There is definitely something in this, wrong beam width or something, contacts not showing on F18 radar. I've flown in MP / SRS with F15s close formation before, they're shouting out contacts at 10, 12 , 2 o clock etc. I'm like what contacts? … in high, medium and intermittent modes, 40nm, 80nm, 160nm, azi high and low, 80 and 140 degrees sweep. They're like, you not see the contacts. The radar works, but no-where near as reliable as say F15, SU or M2K etc