HP 8712C, Руководство пользователя, Страница: 490 / 559

Specifications and Characteristics
Instrument Specifications and Characteristics
AM Delay (Options 1 DA
and
Aperture: 55.56
Resolution: 1
Accuracy: ns at 0 16 averages, well-matched device,
calibrated)
Delay Range: 30 (9000 m)
Amplitude -10 to + 13
Typical AM Delay Dynamic Accuracy (calibrated at + 10
Power Delay
t o n s
t o n s
G r o u p D e l a y Group delay is computed by measuring the phase change within a
frequency step (determined by the frequency span, and the number of points
per sweep).
Aperture:
Maximum aperture:
20%
of frequency spun
Minimum aperture: span) /(number of points 1)
Range:
The maximum delay is limited to measuring no more than of phase
change within the minimum aperture.
Range = minimum aperture)
Accuracy:
The following graph shows group delay accuracy at 1300 MHz with
type-N transmission calibration and 15 Hz bandwidth. Insertion loss is
assumed to be
and electrical length to be ten meters.
10-14