TCO-980N5-32.768MHZ TCO-980Y-15.36MHZ TCO-981 TCO-981B17 TCO-981B3-38.880000HMz TCO981B5163840MHZ TCO-981B8 TCO-981F-12.288MHZ TCO-981F311.605MHz TCO-981H2-10.24MHZ