Most OHV testing is at around 20-24 inches on an angle from the outlet, and I believe is 96 db, except for a few areas which are around 90-92 db, (dunes NRA for one).
1981 Cherokee W/T, 360, T-18, Warn 8274 in custom bumper/deer strainer (tested and approved)
1988 Cherokee 4 door, 3" Rancho lift, custom sliders/steps, custom roof rack, custom camo paint, custom camo headliner, custom bumpers and Warn 9500 HS, 31-10.50's
Only 31's, but can drag self with either rig
BLM John Day/Snake RAC-OHV Representative
Wolfpack 4x4's - Region 5 - "Cave Lupum"
VP- Outcast Land Use Review Team