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 2M误码仪 IFR 2841 数字通讯分析仪
  • 2M误码仪 IFR 2841 数字通讯分析仪
  • 2M误码仪 IFR 2841 数字通讯分析仪

    参考价格: ¥0.00
    品  牌:IFR
    产品型号:IFR 2841
    所在地区:北京
    上架时间:2018年09月29日
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    2M误码仪 IFR 2841 数字通讯分析仪

    2M误码仪 IFR 2841 数字通讯分析仪 侧面板

    厂家: IFR

    • 直方图显示
    • 语音监听
    • 语音通道测量,发射频率和幅度可调,分辨力 1Hz 0.1dB
    • Nx64kbit/s通道测量
    • Bridging / Montior / Terminated
    • G.821 / G.826 / M.2100
    • 指示灯: LINE,AIS,FRAME,CRC MF,CAS MF,DISTANT,DMF,PATTREN,ERROR RATE,ERRORS,BATTERY

    语音通道测量 - AUDIO CHANNEL MEASUREMENTS

    • Set TX/RX to PCM Framed Single Channel(item 2, pages 11 & 21).
      Select CAS 16 and CRC4 as appropriate.
    • Set TX/RX test pattern to Audio(item 3, pages 12 & 22).
    • Set TX/RX audio to ON(pages 123 & 223). TX frequency and level can be adjusted(1Hz and 0.1dB resolution). RX measures frequency, RMS level and peak code. Measure frequency response, linearity, idle channel noise.
    • If As TX or As RX used(pages 11 & 21) TX/RX channels can be incremented/decremented together using CHAN/TS keys.

    语音监听 - AUDIO CHANNEL MONITORING

    • Turn TX off.
    • Set RX to PCM Framed Single Channel(item 2, page 21).
      Select CAS 16 and CRC4 as appropriate.
    • Set RX input to monitor or bridging(page 25). Monitor point attenuation can be adjusted from 15 to 30 dB,using item 6, NEXT or LAST and ENTER softkeys.
    • Switch on loudspeaker(SHIFT S). Set volume using VOL keys.
    • Increment/decrement channel using CHAN/TS keys.

    Nx64kbit/s CHANNEL MEASUREMENTS

    • Set TX/RX to PCM Framed Nx64kbit/s (item 3, pages 11 & 21).
      Select CAS 16 and CRC4 as appropriate.
    • Select Set Up Nx64kbit/s (item 8 & 7, pages 11 & 21 respectively). Highlight channels required for value of N. These can be contigous or non-contigous.
    • Or set up RX after TX by selecting As TX (item 8, page 21).
    • Set up TX/RX test pattern (pages 12 & 22).
    • Select major error type as pattern (page 36).
    • Start test manually. Timed start/stop available on page 36.
    • Review results on pages 31 & 32. Load on graph if required using pages 33 & 34.
    * Charge for 30Hrs before use *
    • Main Menu Option - Shift M
    • Set Clock : Page 47 - press 0 to enter value
    • Speaker - Shift S
    • Buzzer - Shift B
    • Backlight - Shift L
    • Keyboard lock - Shift K

    NOTE. Fitted with Reset switch

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