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12.5 NXDN

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ab3ai

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Nov 22, 2004
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All,

I could find anthing on this topic so if it was diccussed before, please point me in the right direction.
I've seen documentation that in 12.5 NXDN you could use Voice/ Voice Data/ Voice or Data/ Data. It has been vague at best. What does this mean? Can you have one channel programmed to have two conversations going at the same time using FDMA?
Thanks!!
 

mmckenna

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No, you can't have two voice talk paths on 12.5 NXDN, only one.

12.5KHz NXDN (AKA NXDN Narrow) uses a 9.6KB data rate, where 6.25KHz NXDN (AKA NXDN Very Narrow) uses a 4.8KB data rate.

Voice traffic is just that, digital voice traffic on the channel.
Voice/Data can combine voice traffic with some slow speed data. That slow speed data can be radio ID/name, GPS data, etc.
Data would be just data.
 

ab3ai

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Nov 22, 2004
Messages
120
Thanks for the clarification.

What would be the benifit to using 12.5, more data throughput?
 
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