The generator matrix

 1  1  1  1  1  1  1  1  1  1  2  2
 0  2  0  0  0  0  0  2  4  2  4  6
 0  0  2  0  0  0  0  2  0  4  2  2
 0  0  0  2  0  0  0  2  2  6  6  2
 0  0  0  0  2  0  2  2  6  2  2  0
 0  0  0  0  0  2  2  0  2  6  4  0
 0  0  0  0  0  0  4  4  4  0  0  0

generates a code of length 12 over Z8 who´s minimum homogenous weight is 6.

Homogenous weight enumerator: w(x)=1x^0+164x^6+658x^8+2500x^10+2048x^11+5664x^12+2048x^13+2444x^14+709x^16+140x^18+8x^20

The gray image is a code over GF(2) with n=48, k=14 and d=12.
This code was found by Heurico 1.16 in 0.409 seconds.