airMAX - ACK Distances for airMAX AC

What is ACK and why does distance matter?

ACK is the "ACKnowledgement" sent by the receiving radio to the sending radio. This lets the sending radio know that the recipient is ready for the next block of data. Distance is determined by how long it takes a packet to move from one radio to another.

In Point-to-Point (PTP) mode, airMAX AC devices will automatically switch from hardware ACK to software ACK (NOACK), with no configuration required. In Point-to-Multipoint (PtMP) mode however, NOACK isn't supported as such, and there will be distance limitations.

NOTE:As of v8.3 we have added Fixed Frame support. Please see this GPS Sync FAQ article for more details on FF distance limitations.

PTMP Mode Distance Limitations


Distance Limit

20/40/80 MHz 22.5 km (14 mi)
30/60 MHz 15 km (9.3 mi)
50 MHz 18 km (11.2 mi)
10 MHz 37.5 km (23.3 mi) 

Related Articles

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airMAX - Long Range PtP Link Mode

airMAX - GPS Sync FAQ

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