Tektronix PFG 5105, Инструкция по эксплуатации

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INCR SIZE Selec t s t he INCR SIZE parame t er a nd
d isplays t he curre nt s t ep size of t he
INCREMENT key fu n c t io n (use d for i n ­
creme nt i n g a nd d ecreme nt i n g a selec t e d
parame t er). INCR SIZE ca n be cha n ge d
via t he DATA keypa d . The INCR SIZE
setti n g d efaul t s t o t he leas t sig n ifica nt
d igi t of t he ra n ge for t he curre nt ly
selec t e d parame t er: N BURST, DC,
FREQ, AMPL, OFFSET, WIDTH, DE LA Y
a nd RATE. (INCR SIZE cha n ges whe n
ei t her t he ra n ge or t he parame t er is
cha n ge d .) Whe n t he value of INCR SIZE
is cha n ge d by t he user, INCR SIZE is
locke d t o t he n ew value, u nt il t he user
cha n ges INCR SIZE t o 0. If INCR SIZE
is locke d t o a value t ha t is less t ha n t he
leas t sig n ifica nt d igi t of t he ra n ge, t he n
t he PFG 5105/5505 ge n era t es a n error.
Bo t h ampli t u d e a nd offse t are d isplaye d .
INCR SIZE
is n o t save d by t he STORE
fu n c t io n .
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FUNCTION KEYS
r\_; SINE Selec t s a si n e wave ou t pu t (LED o n ).
!\/ TRIANGLE Selec t s a t ria n gle wave ou t pu t (LED
o n ).
n
I
SQUARE
LJ
DC
Selec t s a square wave ou t pu t (LED
o n ).
Selec t s a d e vol t age fu n c t io n (LED
o n ) a t t he selec t e d vol t age. User
mus t press ENTER af t er selec t i n g t his
fu n c t io n (a nd op t io n ally selec t i n g a
vol t age level) t o s t art sig n al ou t pu t .
@)
PULSE KEYS
These keys selec t si n gle or d ouble pulse waveforms.
Pulse wi dt h a nd d elay ca n also be se t wi t h t hese
keys.
SL
PULSE
Selec t s a pulse waveform ou t pu t
(LED o n ).
n
n DOUBLE Cha n ges si n gle pulse ou t pu t t o a
_, u � PULSE d ouble pulse.
WIDTH
DELAY
Selec t s wi dt h of ou t pu t pulse.
Selec t s d elay t o s t a rt of pulse.
PF G 5105/5505 I n s t ruc t io n Ma n ual
Operating Instructions
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SWEEP KEYS
RUN
The RUN key is use d wi t h t he START
START a nd STOP keys ( t o selec t t he START
STOP a nd STOP freque n cies over which t he
ou t pu t waveform is swep t ) a nd t he DATA
keypa d ( t o selec t t he sweep t ype). To
selec t sweep fu n c t io n , firs t se t t he START
a nd STOP freque n cies; t he n press RUN.
®
TRIG KEYS
This sec t io n of keys selec t s t he t rigger source use d
by t he TRIG, GATE, a nd BURST mo d es.
INT Selec t s i nt er n al t rigger source. The ra t e
of t he t rigger source is t he las t e nt ere d
RATE parame t er. The key LED is o n
while INT is selec
t e d .
EXT Selec t s t he ex t er n al t rigger sig n al applie d
t o t he fro nt pa n el TRIG IN BNC co nn ec­
t or. The key LED is o n while EXT is
selec t e d . Whe n t he t rigger mo d e/source
is EXT TRIG, t he d elay be t wee n t he
t rigger i n pu t a nd t he sy n c pulse ou t pu t
will be a fixe d value of abou t 200 n s.
The GATE a nd BURST mo d es will have
a d elay be t wee n t he ex t er n al t rigger a nd
t he firs t sy n c pulse ou t pu t of 1 /(fre­
que n cy se tt i n g x 4) + 20E-9 or (perio d
se tt i n g/4) + 20E-9 .
MAN Selec t s a ma n ual t rigger/ga t e as t he
t rigger source. Wi t h MAN selec t e d , a nd
ei t her t he TRIG, GATE, or BURST mo d es
selec t e d , a t rigger ca n be i n i t ia t e d by
pressi n g t he EXEC key. The key LED is
o n while MAN is selec t e d .
EXEC If MAN t rigger is selec t e d , pressi n g
EXEC ge n era t es o n e t rigger. If t he i n s t ru­
me nt is i n TRIG mo d e, pressi n g EXEC
t riggers a sig n al of o n e cycle i n le n g t h.
If t he i n s t rume nt is i n GATE mo d e, t he
ou t pu t is e n able d as lo n g as t he EXEC
bu tt o n is presse d . If t he i n s t rume nt is i n
BURST mo d e, pressi n g EXEC t riggers a
waveform t ha t is N BURST cycles i n
le n g t h.
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