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It will be harder for fighters because they only scan an area in front of them whereas ground radar and AWACS scan 360 degrees.
Antiradiation missiles have an unparalleled ability to home in on enemy emitters and disrupt or destroy the elements of an integrated air defense system (IADS). However, they are not classic precision-guided weapons, such as laser-guided munitions. On the contrary, ARMs cannot be steered and under certain conditions may not guide on the target that they were originally fired. Also, they do not have the ability to discern friend from foe. Therefore, the precision detection capability of the launching platform and its human operator in the loop are key elements ensuring weapon effectiveness and the prevention of fratricide. The translation of what the launching aircraft sees to what the ARM sees is paramount.
Several unique factors effect ARM employment. Most significant are the ambiguities in the radar frequency spectrum which cause friendly, enemy, and neutral radar emissions to appear similar. Ambiguities make accurate platform targeting and missile guidance difficult. These ambiguities will continue to worsen as the frequency spectrum becomes more dense and overcrowded. A limited amount of frequencies is suitable for radar operations, and as newer systems evolve, more emitters will overlap. In some instances, high target area activity in a dense emitter environment may cause cockpit task saturation and decrease targeting efficiency. Now previously defined enemy emitters from the Soviet era cannot be exclusively classified as such. Potential partners in multinational combined operations may employ such systems, causing use of the same weapon system on both sides of a conflict. For example, in Desert Storm, coalition forces and Iraq both used the SA-6 and Hawk weapon systems. As systems intermingle during changing world political conditions, it will become increasingly difficult to detect friendly, enemy, and neutral radar emitters
The AGM-88 IS the HARM. It's not nearly manuverable enough to hit a fighter that's trying to avoid it. It was designed for shooting at nonmoving ground targets. It's big and not very manuverable so that it can have longer range and carry more fuel. Not only that, but it's a fixed antenna.
There IS something similar to this. Some modern missiles have home on jam (HOJ) which switches the missile guidance to passive when it detects jamming activity from its target.
Also, I don't know about other air forces but most Russian fighters are datalinked to their AWACS so they usually don't have to turn their radar on.
There are no ARMs out there that could track an aircraft and keep up with the manuvers they can pull to evade them.