The generator matrix

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

generates a code of length 84 over Z16 who´s minimum homogenous weight is 80.

Homogenous weight enumerator: w(x)=1x^0+187x^80+308x^82+256x^83+584x^84+256x^85+264x^86+154x^88+36x^90+1x^96+1x^160

The gray image is a code over GF(2) with n=672, k=11 and d=320.
This code was found by Heurico 1.16 in 0.637 seconds.