This is the radar of the Type 022, the Type 362 or MR36A for its export name.
It might have been fitted on other ships like Luhus or Ludas but I'm not sure. Exceeding 42km range is direct line of sight or radar horizon, but essentially this depends on how tall the target is. Exceeding 120km is for MOTH, as in Microwave Over The Horizon, which is Chinese acronym for Atmospheric Ducting.
Atmospheric ducting happens to favor conditions in the East and South China Seas.
However, using this radar mode is a double edged sword, as you can give away your position to enemy ESM and have you targeted instead.
The ranges of the YJ-83 has also greatly exceeded 120km, making this mode on the radar obsolete. When the YJ-81 was first rocket powered, its range was 40km. Adding a turbojet pushed that to 80km as it became the YJ-82. Further refinements turned it to the YJ-83 as range reached over 120km. But continued improvements of the YJ-83 pushed the range further to 180km, then 240km then 300km on the YJ-83B with the canted nose and optical sensor. The latest versions of the missile outgrew the 022's organic sensors, and these missiles also equip the 056A.
That's the slanted nose YJ-83B, and the firing platform is an obvious 056.
At this point, the 022 lacks the long range datalinks for airborne and satellite assets like the 056.
The two of which are also obvious here behind the funnel of the 056. You can see two domes, a SATCOM and a long range datalink for aircraft to ship, which I believe is the Type 366-2 The 366-2 is based on the Russian Mineral ME3.
The Mineral ME, which the Type 366 used on ships like the 054A, 052C and 052D, has a range of 250km on its active radar, and 450km on its passive radar. This is well adequate for firing all versions of the YJ-83 and the YJ-12. Below is the datalink. In the Chinese form, the dome is either round like this or in the 054A, or it takes the R2D2 form which is more common. Anatomically it has the same structure as a SATCOM with a parabolic antenna.
Our 022 lacks any of these and that's a problem.
There is an antenna sticking out at the back of the ship and I believe that's a common datalink, and is found in most PLAN warships. So even with the lack of SATCOM and long range aerial datalink, the boat can still talk to a ship that have these and get target coordinates there. All it takes is a 056A or 054A to lead a formation of 022.
If you look at some of the competition, like the Tuo Chiang, the Tuo Chiang has a datalink and a SATCOM in front and behind the superstructure, or two SATCOMs.
The lack of these were clearly flaws on the 022 design, a rare flub in PLAN planning, which they quickly rectified with the 056 design.
Defensively, I find the 022 to be well equipped. Its got a pair of ESM mounted on the arms of its tiny mast, which can warn the ship of threat radars, such as those from antiship missiles. Its got the luxury of chaff and decoys which might be selected according to the wavelength of the threat as determined by the ESM. The CIWS is optically aimed using an EOS, so it can't be radar jammed and radar LO shaping won't work against it. A missile with a passive seeker isn't going to work against a passive fire control system. A missile with an active seeker is going to have to work hard against the LO shaping, interacting with the sea clutter, and still deal with the decoys and the CIWS.
