Agilent Technologies HP 8642A/B Specifiche Scaricare il pdf (Pagina 104)

Phase Noise Using

an FM

Discriminator

Define Msrmnt

fnstr.

Params

SOURCE

AND

iNTERFJWPARflMETER ENTRY

EriTEP

iHt

POL

LfiWINH PfiF'flMFTFP

c

.

■

i'arr

let Fi

equ*<Ky

rjPt«rtni-.Tj

iF

,.

:

i-.

Input

r,

„,_,,,„.

-V:-:eplal.iit- Values:

':

T

n 110.F

iELECJ

fl

PHfiSE [lETECTO

Inter-naj Phase Detector:

5 MHz to 1600 MHz

internal Ptiase De-tec tor:

1.7 HHr t,-

Externs; Oiase/PM Lfcte.: t■

J

-

MEn-:-l>REME.N" L'tMNHKiN

r

i"'r-rBE

'L'UNt

Frequency Parameters

Carrier Frequency

is the

fundamental (center) frequency

of

the device you

are measuring.

The HP

3048A uses

the

Carrier Frequency entry

to:

• Label

the

Carrier Frequency

on the

Results Graph.

• Calculate Sigma vs.

Tau and

S

y

(f).

NOTE

When loading

a

Result File

for

calculating Sigma

vs. Tau,

the carrier frequency used

for the

measurement must

be

entered

in the

Instrument Parameters display

in

order

to

compute accurate values.

Instr. Params:

$N

w/FM Discriminator

2-35

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