An Introduction to NXDN

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NXDN – Next Generation Digital Narrowband

Part 1 of a 2 Part NXDN Series
The basics of NXDN, including the Common Air Interface and conventional NXDN.

What you need to know

  • NXDN was created in 2003 with a joint venture of Kenwood and Icom.   The protocol was announced at IWCE in 2005 and the first units arrived in 2006.  It wasn't until 2017 that NXDN was published by the ITU-R as an international digital land mobile system.

    NXDN was created to satisfy the 2005 FCC Narrowbanding mandate.  Originally created for business users, NXDN is used by public safety and even the military.

    Overseeing NXDN development and standards is the NXDN Forum.  A 30 member community including JVC Kenwood, Icom, Anritsu, The Boeing Company, and Zetron.

    NXDN Comes in 3 flavors

    • NXDN Standard (As defined by the CAI)
    • Kenwood's NEXEDGE
    • Icom's IDAS

    NXDN operates using FDMA over 12.5kHz or 6.25kHz wide bandwidth.

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Podcast Transcription:

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