Simu Lcast An Alysis ( 390Xopt 210) - Viavi 3900 Series Operation Manual

3 90 0 O pti on al Fu n cti on s
8.2.2.

Simu lcast An alysis ( 390XOPT 210)

Th e Sim u lc as t A na lys is Op tio n ( 39 0X O P T2 1 0) e n ab les T rac kin g G en er ato r fu n ctio na lity
on th e Au dio A n aly ze r. T h e A u dio T rac kin g G en er ato r p lot s th e fre qu en cy re sp on se o f
th e e xte rn al au dio o r d em o d a u dio p ath . T h e S im u lca st A n aly sis O p tion c an be u se d t o
ev alu a te p re -e m ph as is a n d d e- em p ha sis c urv es o f th e t ran sm it an d rec ei ve au di o p at hs .
Th e ex am p les b elo w sh ow t he S im ulc as t A na lys is O ptio n be ing u se d to t es t a rad io 's
re ce ive fre qu e nc y re sp o ns e ( de -e m ph as is c ur ve ) a nd tra ns m it fr eq ue n cy res po n se (p re-
em p ha si s c urv e) . B ot h e xa m p les sh ow M a rk ers 1 an d 2 e na b led a nd po si tion ed a t
10 00 H z an d 20 00 H z in o rd er t o e va lu ate s ign al stre n gth a t th es e p o ints o n th e sig na l.
Bo th e xa m ple s s ho w a n a pp ro xim a te 6 d B va ria nc e in s ign a l str en gt h b et we e n 1 00 0 H z
an d 20 00 H z.
F ig. 8-8 A u dio A na lyz er - R x Ba n dp as s S w ee p
F ig. 8- 9 A u dio A na lyz e r - T x Ba nd p as s S w ee p
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