= R =
rusty wire n.
[Amateur Packet Radio] Any very noisy network
medium, in which the packets are subject to frequent corruption.
Most prevalent in reference to wireless links subject to all the
vagaries of RF noise and marginal propagation conditions. "Yes,
but how good is your whizbang new protocol on really rusty
--The Jargon File version 4.3.1, ed. ESR, autonoded by rescdsk.