R F M E As Ur Em E Nt S C O Nfig Ur Atio N Til - Viavi 3900 Series Operation Manual

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7.4.15
RF M easu remen t s C on f ig ura ti on T ile
Th e RF M e as ur em e nts T ile de fin es the p ar am e ter s u se d to p e rfo rm R F M e a su rem e nt s.
7. 4. 15 .A
Fi el d / So ft Key Defi ni ti o ns
7. 4. 15 .A .1
Fr eq ue nc y In cr emen t
Se ts th e v alu e the R F In pu t F req u en cy ch an g es ea ch tim e th e I NC A n a F re q/ DE C A na
Fr eq S oft Ke ys a re pre ss e d. T h e I NC A n a F re q/D E C A na F req S of t K ey s a re ac ce ss ed
fro m the IN C /D EC S of t Ke y o n t he G en er ato rs Tile , A na lyz er s T ile a nd M e ters T ile. V a lue
is s p ec ified in M H z, k H z o r H z as d efin ed b y u se r.
7. 4. 15 .A .2
Au toT un e T hr esh o ld
Whe n Au to tu ne is se lec ted th e Te st Se t s ets th e RF A na ly ze r fre qu e nc y to th e str on ge st
sig na l d et ec ted a t th e a ct ive R F I np ut co nn ec to r. T his re ad in g d e fine s an ac ce pt ab le
sig na l le ve l in d Bm 's fo r su c ce ss ful d e tec tio n o n the A N T ( An te nn a) C on ne cto r. De fa ult
se ttin g is - 1 0 0 d B m on th e A N T (A nte n na ) C on n ec tor w hic h r efle ct s -6 0 dB m o n the T /R
C on ne cto r.
7. 4. 15 .A .3
Au toT un e S tar t Fr eq
Se ts th e lo w er fre qu en cy a t w hic h Au to Tu ne s we e ps sta rt.
7. 4. 15 .A .4
Au toT un e S to p F req
Se ts th e u pp e r fre q ue nc y a t w h ich A uto T un e s w ee ps st op .
7. 4. 15 .A .5
Au toT un e F req u en cy Re sol u ti on
Au to Tu n e F re qu en cy R es o lutio n de fin es th e u ni t of m ea su re a freq u en cy is rou n de d t o
w he n A u toT u ne is en ab le d.
Fo r ex am p le, if Au to Tu ne F re qu e nc y R e so lu tion is s et to 1 00 0 H z, an d the 3 9 00 id en tifie s
a fr eq ue nc y a s 1 51 .6 25 02 0 M H z, t he fre qu en cy wo u ld b e ro un d ed to 1 51 .6 25 00 0 M H z a nd
Fr eq ue nc y Er ror m ete r w o uld b e 2 0 Hz .
7. 4. 15 .A .6
Fr eq O ffse t R eso l uti o n
Se ts th e R F A na lyz er R F F re qu en c y M e as ur em e nt r es olu tio n. Whe n se t to 10 H z the
sp ee d of m ea su re me n t in cre as es , h ow e ve r, th e re so lutio n is o f p o ore r q ua lity .
A n al og D up le x S y st em
F ig . 7 -24 R F M ea su re m en ts Co n figu ra tion T ile
7 - 29

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