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Tracking generator internal view. Sweep input is input via the top N connector and is isolated by a 3 dB attenuator. RF output is via the side BNC connector and is also isolated by a 3 dB attenuator. VCO and PLL is in the lower right.
Ewwww... Baseline response. If I was smart and rich that would be straight line. DC to about 850 MHz is shown.
Sweep of a Mini-Circuits PLP-550 500 MHz lowpass filter.
Sweep of a homebrew 40 - 70 MHz bandpass filter.
Sweep of a Mini-Circuits PLP-150 150 MHz lowpass filter.
Sweep of a 836 MHz cellular phone bandpass filter.