send contact report???

andym · 09-16-08, 11:58 AM

Quote:

Originally Posted by GoldenRivet

sending radio messages of any kind in SH3 increases the chances that aircraft or nearby destroyers will close your position.

what the exact % increase in those odds might be is beyond me... but it does increase.

Ooooer,i totally forgot about that!!!!That will explain things last night!

Kielhauler1961 · 09-16-08, 01:07 PM

It's called 'High-Frequency Direction Finding' (Huff-Duff) and was used from shore stations to begin with, then later, when the sets were small enough, from surface ships. By 1943 it was common for at least two convoy escorts, plus the rescue ship at the rear, to carry this device.

It didn't read or decipher the messages, it just pin-pointed the source of transmission. By using simple triangulation it could cross-reference the point of a 'talkative' U-Boat and then friendly forces would be homed onto it. The Germans never understood this and abused the radio right up to the end of the war.

Google 'huff-duff' and read the wiki.

Remember the old war sayings: 'Careless talk costs lives' (UK) and 'Loose lips sink ships' (USA). In this case, they are your lives.

Jimbuna · 09-17-08, 12:33 PM

http://www.uboat.net/allies/technical/hfdf.htm

http://www.jacksjoint.com/huffduff.htm

09-17-08, 12:33 PM	#3
Jimbuna Chief of the Boat Join Date: Feb 2006 Location: 250 metres below the surface Posts: 190,770 Downloads: 63 Uploads: 13	http://www.uboat.net/allies/technical/hfdf.htm http://www.jacksjoint.com/huffduff.htm __________________ Wise men speak because they have something to say; Fools because they have to say something. Oh my God, not again!!

09-16-08, 01:07 PM	#2
Kielhauler1961 中国水兵 Join Date: Jul 2008 Location: East of the Firth of Forth Posts: 273 Downloads: 1 Uploads: 0	It's called 'High-Frequency Direction Finding' (Huff-Duff) and was used from shore stations to begin with, then later, when the sets were small enough, from surface ships. By 1943 it was common for at least two convoy escorts, plus the rescue ship at the rear, to carry this device. It didn't read or decipher the messages, it just pin-pointed the source of transmission. By using simple triangulation it could cross-reference the point of a 'talkative' U-Boat and then friendly forces would be homed onto it. The Germans never understood this and abused the radio right up to the end of the war. Google 'huff-duff' and read the wiki. Remember the old war sayings: 'Careless talk costs lives' (UK) and 'Loose lips sink ships' (USA). In this case, they are your lives.