Huang, L.T. Liu, X.Y. Lu, P. Qian, M.X. Sun, B.G. Wang, J.G. Wei, J.H. Wu, F.F. Yang, Y.L. Zhou, T.Y. JACoW Publishing Geneva, Switzerland 978-3-95450-201-1 10.18429/JACoW-IBIC2018-MOPB09 English 93-96 MOPB09 betatron storage-ring detector pick-up experiment Contribution to a conference proceedings 2019 2019-01 https://doi.org/10.18429/JACoW-IBIC2018-MOPB09 http://jacow.org/ibic2018/papers/mopb09.pdf Tune measurement is one of the most significant beam diagnostics at HLS-II storage ring. When measuring tune, higher tune spectral component and lower other compo-nents are expected, so that the tune measurement will be more accurate. To this end, a set of BBQ (Base Band Tune) front-end based on 3D (Direct Diode Detection) technique has previously developed to improve the effec-tive signal content and suppress other components. Em-ploying the BBQ front-end, four different tune measure-ment schemes are designed and related experiments per-formed on the HLS-II storage ring. Experimental results and analysis will be presented later.