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B

BAND
Frequency band

BRIDGE
Directional bridge

BROADBAND DETECTION
A method of detection used in scalar network analysis which makes use of broadband power level measurement.

Advantages:

• Simple, inexpensive and robust equipment
• Frequency offset between input and output of device under test possible (e.g. for testing mixer stages)
• Fast

Disadvantages:

• Dynamic range limited to approximately 60 dB
• Measurement errors caused by generator harmonics (e.g. when measuring high- or lowpass filters).

BROADBAND DISPLAY
By measurement of pulse spectra a spectrum analyzer is said to operate in this broadband display mode when the resolution bandwidth is greater than the spacing between the individual spectral lines (pulse repetition frequency) of the pulse spectrum.
Background: With this method the dynamic properties of the selection filter, the video filter and the rectifier will affect the measurement result so that a correction factor has to be taken into consideration (impulse bandwidth).

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