DCS Reference: Labels

font_properties =  {"DejaVuLGCSans.ttf", 13, 0, 0, 2}

local aircraft_symbol_near  =  "˄" --U+02C4
local aircraft_symbol_far   =  "˄" --U+02C4

local ground_symbol_near    = "ˉ"  --U+02C9
local ground_symbol_far     = "ˉ"  --U+02C9

local navy_symbol_near      = "˜"  --U+02DC
local navy_symbol_far       = "˜"  --U+02DC

local weapon_symbol_near    = "*"  --U+02C8
local weapon_symbol_far     = "ˈ"  --U+02C8

local function dot_symbol(blending)
    return {"˙","CenterBottom", blending or 1.0 , opacity  or 0.1}
end

Distance conversions

Metric	Imperial	Nautical
305m	1,000'	0.16nm
1km	3,281'	0.54nm
1,524m	5,000'	0.82nm
1,852m	6,076'	1nm
2.5km	8,202'	1.35nm
3,048m	10,000'	1.65nm
3,658m	12,000'	1.97nm
4,630m	15,190'	2.5nm
5km	16,404'	2.7nm
9,260m	30,381'	5nm
10km	32,808'	5.4nm
15,240m	50,000'	8.23nm
18,520m	60,761'	10nm
20km	65,617'	10.8nm
27,780m	91,142'	15nm
30km	98,425'	16.2nm
30,480m	100,000'	16.46nm
37,040m	121,522'	20nm