DF antenna raised or lowered?

[LGN1]

Hi,

thanks to Anvart it is possible to have the DF antenna in SHIII raised
and rotating. Unfortunately it is only possible to have it either
raised or lowered, i.e., one has to choose one way or the other.

In most pictures of german submarines (I have seen) the DF antenna is
lowered. Does anyone know in which situations it was originally
raised and for how long? I guess for diving, in stormy weather and
also in dangerous (battle) situations it was mostly lowered, but I
don't know for sure. So, any comments are highly appreciated.

Cheers, LGN1

[Myxale]

Matey take a lookee here:
http://www.uboat.net/articles/id/51

Cool stuff!:up:

[Jan Kyster]

:hmm: How do you lower it?

[Anvart]

Hi,

thanks to Anvart it is possible to have the DF antenna in SHIII raised
and rotating. Unfortunately it is only possible to have it either
raised or lowered, i.e., one has to choose one way or the other.

In most pictures of german submarines (I have seen) the DF antenna is
lowered. Does anyone know in which situations it was originally
raised and for how long? I guess for diving, in stormy weather and
also in dangerous (battle) situations it was mostly lowered, but I
don't know for sure. So, any comments are highly appreciated.

Cheers, LGN1
Guys, unless not you asked to make DF antenna raised and rotating?
You knew, that DF antenna is not operated.
First I have made DF antenna rotation for Type 7c and Type 9 only,
but you asked to make it for other types of submarines too.
:hmm:

[Anvart]

:hmm: How do you lower it?
Don't use mod.

[Jan Kyster]

:oops: ...but it's integrated in GWX 1.02 patch?

[Anvart]

:oops: ...but it's integrated in GWX 1.02 patch?
You have not full info. DF antenna rotation mod for Stock, RUB1.45, NYGM 2.2 and GWX exists with 12/21/2006.
:D

[Anvart]

:oops: ...but it's integrated in GWX 1.02 patch?
Plz to GWX thread.

[bigboywooly]

You just need the turm dats that you had before you installed the 1.02 update

[LGN1]

Hi,

Sorry, I didn't want to criticize Anvart's work. I like it and I use the raised DF antenna. I just wanted to know how the antenna was operated historically.

@ Myxale: Thanks for the link, very interesting! Unfortunately, nothing is written there how it was commonly used (raised 24/24,...?).

Cheers, LGN1

[Anvart]

Hi,
...
commonly used (raised 24/24,...?).

Cheers, LGN1
As it should be understood?

[ref]

Hi,

Sorry, I didn't want to criticize Anvart's work. I like it and I use the raised DF antenna. I just wanted to know how the antenna was operated historically.

@ Myxale: Thanks for the link, very interesting! Unfortunately, nothing is written there how it was commonly used (raised 24/24,...?).

Cheers, LGN1

As I understand it was used much like the hydrophones, an operator trying to catch a radio transmition, picture it as when you use an AM radio nd rotate it to get a better reception, when you achieve the best result your antenna is lined up with the source.

Ref

[Anvart]

Hi,

Sorry, I didn't want to criticize Anvart's work. I like it and I use the raised DF antenna. I just wanted to know how the antenna was operated historically.

@ Myxale: Thanks for the link, very interesting! Unfortunately, nothing is written there how it was commonly used (raised 24/24,...?).

Cheers, LGN1

As I understand it was used much like the hydrophones, an operator trying to catch a radio transmition, picture it as when you use an AM radio nd rotate it to get a better reception, when you achieve the best result your antenna is lined up with the source.

Ref
For search of radiating objects aerials of the directed action are used.

[Sailor Steve]

I agree with ref. I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.

[Reece]

Hey although it's motorised therfore not accurate, you got to admit, it looks cool!:D
Thanks Anvart, got it all up and running, gone through a patrol with no CTD's.:yep:

[Cheapskate]

Hey although it's motorised therfore not accurate, you got to admit, it looks cool!:D
Thanks Anvart, got it all up and running, gone through a patrol with no CTD's.:yep:

Motorised ??

