This issue would only be for contact reports. These reports will place an icon on the map and send a radio message.
Here is the order for reporting :-
[LanesGraph.Node 1.NodeGroup 1]
Type=BCR2_
Name=BCR2
Country=British
Speed=9.000000
StartDate=19390804
EndDate=19451231
ReportPosTime=3606
ReportPosProbability=60
This will happen every 3606 mins at a 60% chance or report.
This ship possition info is saved by meters and not lat/long

It therefore must be converted by the game for the radio message:-
[Log Entry 30]
ClassID=2971D56;sLogRadioMessageEntry
Type=7
Date=19391022
Time=1026
Blob=0
UniqueID=-6912148068249549651
EntryStatus=1
CreatedMissionStatus=false
EntryText=From: Bdu|To: U-36|Contact Reported. Enemy Small Convoy , Long 5° 08' W, Lat 52° 56' N , Course NNE, Speed 14 KTS!
EntryTitle=10:26 Radio Contact Report
Categ=3
MessageDirection=0
So only at this stage is there an issue and the icon is on map to show you where it is.