;; Matches ham radio call signs.
;; Help from: Mat Maessen N2NJZ <maessm@rpi.edu>, Mark Feit
;; <mark@era.com>, Michael Covington <mcovingt@ai.uga.edu>.
;; Matches ham radio call signs.
;; Help from: Mat Maessen N2NJZ <maessm@rpi.edu>, Mark Feit
;; <mark@era.com>, Michael Covington <mcovingt@ai.uga.edu>.