The seekers (Super AD 26) for Super 530 F and D represent, like their missiles, mature solutions for air-to-air interception in semi-active mode. These are monopulse seekers with 1970s technology, which weigh 30 kg (with the gyroscope); compared to the AD 26, the range is significantly increased, in particular thanks to the larger diameter antenna. As with the Magic, antenna stabilization is provided using a separate gyro (thus avoiding the gyro head). The radome, lengthened by a factor of 2, creates difficulties for the seeker (aberrations), unlike that of the AD 26 (hemispherical); but this choice allowed a reduction in drag.
The difference between the F version (designed for the Mirage F1) and the D version (doppler) results from the choice of on-board radar. When establishing the first Super 530 project, between 1965 and 1967, the threat taken into consideration was low altitude: only a version discriminating targets from ground echoes by the Doppler effect could be suitable. But the onboard radar was to detect low-altitude targets and feature a continuous-wave illuminator for the missile. The tests, at the end of the 1960s, of the model of the Thomson-CSF Cyrano IV radar, planned for the F1, showed that its performance at low altitude was not sufficient to pursue a target. As a result, the F1 radar was not equipped with an illuminator and a pulsed Super AD 26 was adopted for the Super 530F, launched in 1970. In addition, the priority threat seemed to be moving towards very high altitude (Mig 25). A delay was taken in relation to the American competitor missile, the Sparrow with doppler seeker, and to the American pulse doppler on-board radars.
In 1975, when choosing the definition of the weapons system of the Mirage 2000 DA, the Thomson-CSF RDI pulse doppler radar was chosen for the final version of this aircraft (the development time of such a radar was estimated at 10 years), and the Super 530 D, with its doppler seeker, was launched in 1977.
The schedule was as follows: for the Super 530F, program launch in 1970, first successful launch in 1974, entry into service in 1979; for the Super530D, program launched in 1977, first successful launch in 1982, entry into service in 1987. 2,300 seekers were produced.