I noticed when using the Sedjeel on the Iranian F-14 in both test flights and in actual matches. The normal pulse TRK mode is completely unusable with the Sedjeel. You MUST use the Pulse doppler modes, The Sedjeel will not have a lock if you are not in a pulse doppler mode. Is this accurate by any measure? The main issue with the Sedjeel when it comes to consistence performance is not the missile itself, but the radar automatically changing modes, affecting the guidance.