The generator matrix

 1  1  1  1  1  1  1  1  1  1  1  1  0  2  1  1  1  8  1  2  1 12  1  2  0  2  1  8  1  2
 0  2  0  6  4  6 12  2  8  0  6 14  2 14  4  2 10  2  0  6 14  2  6 14  2  4  8  4 10  0
 0  0 12  0  4  0  0  8  0  4  4 12  8 12  8 12 12  0  4  8 12 12  0  8  8  4  0 12 12  4
 0  0  0 12  0  0  8  4  4  4  4  8  8  8 12  0  4 12  4  0  0  4  0 12  8 12  4  0  8 12
 0  0  0  0  8  8  8  8  0  0  0  8  8  0  8  0  8  8  8  8  0  0  0  0  0  0  8  0  0  8

generates a code of length 30 over Z16 who´s minimum homogenous weight is 25.

Homogenous weight enumerator: w(x)=1x^0+60x^25+157x^26+274x^27+565x^28+468x^29+1151x^30+440x^31+536x^32+190x^33+107x^34+82x^35+31x^36+16x^37+9x^38+4x^39+3x^40+2x^41

The gray image is a code over GF(2) with n=240, k=12 and d=100.
This code was found by Heurico 1.16 in 0.186 seconds.