Fog Signal Distance Finding for Brenton Reef Lightship (1954-1961)

For 2 minutes For 1 minute
RBN Off 52
<––––Code––––>
1
 
1
 
1
 
5
 
  FS 1 blast ev 30s
(6sbl)
24 6
 
23
 
 
1
 
1
 
5
 
 
 Shows of dash of RBN or
 blast of fog signal.
Figures show seconds.
RBN Code: