The General Dynamics “Keres” (Hebrew for hook) missile is a land based Target Anti-Radiation weapon system which was developed by the United States , according to Israeli Air Force requirements, as part of the Yom-Kippur war's lessons.
Keres uses the same air frame as the Egrof Segoal (Purple Punch), which in turn is the same as the US operated AGM-78 Standard missile but is optimized for land based operations. The Egrof Segoal is operated by the Israeli Air Defense Corps as part of the armament of the Mc Donnel Douglas Kurnass 2000. The Keres was the replacement for the Kilshon (trident), which in effect was an AGM-45 Shrike missile with a second stage booster added. The Kilshon was launched from a frame, mounted on top of a turret less M4A1 tank hull.
According to reports, the Keres missile was first mounted on the same tank hulls as the Kilshon, but due to phasing out of this vehicle, it was later fitted to the flat beds of M809A1 trucks. Due to the retirement of the Sherman platforms, the Keres was eventually mounted on a standard M809 5 ton trucks.
The missile works on an electro-magnetic sensitive guidance system which enables it to hit various radio or radar wave emissioning targets such as radar stations, SAM (Surface to Air) batteries, radar guided guns and air defense and artillery radars. It can do so by locking on targets while flying, after being launched.
The Keres covered all then current SAM batteries threats among the battle theatre, including the most modern and sophisticated ones.
One of the improvements that have been put into the Keres was equipping it with the Shrake missile's improved warhead – a fact that enables it to hit wide-frequency targets.