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When the frequency-offset is turned on, the number of sweeps during measurement increases. Is this the normal operation for the ENA?

(SUPPORTED MODELS IN BOLD: E5071C E5070B/71B E5070A/71A E5061A/62A E5061B E5072A)

Yes. If the frequency-offset function is turned ON, the number of sweeps during measurement will increase. For example, the ENA needs two sweeps to measure the S-parameters of a full two-port calibrated setup in a normal frequency sweep; however, four sweeps are required when the frequency-offset function is turned ON. This holds true regardless of whether the stimulus and the receiver ports have the same frequency setting.