Partially resolved hyperfine pattern for the 3_0,3 ← 2_1,2 transition of the A-symmetry ground state of Z-AHA (LA-CP-FTMW experiment) and completely resolved hyperfine structure using the cavity-based (LA-MB-FTMW) experiment, where each transition appears as Doppler doublets due to the sub-Doppler resolution of the spectrometer. The simulated spectrum is also depicted for comparison (in blue). The intensity is given in arbitrary units.