From The RadioReference Wiki
The NXDN (Next Generation Digital Narrowband) common air interface protocol, which was developed jointly by ICOM and Kenwood, uses Frequency Division Multiple Access (FDMA), employing a 4-level FSK modulation scheme. These companies and others together form the NXDN Forum.
Related Wiki Pages
Who are the Users?
- Click on the NDXN category at the bottom of this page, and select the various regions to see if there are listings in this wiki. More information might be found in the trunking tab of your state in the RR Database; however, the RRDB currently does not fully support NXDN listings.
- You can use the Digital Frequency Search webtool to search by county for frequencies authorized to use NXDN (information extracted from the FCC database)
- The Digital Frequency Quick Import webtool can also be used to import frequencies into several modern scanners.
Can it be Decoded?
Apart from using an actual Kenwood or Icom radio, the following methods are possible;
- The Whistler TRX-1 and TRX-2 with the NXDN upgrade can copy this mode. However, they can't trunk NXDN systems. Program trunked systems as conventional objects. See the How to improve NXDN Scanning thread and the NXDN Update Now Available Thread
- The AOR DV-1 copies NEXEDGE (no trunking, however)
- Use either Digital Speech Decoder (software package) or DSDPlus software, along with a scanner which, in many cases, will require a Discriminator Tap. You can also use a SDR with these applications without the need for modifications.