Interesting one AWAC aircraft is with rotodome while the other one have erieye like radar ,both have yellow color mean both are going through testing , I think both radars are being tested for PAF and the better will be selected at the end
No, the other one is for the Chinese AF, not for PAF.
PAF long ago selected the rotodome option and is going to stick with it for now since its coverage is 360 degree, while the linear shaped antenna does not provides 360 degree coverage.
On the side note, i am not sure from where does the rotodome version is the 2nd plane, because if the picture is from yanling airbase, then it means this prototype is in its 2nd stage of testing.
First stage of testing is at the manufacturers place or whatever is near to it, once the aircraft reaches yanling it means the next stage would be its operational deployment with the operator of the plane for final round of tests.
1st testing: at the manufacturers place
2nd round of testing: at yanglian testing centre
3rd round of testing with the operator either CAF or PAF
and then the final induction.
http://www.defence.pk/forums/military-aviation/3218-j-10-fc-20-mrca-277.html#post1939821
And if we go with the time line since when the initial ZDK-03 was first rolled out of the manufacturer's place and handed over to PAF, i think this is yet the first 1st prototype and after this testing it will be handed over to PAF, while the 2nd plane might yet be in testing with the manufacturer.
Is there a clear picture of where the ZDK-03 says that its the second plane of the series, as if it is the 2nd, then the first one should have been with the PAF by now.