Amendment to Lock-In Amplifier

reference frequency. The UHF-MF option allows 8 harmonics of a single reference frequency or combinations of the two reference frequencies. NIST Response: The UHF-MF option is what we require technically, and what should be included in the quote. 8 harmonics are from a single reference signal. Yes,

that is why the option UHF-MF is required. See updated Statement of Work for more details. Response time has been extended from May 5,2026 to May 8,2026. As described in the attached Combined Synopsis Solicitation, Statement of Work and Ap