Measurements of the frequency and electric field dependence of several low-dimensional semiconductors, belonging to the class of substituted morpholinium-TCNQ 2 compounds, are presented. Large enhancement of the conductivity is seen at frequencies in the MHz region and at electric fields of I to 10 V/cm. An empirical description is given in terms of field (or frequency) activated contributions to the conductivity. It is shown that the functional form of the frequency and field dependence is related to the degree of disorder that is present in the system. The systems should be viewed as disordered conductors (similar to Qn-TCNQ2), rather than as semiconductors.