14

Group delay uncertainty

For more details see specifications of the E8361C.

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).

Specifications for electrical-electrical measurements (E/E mode)

All specifications of the E8361C-014 Network Analyzer apply.

Please see the corresponding Network Analyzer data sheet and User’s Guide.