N4374B Datasheet, PDF (14/18 Pages) Agilent(Hewlett-Packard) – 4.5 GHz Single-Mode

Specifications for electrical-electrical measurements (E/E mode)
All specifications of the E5071C -245 Network Analyzer apply.
Please see the corresponding Network Analyzer data sheet and User’s Guide
Group delay uncertainty
For more details see specifications of the E5071C.
Group delay
Group delay is computed by measuring the phase change within a specified
aperture (for aperture see below.
Phase change [deg]
GD [s] = -----------------------------------------
(1)
Aperture [Hz] * 360
Group delay uncertainty
Is calculated from the specified phase uncertainty and from the aperture (for aperture see below):
Phase uncertainty [±deg]
GD [±s] = --------------------------------------- *sqrt(2)
(2)
Aperture [Hz] * 360
Aperture
Determined by the frequency span and the number of points per sweep
Aperture:
(frequency span) / (number of points–1)
GD Range
The maximum group delay is limited to measuring no more than ±180 degrees of
phase change within the selected aperture (see Equation 1).
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