Ukraine destroyed Russia's most powerful GPS jammer with a GPS-guided bomb.
The GPS jamming is theoretically very easy to make. The radio system must only send radio transmissions that cover the GPS signal. And that is the thing that makes the GPS jammer vulnerable. The location of that kind of radio transmitter is quite easy to locate by using radio-bearing devices. And then to that point can target different types of anti-radiation missiles (ARM). Those missiles and grenades use radio receivers or "passive radar" to detect the GPS jammers and other radio sources.
The existence of anti-radiation missiles is a well-known fact, and weapons like AGM-88 HARM (High-Speed Anti Radiation Missile) have shown their effectiveness on battlefields. But it's possible that also ground-launched missiles and some grenades can have this option. Also, is possible that some homing bombs like JDAM glide units can be modified for homing to the radio transmitters. In attacks where attackers use GPS-homing bombs, the attacker has a benefit.
The anti-radiation missiles and grenades can be effective tools also against the jammer aircraft and ground-based jammer systems. If anti-aircraft missile systems use the anti-radiation missiles those systems can be effective against jammer aircraft. That denies the jammer system's effective use against radars. If anti-radiation missiles are used to keep frequencies where radars operate clean, the system can destroy jammer aircraft. Those weapons also can destroy things like command radio transmitters.
The attacker must keep only the frequencies that the GPS uses clean. The defender must find the right frequency to make the jammer effective. So the attacker can adjust the radio-bearing system to a frequency that the GPS uses. And if there is some kind of radio traffic that doesn't belong to the GPS the anti-radiation weapons can aimed at that radio transmitter. The same weapons used against GPS jammers can also used against any radio source. And the anti-radiation missiles can make the anti-aircraft systems more effective.
If some anti-aircraft missiles can be home to radio sources that thing makes airborne jammer systems, aircraft and missile radars, and AWAC (Airborne Warning and Control) aircraft like fly paper that pulls those anti-radiation missiles to them. Those anti-radiation missiles that can be ground-launched HARM missiles can used against jammer aircraft. The system detects the jammer that disturbs the radar and then shoots anti-radiation weapons at those aircraft. Anti-radiation weapons can also be used against all enemy troops and installations that use radios. The user of those systems must only know the radio frequencies.
https://www.forbes.com/sites/davidaxe/2023/10/31/the-russians-installed-a-gps-jammer-in-ukraine-the-ukrainians-blew-it-up-with-a-gps-guided-bomb/?sh=1ff920d363eb
https://www.thedrive.com/the-war-zone/mig-29-fulcrums-are-ukraines-jdam-er-bomb-trucks
https://en.wikipedia.org/wiki/AGM-88_HARM
https://en.wikipedia.org/wiki/Joint_Direct_Attack_Munition
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