errors</span>
0148         <span class="keyword">if</span> (PHY.n_sym ~= size(data_f_mtx, 2) )
0149             <span class="comment">%fprintf('undetected: wrong packet length / n_sym. detected %d should be %d\n',PHY.n_sym, size(data_f_mtx, 2))</span>
0150             err = 4;
0151             <span class="keyword">return</span>
0152         <span class="keyword">end</span>
0153         <span class="keyword">if</span> (TX.mid ~= PHY.mid)
0154             err = 4;
0155             <span class="keyword">retur