SD radars, Radio Antenna & Loop Antenna ...

[Anvart]

Hi, all.
In game we have next Air Radars:
1) SD Radar (Early);
2) Improved SD Radar (Late);
3) SV Radar (AdvAirRadars).
For 1 and 2 radars, models are known and clear:




For 3 radar, i have found (in Sensors_sub_US.dat) only this suitable model, but it is called NSS_SS (_Head):



Is it correct?
I wish to know your opinion ...

P.S.
Ok. I am right ... It's right model for SV Radar ...
I have found SVRadar as UpgradePack in NSS_Balao.ups, NSS_Gato.ups, Equipment.ups and UpgradePacks.ups ...
And i have found NSS_SS (it's parent object for NSS_SS_Head) in NSS_Balao.sns and NSS_Gato.sns as cfg#R02... node (Air Radar)
and in Equipment.ups ...

Next ...

In game we have Radio Antenna (equipment).
This device is not functionally (does not work) ...
In Sensors_sub_US.dat i have found suitable model, but it is called NSS_IFF_01 (02). IFF it's Identification Friend or Foe, i think ... For example it's in Tambor CT as cfg#R03 ... I have found it (NSS_IFF_01) in Tambor, Gar and Gato ***.sns as cfg#R03 ...
I have found NSS_IFF_02 in NSS_Balao.sns ...



Is it correct?
And ...
If to make this antenna (NSS_IFF_01) rotating synchronously with SJ radar antenna (eye-candy), it will be correct or not?

And more ...
In Sensors_sub_US.dat i have found model of Loop Antenna.
This device is not functionally (does not work) too ...
And it is not used anywhere (i think)...???

P.S. I have found it in Porpoise, Sargo and Salmon ***.sns as cfg#R03 ...





What do you think about it?
For what purposes these devices are in game?