Instead of a jamming pod occupying weapon stations, the NAVY selected the AN/ALQ-51 Angle Deception Jamming system, that could be built into the already crowded airframe of the A-4, A-6, F-4, and F-8 planes.
This choice is limited the equipment electrical consumption, and the available space it could occupy.
It consisted of two suitcase sized boxes which had been installed in the A-4 gun can bay under the cockpit floor, limiting its ammo.

Inverse Amplitude Modulation was used against the SA-75MK Dvina (SA-2B/F) systems.
It radiated into the side-lobes of the radar, while the main-lobe left untouched.
At the Dvina operator screen, this technique resulted a "mustache" shaped target.
The automatic angle tracking would track the side of the "mustache" (where the target shape is widest) instead of the middle of the target causing miss, so the target had to be tracked manually.


Inverse Gain Jamming was used against the AAA SON-4 (Whiff) SON-9 (Fire Can) fire control radar systems.
During target tracking, the pencil beam of the antenna is conically scanned around the tracked target, mechanically. The target tracking system seeks to equalize the received signal strength during the rotation, thus centering the target.
The stronger jammer signal will lure the radar boresight away the target, eventually breaking its angle lock.