SUBSIM Radio Room Forums - SD radars, Radio Antenna & Loop Antenna ...

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- - SD radars, Radio Antenna & Loop Antenna ... (https://www.subsim.com/radioroom/showthread.php?t=127907)

elanaiba

01-08-08 04:25 AM

Anvart, what is the "MinSensorHeight" Value set in SensorData?

The General

01-08-08 04:54 AM

Best MOD of 2008 so far!

Anvart this is fantastic work! Is this available as a downloadable Mod yet?

Anvart

01-08-08 08:03 AM

Quote:

Originally Posted by lurker_hlb3

Quote:

Originally Posted by LukeFF

Was raising the SV radar antenna a valid (aka, historically correct) procedure?

A picture is worth a 1000 words

http://www.maritime.org/radio-sv.htm

lurker_hlb3, :up: :up: :up:

Anvart

01-08-08 08:24 AM

Quote:

Originally Posted by elanaiba

Anvart, what is the "MinSensorHeight" Value set in SensorData?

You about increase max_height in obj_Extensible? :D
I understand you, but I did not begin to change this characteristic (MinSensorHeight) of SV radar (while) ... May be it's RL characteristic ... I don't know ...
SensorData param's for stock NSS_SS_Head:
MaxRange = 12000;
MinHeight = 6;
MaxHeight = 2500;
MinSensorHeight = 2; ;) !!!
MaxSensorHeight = 20000;
SweepPeriod = 1; !
ElevationMin = 359°;
ElevationMax = 60°.

Anvart

01-08-08 08:29 AM

Quote:

Originally Posted by The General

Anvart this is fantastic work! Is this available as a downloadable Mod yet?

While it's the answer to questions of forum readers only ... and certainly it's in my test swimming pool. :D

M. Sarsfield

01-08-08 09:33 AM

The loop is definitely a DF (direction finding) antenna. Onboard the USS Batfish (museum) there are about three APR-1 electronic boxes located in the command room, which are the DF receivers. Next to those boxes is also an A-scope for the SD radar.

Anvart

01-08-08 12:11 PM

Quote:

Originally Posted by M. Sarsfield

Thanks, M. Sarsfield. :up:

skwasjer

01-08-08 12:26 PM

Cool stuff, Anvart :up:

M. Sarsfield

01-08-08 12:54 PM

Quote:

Thanks, M. Sarsfield. :up:

My pleasure. Just to be clear, when I said "loop", I was referring to the small loop antenna labeled as "IFF" in the game. The antenna could be rotated to fix the location of a radio/radar transmitting source.

The large loop was just one of several antennas for the radios.

Here's a link to what an APR-1 unit looks like. It was used with other AN/APA equipment, depending upon the application.

http://www.radiomilitari.com/apr1.html

Anvart

01-08-08 01:19 PM

Quote:

Originally Posted by M. Sarsfield

Quote:

Thanks, M. Sarsfield. :up:

My pleasure. Just to be clear, when I said "loop", I was referring to the small loop antenna labeled as "IFF" in the game. The antenna could be rotated to fix the location of a radio/radar transmitting source.

Here's a link to what an APR-1 unit looks like. It was used with other AN/APA equipment, depending upon the application.

http://www.radiomilitari.com/apr1.html

OK. :up:
One more plus in favour of NSS_IFF_01 rotation!?
You wish to tell, that IFF systems were absent on US submarines during IIWW...???
And more ...
Position NSS_IFF_02 antenna on Balao sub (in game) does not allow it to rotate ... Look first pic in #18 post ...

Anvart

01-08-08 01:20 PM

Quote:

Originally Posted by skwasjer

Cool stuff, Anvart :up:

Thanks, Skwasjer. :sunny:

M. Sarsfield

01-08-08 01:43 PM

The antenna was manually rotated by the radio operator much like the sound operator rotates the two sound heads. It would not continually spin like a radar antenna.

I don't think IFF existed back then. They relied on radio calls with the code words of the day for identification. They think that the USS Seawolf was possibly sunk by US aircraft/destroyers, because supposedly it did not give the correct response to the destroyer's (USS Rowell) ID call.

Anvart

01-08-08 03:27 PM

Quote:

Originally Posted by M. Sarsfield

1) The antenna was manually rotated by the radio operator much like the sound operator rotates the two sound heads. It would not continually spin like a radar antenna.

2) I don't think IFF existed back then. They relied on radio calls with the code words of the day for identification. They think that the USS Seawolf was possibly sunk by US aircraft/destroyers, because supposedly it did not give the correct response to the destroyer's (USS Rowell) ID call.

1) For full circular survey DF antenna should turn on 180° (or slightly less)... ??? ... , but on pic (#18) it's impossible ..
2) http://www.hnsa.org/doc/radar/part2.htm
http://www.hnsa.org/doc/radar/part4.htm#pgSJ-1

....
and:
http://world.guns.ru/machine/mg07-r.htm
Joke ... :D

M. Sarsfield

01-08-08 03:36 PM

I stand corrected on the IFF. I learn something new every day. When I go to the Batfish this Saturday, I'll keep an eye out for the IFF boxes in the con.

LukeFF

01-08-08 04:41 PM

Quote:

Originally Posted by lurker_hlb3

Quote:

Originally Posted by LukeFF

Was raising the SV radar antenna a valid (aka, historically correct) procedure?

A picture is worth a 1000 words

http://www.maritime.org/radio-sv.htm

Considing how many times I've been to that page, I should have known that... :roll:

Thanks!

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