A trick I learned is use a smaller fixed blade, like the Ka-Bar angled blade with the flat plastic sheath, and attach it to your pants belt, on the weak side. Then put your duty rig on over it. Your radio and other items will slightly "hide" or cammoflauge the handle sticking up and won't appear so "officious" or frightening to the average joe. And it won't grab the attention of the Chief, or any other, "don't appear intimidating", brass that may have a problem with a visible fixed blade on your belt.