Specifications

Calibration for the FM Discriminator
Measurement
Define Msrrnnt
DETERMINATION OF
1LIUJ i'fiL 1EPHTIUN Mb 1 HUD
...[ h~5E 'NPX) Mrt'irrl
1l~r FM Nr-viati
'Jae Ihe -lurrerr Discr imiridk.i LMibtant FM De-v. - L K'.EO
Derive From [kiub'e iideu ipur H1 4 ate = [Q i F+".
:,t
8
l-.]p Value:,: 1 10 4U.L*
Introduction
Phase Noise Measurements using an FM Discriminator require the calibra-
tion of the Discriminator Constant in V/Hz. The Discriminator Constant
is the sensitivity of the discriminator to frequency fluctuations.
The HP 3048A Phase Noise Measurement System offers three methods for
determining the Discriminator Constant. The primary considerations for
selecting a calibration method are measurement accuracy and equipment
availability.
Calibr Process: $N w/FM Discriminator 2-75