I pointed it a year ago in the previous forum. IMO Dena has no search radar.
That cover can´t allow a clear transmissions/reception of radar waves.
Any modern radar, specially military search 3D radars, are working in more than high frequencies, (new ones are in S band), at the point that in a modern phased array radar ships (like the ones with Aegis) the crew cannot be in front of the radar. The irradiation it is so high that the effect it is similar to a microwave.
A plastic cover has no sense because it would melt easily. Few radars have plastic covers. Metallic it is impossible because it affect to TX/RX waves, and plastic cover would melt in few seconds. Only dielectric materials can make that job, but if they are covered, they need refrigeration in addition. So all modern radars Spy family, APAR/Empar, and others are covered but refrigerated. That one isn´t refrigerated.
The Asr radar, like the rest of the contemporary radars (IMO equivalences); like Russian MR 750 Fregat and Chinese Type 382 HAVE NOT covered their antennas and you can see easily the RX/TX modules, and even in a corner of each line of modules, you can see the cables or even tubes for protecting the cables that connects each line of TX/RX modules.
There are some hints you can guess easily that Dena is not Full Operational Condition; it is the newest frigate of the South Fleet and you are seeing in real time how Sahand took 5 or even 6 years to have full operational systems like Kamand FC system, FC system of the Fajr.27 and SAM with real Fire control radar. Dena has the old coffing system for launching only two Sayyad missiles and only way to guide them it is a WM20 type FC radar that it is very well known and improved in other IRIN vessels (Sina/Kaman class).
But, no way. It is not possible to be a long range operative radar. No one have this kind of radar antennas. Neither russians, chinese, europeans or indian navy military vessels.
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