Don't necessarily need a radar for launching an NLOS type missile. The Spike-NLOS for eg is EO/Laser seeker with Man-in-Loop datalink so it can be launched without any radar.LCh doesnt have any radar to use long range standoff weapons unless data is passed off via datalink from other platforms,it has flir and laser designator as main targeting mediums and hms.Its a cheap,agile helo meant for mountain ops,not for tanks on plains as such.There is
LCH doesnt have a radar,only laser designator,camera and flir with integrated hms.The magic of the apache is in the longbow radar,and once you are datalinked with it you can see what it can see.
The advantage of radar of course would be ability to conduct Fire & Forget as well as engage multiple targets simultaneously, but its not necessary for the launch platform to be carrying the radar. For eg the LCH could leverage the Longbow radar from the Apache or even from airborne drones or ISTAR platform and use Co-operative Engagement datalink to fire SANT.