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nxdn

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Table of Contents

NXDN

Overview

NXDN is an open standard protocol developed jointly by Kenwood and Icom. NEXEDGE is the Kenwood branding version and IDAS is the icon branding version. The radios can comminicate across NXDN and IDAS as the protocol is the same.

NXDN uses Frequency-Division, Multiple-Access (FDMA) technology in which different communication streams are separated by frequency and run simultaneously.

NXDN is a digital mode with an original target user base for business and industry. Public safety has also adopted NXDN in some areas. The channels can be 12.5 kHz or 6.25 kHz. The mode can transmit voice or data and is not compatible with other digital modes such as P-25, DMR, TETRA, D-Star, or System Fusion. However, the equipment can support mixed-mode analog FM use. All digital communications must go through a repeater. Analog simplex is possible radio to radio.

What is RAN?

RAN (Random Access Number) is similar to a CTCSS encode for analog systems. It unlocks the squelch on the repeater while you transmit to permit access to the repeater. There are 63 codes.

Encryption

The NXDN protocol does include encryption. Refer to the rules of the Amateur Radio Service for the legality of using such technology. In the US, if the intent is to obscure communications, it is expressly prohibited.

nxdn.1515606132.txt.gz · Last modified: 2021/02/27 14:08 (external edit)