cable can not too long ,the cable will reduce the repeater power.
    cable need -9 (is good ).





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    buy Repeater
    website:http://www.bjtwowayradios.com/repeater/