Did you try taking your radio man off-station and not replacing him.

I did that on a Stock 1.4 version and the rotation stopped!!

Edit: Haven't tried Anvarts implementation on GWX yet....bit scared to do that in case something gets broken.

[Anvart]

I agree with ref. I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.
:rotfl:
Someone spoke, that DF antenna rotates automatically?
In my mod, if radioroom without radioman (not manned), DF antenna will not rotate.
(Cheapskate:up: ).
:rotfl:

[Hartmann]

The most reliable rotating engine !! rotate it by hand :rotfl: :rotfl:

[Anvart]

The most reliable rotating engine !! rotate it by hand
Yes?
Begin. http://img186.imageshack.us/img186/1359/driveoy3.gif

[sergbuto]

I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.
Furthermore, I think the antenna could not be rotated full 360 degrees.

[Samwolf]

I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.
Furthermore, I think the antenna could not be rotated full 360 degrees.

The GWX version rotates halfway and then reverses:up:

[Reece]

Lucky Sh*t!!! :cry: Wonder what file causes/fix's this!!:yep: Come on Anvart drop a hint .. A big one though! ... Please!:D

[LGN1]

Hi all,

thanks for the info. I am still wondering if the DF antenna was operated all the time or only when contacts with enemy ships were expected. Anyway, l learned a lot about the DF antenna. Thanks.

Cheers, LGN1

[sergbuto]

Hi all,

thanks for the info. I am still wondering if the DF antenna was operated all the time or only when contacts with enemy ships were expected. Anyway, l learned a lot about the DF antenna. Thanks.

Cheers, LGN1
LGN1,

It is my impression too, that the antenna stayed in the lowered position most of the time but was used more often in the patrol grid assigned to the U-boat.

[Sailor Steve]

The GWX version rotates halfway and then reverses:up:
COOL!:sunny: :sunny: :sunny:

[Anvart]

...
Furthermore, I think the antenna could not be rotated full 360 degrees.
????? :o

The GWX version rotates halfway and then reverses:up:[/quote]
I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.
Furthermore, I think the antenna could not be rotated full 360 degrees.
+90° <--> -90° ?
You are tired to rotate.
http://img186.imageshack.us/img186/1359/driveoy3.gif

[Anvart]

...
Radio direction finders of German U-boats in WWII
...
The antenna had to be able rotate on its axis. The rotation mainly was by hand, by means of a handle. Picture number 1 shows radio direction finder consisted of receiver (1), loudspeaker (2), loop antenna (3) and a handle (4).



Picture 1: Radio direction finder:



http://uboat.net/articles/images/huff_duff_1.gif

...

The GWX version rotates halfway and then reverses:up:
COOL!:sunny: :sunny: :sunny:

:rotfl: :rotfl:
1) Radio direction finder antennae rotates by wheel to similarly rotation of a radar antennae.

2) Not all submarines had a direction finder attachment to Keln E-526 (or T9K39 Main).

[Anvart]

I'm pretty sure they didn't rotate automatically; the radioman rotated it by hand to get the direction of an incoming signal. Hence "direction finding" antenna.
Furthermore, I think the antenna could not be rotated full 360 degrees.
What reasons for such opinion? :o
At cinema I saw automobile RDF and its antenna did a full turn.

[Anvart]

Let's not dream, and we shall look only the hard in game facts.

http://img208.imageshack.us/img208/6439/noradaruz0.jpg

http://img208.imageshack.us/img208/8026/yesradarzt8.jpg

http://img208.imageshack.us/img208/903/ontopyl7.jpg


Question: whether can radar antenna and DF antenna simultaneously rotate?...
But it is a theme of another mod.

[Hartmann]

i would have the antenna always raised If i was a kaleun

You don´t know when a group of ships sailing in radio silence could transmit something.

my boat is always in war and looking for targets.:arrgh!:

[Sailor Steve]

Good points, Hartmann. Also, if the radio guy's not looking for signals, what am I paying him for?!:damn:

[Anvart]

I as an aquarian small fish, see all, something speak, but anybody does not hear me.
:rotfl: