Quote:
Originally Posted by gap
Hi Max,
have you seen this one already? (click to enlarge)

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http://www.heiszwolf.com/subs/plans/planstyp9b.gif
Hello,
This plan is great, but i would like to know what do mean ...
- Mo ?
- Tr ?
- To ?
- TB ?
- RB ?
- K ?
- T ?
- R ?
- U ?
... assuming that :
- F = radio station
- O = hydrophone station
Thanks in advance !