Digipeater

A digital repeater: a station that retransmits AX.25 frames whose path names it, or a generic alias such as WIDE2-2, marking that hop as used so the frame doesn’t bounce back and forth. APRS relies on them to extend a station’s reach, and the WIDEn-N scheme limits how far a packet spreads.

References

• The New n-N Paradigm

• Preemptive digipeating

• APRS-Digipeater-Algorithm.pdf in the APRS Documentation Project

• Digipeater on Wikipedia