SD radars, Radio Antenna & Loop Antenna ...

[Anvart]

Originally Posted by LukeFF

Yes, but those are stock values, and they are way off the mark. RFB fixes that.

Do not forget it's 1.4 version ...

[Anvart]

Originally Posted by elanaiba

Anvart, you are correct, that is the SV radar antenna. It is similar but significantly larger than the late war SJ-1 antenna.

The object names are not always correct but those are not supposed to be seen by the public. The confusion is based on a wrongly labeled drawing in a book.

The actual SS antenna is relatively small and looks "identical" to the early - non slotted - SJ radar antenna. Not modelled but I guess you could make a "clone". The SS appeared after the war so it was not one of our targets.

The rest of the devices mentioned are just there to help recreate the look of US submarines going through wartimes changes.

Thanks, Elanaiba.

[Anvart]

Hi, All.
Some people asked to me questions about SV Radar Antenna, and ...
I have inserted Balao sub with date later than 8/30/1945 into my test (single) mission ...
And certainly this submarine has been equipped by SV Radar Antenna ...
That at testing there were no hindrances from other devices I has made SV radar antenna mast rising also as SD radar antenna ...
But on periscopic depth SV antenna head rose above water on height insufficient for work of SV radar, therefore I have changed max_height parameter of obj_Extensible controller from 5 meters to 6 meters ...
Look that we have ...

Balao sub under water:



SV radar antenna is raised. We see messages "Radar contact ...":



And on the map we see not only airplanes, but also the ships !!!



All very well, and I think may be it's necessary make raising/lowering for SV radar antenna too ...???

But there is also unpleasant moment... SV antenna head rotates all time and under water too ... :rotfl:

[LukeFF]

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

[lurker_hlb3]

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

[elanaiba]

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

[The General]

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

[Anvart]

Originally Posted by lurker_hlb3

A picture is worth a 1000 words

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

lurker_hlb3,

[Anvart]

Originally Posted by elanaiba

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

You about increase max_height in obj_Extensible?
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]

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.

[M. Sarsfield]

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]

Originally Posted by M. Sarsfield

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.

Thanks, M. Sarsfield.

[skwasjer]

Cool stuff, Anvart

[M. Sarsfield]

Thanks, M. Sarsfield.

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]

Originally Posted by M. Sarsfield

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.
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 ...