• RE: Lock time with HMC703 + HMC733

    The HMC733 has a bug in that the output buffer may generate a 7.5GHz sub-harmonic with Vtune around 8V (15G output).  When sweeping from 19.8GHz to 12GHz the HMC703 may try to lock on this sub-harmonic which causes the sweep to stop as Vtune enters the problem…