These are generally good systems that would limit enemy air and drone activity blocking communications. They would be limited to use gps(jammable)-ins waypoints mode instead of realtime man in the loop control.
The only weakness is they are noise emitters and can be located by enemy sigint systems. They should be back from frontlines and supported with shorad against cruise missile attacks. Also expensive parts like power source-manned control station can be separated from the emitter antenna vehicle to reduce costs if hit. For frontlines sigint pods for gps ins waypoint mode flying catapult launched medium sized drones instead of radio control that cant be jammed and can do the elint-sigint detection of enemy frontline radio sources. After detected mlrs artillery against enemy frontline jammer-radio positions would be easy and cant be countered.
Two small catapult launched drones can fly autonomously without radio command and give back 2d location of radio emitters like jammers. Intersection of the footprints given by 2+ drones can give accurate location for sar mapping and satellite pictures to get enemy radio location - jammer info.