; Obstruction File Format version 1.1
;
; lines starting with ';' are ignored
; there's one record per line
; there are five fields in each record
; fields are separated by either '!' or TAB character
;
; 1 TYPE = code for the type of obstruction
;               B building
;               T tower - man-made tower
;               P peak - natural peak
;               M man-made
;               N natural (ridge line etc)
;               X don't know
;        note:  future software might render types differently
; 2 BASE = altitude of the the obstruction base (ft msl)
; 3 HEIGHT = height of the obstruction (ft)
; 4 LATITUDE
; 5 LONGITUDE
;
; note: if you're depicting a ridge line, mountain system or
; a building that spans quite a distance - then you can suffix
; the TYPE field with the same number to show they're related
; for example, all records of type N1 will be assumed to be
; related and will be drawn in sequence.
; future software might render it more effectively
;
; T1!200!600!40:59.85!-74:18.87
; T1!200!640!40:59.88!-74:19.87
; T1!200!650!40:59.95!-74:20.87
;
; also, if you want to attach a name to the obstruction, add a 
; SPACE after the type field and then enter the name.
;
; T Space Needle!200!600!40:59.85!-74:18.87
;
;
; examples of '!' and TAB delimited records
;
T!200!600!40:59.85!-74:18.87
T	200	1000	40:58.85	-74:19.87