Comments by "" (@BobSmith-dk8nw) on "USS Frost (DE-144) - Guide 361" video.

  1. Yeah. My understanding is that the HFDF Hight Frequency Direction Finding (or Huff Duff) would detect a radio transmission from a U-Boat. This would give them a bearing from the ship picking it up. This Bearing could be compared to the bearings of other HFDF units which picked up that transmission - and where the bearing lines crossed - THAT - is where the U-Boat was. Using their Radios had been a prime factor in the coordination of U-Boat tactics and the reporting of Convoy Sightings. HFDF turned that against them - and a Hunter Killer Group could be dispatched to the location of the U-Boat HFDF detected. .
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