Viavi 3900 Series Operation Manual page 258

Radio test set
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7. 5. 3. C. 8
I mpe da nc e
Th e AF Im p ed a nc e f ield d efin es th e ex ter na l te rm ina tio n va lue u se d t o c alc ula te th e A F
G en er ato r p ow e r le ve l.
7. 5. 3. D
S oft Ke y Defi n iti o ns
7. 5. 3. D. 1
RF G en S oft Ke y
Se le cts a nd ind ic ate s the O n/ O ff st ate o f th e R F G en e rat or ou tpu t fr om t he Te st S et.
Whe n the g en er ato r is d isa ble d , an R F O FF in dic at or is s ho w n o n the T ile.
7. 5. 3. D. 2
RF O u t S o ft Key
Th e RF O u t S of t K ey co nt rols th e RF O u tpu t s ign al rou tin g. Se le cts ei the r th e G EN
(G en e rat or) C on ne cto r o r T /R C on n ec tor as R F Ou tp ut po rt.
7. 5. 3. D. 3
RF O ffse t S oft Ke y
O pe ns a so ft k ey su b -m en u tha t s ele ct s to In clu de o r E xc lud e an y se t A na lyz er or
G en er ato r O ffs e t.
7. 5. 3. D. 4
Ge n F req = An a Fr eq + Dx O ffset S o ft Key
Th e G en F req = A na Fr eq + D x O ffs et S oft Ke y se ts t he R F G e ne ra to r fre qu e nc y to a
va lue s pa ce d fro m the R F An a lyz er freq u en cy as s et i n th e Dx O ffs et fiel d o n the
G en er ato rs Til e.
7. 5. 3. D. 5
I NC/ DE C S o ft K ey
O pe ns a so ft k ey su b -m en u tha t in cr em e nts o r d ec rem e nt a sp ec ific se ttin g.
7. 5. 3. D. 6
I NC Ge n F req / DE C Ge n F req S oft Ke y
Ea c h pr es s o f the so ft ke y c au se s th e R F G e ne ra tor f req ue n cy t o in cre m en t or d e cre m en t
by th e v al ue se t in th e F re q Inc fie ld on th e G e ne ra tor s T ile .
7. 5. 3. D. 7
I NC Ge n L eve l/ DE C G en L ev el S oft Ke y
Ea c h p re ss of the s oft ke y c au se s the R F G en era to r le ve l to in cre m en t o r d ec re m en t b y
th e v alu e se t in th e L ev el Inc fie ld on th e G e ne ra to rs T ile .
7. 5. 3. D. 8
I NC An a Fr eq /D EC A na F re q S o ft K ey
Ea c h p re ss of the s oft ke y c au se s the R F An a lyz er f req u en cy to inc re m en t o r d ec rem e nt
by th e v al ue se t in th e F re q Inc (A n aly ze r) fi eld on th e An a lyz ers T ile.
A n al og D up le x S y st em
7 - 48

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