The Agilent HP 3746A is a Selective Level Measuring Set that makes fast, accurate selective level Measurements. A built-in Synthesizer gives High tuning accuracy and 1 Hz Resolution across the entire 50 Hz to 32 MHz Frequency range.
Tuning of th HP 3746A can be performed by entering a single frequency, stepping between frequency limits, stepping through a set of unrelated frequencies, or by FDM plan description.