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TEST AND MEASUREMENT
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Digital Modulation Signal Generator

MG3681A
This product has been discontinued Replacement Model(s) : MG3700A
Downloads
Overview
The MG3681A is a high performance digital modulation signal generator that incorporates a broadband vector modulator. It has a frequency range of 250 kHz to 3000 MHz, covering the frequency bands of all major mobile communications systems. Various modulated signal waveforms can be generated with the optional expansion units and associated software.
  • Broadband vector modulation (DC to 30 MHz)
  • Excellent adjacent channel power characteristics (-68dBc/Ch at 5MHZ and -75dBc/Ch at 10MHz)
  • AWGN source (option)
  • Power control function (Transmit Power control)
  • Generation of multiple waveforms up to 512 channels (option)
  • Supports chip rates up to 16.5 Mcps
  • Superior AM and FM analog modulation functions
  • Support for various digital modulation types including 3GPP, GSM, cdmaOne (option)

  • Frequency Range

    • 250 kHz to 3 GHz

  • Output level

    • -143 to +13 dBm

  • Resolution

    • 0.01 Hz output

    • 0.01 dB level

  • Signal Purity

    • -145 dBc/Hz at 5 MHz offset

  • Seven Expansion Slots

Options

Communication system

Applicable software

Expansion units

PDC

PDC Software

TDMA Modulation Unit

GSM

GSM Device Test Software

3GPP (FDD)

W-CDMA Software

CDMA Modulation Unit

cdmaOne

IS-95 Device Test Software

CDMA2000 1X

Device Test Signal Generation Software

Universal Modulation Unit

CDMA2000 1xEV-DO

GSM/EDGE

PDC/NADC/PHS

CDMA2000 1xEV-DO

CDMA2000 1xEV-DO Signal Generation Software

PDC packet

PDC Packet Software

PHS

MX368035A PHS Signal Generation Software

 

Reference oscillator (Option 1)

Aging rate: 5 x 10–9/day

Reference oscillator(Option 2)

Aging rate: 5 x 10–10/day

I/Q Output

Level and DC offset setting, differential output

AF synthesizer

0.01 Hz to 400 kHz, resolution: 0.01 Hz

Increase RF Output

 8 dB gain
Related Links
Applications
  • Evaluation of W-CDMA/HSDPA systems (Uplink and Downlink)
    • Multiplex up to 12 channels
    • Test Model Patterns included for rapid testing
    • Internally generate various channel formats for base station emulation
    • Use HSDPA IQproducer™ to generate standard compliant signals and error cases
  • AWGN
    • Add AWGN to any signal
    • Satisfy requirements for dynamic range and interference testing specified by 3GPP and 3GPP2
  • Evaluation of CDMA2000 1xEV-DO systems
    • Create and edit waveforms using IQproducer™ for EV-DO
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