Tektronix FG 504

Pr elimi n a
r y P rocedure
1 .
Ensu r e t h at t he correct nominal
li ne selector bloc k
has been
i n stalled on t he line
selector pins on t he power
mo
d ule i n terface boar d , an
d t h at t h e regulati n g
r ange
selecte d i n cl ud es
t h ea p plied li ne voltage .
R efer to t he
I n stallatio
n sectio n of t he powe r module
ma nu al .
2 . En sure t
h
at all
test e q ui p ment is ada
pted to t he
a p plie
d li ne voltage .
3 . I n stall t he F G 504
i nto t h e p ower module
a nd, if
applica b le, i n stall
-t h e TM 500-Series test e qu
ipment i n to
t h e test equi
p me n t p ower module .
4 . Co nn ect t he equi
p me n t und e r test a nd t
h
e
test
e qu ipment to
α suitable line voltage source
. T u r n on all
eq ui p me
n t and
allow at
least an h our
for t he eq uipment to
stabilize .
REV Α A PR 1980
PR OC E D URE
1 . Dial Alignment, Accuracy,
R esol u tio n , and
Fre q ue n cy
R ange
α . Set t
h
e
F G 504 controls as follows
:
H O LD/ RUN pu s hb utton

O u t
FRE Q UEN CY Hz
(STAR T) d ial

40
Cali b ratio n
P roced ur e- F G 504 (S NΒ 040000
& UP)
P erformance
C h ec k
b . Co nn ect t he O U T PU
T
co
nn ector t hroug h α 50
Ω
coaxial cable
a nd 50 Ω termination to t
h
e
i np ut of α
fre q uency
cou n ter .
c . C hec k t h at t h e
F
G
504 output fre quen cy as
measure d by t
h
e
counter is 40 MH z ±6 ο/ο .
d . Set t he MUL TI PL I ER switc
h
to
10 5 setti n g an d c h ec k
t h at t h e cou n ter r eads
4
MHz
±3% .
e . C
h
ec
k t h att he FRE Q UEN CY H zdial setti
n g vsout pu t
freque
n
cy
is wit h in t he sp ecified accuracy
at eac h of t he
r emai n i ng positions of t
h
e
MUL TI PL I ER switc h ( f 3°/ ο of
full sc ε .le, .001 Hz to
4 MH z ; t6°/ ο of full scale,
4
MHz
to
40
M Hz) .
f . Set t he
FRE
Q
UEN CY Hz dial to 20 and c
h
ec
kth att he
o u tput
fre
q
uen cy as indicate d on t h e cou
n ter is wit h in t he
sp
e,- .ified accuracy on eac h range
setti n g of t h e MUL-
TI PL I ER switc h .
g . Set t he FRE Q UEN CY Hz dial to
1 and checkth at t h e
output freq u en cy as i n dicate
d
on
t h e cou n ter is wit h in t h e
sp ecifie d accuracy on eac
h ra n ge setting of t he MUL-
ΤΙ PL I ER switc h .
2 . Stability
43
STO Pd ial
MUL
TI PL I ER
40
α . Set th e F G 504 co n trols
10 6
as
follows :
FRE Q UEN CY VERN
I ER
H O L D/
RUN p us h b u tton Out
(V A R)
Fu lly εω
FRE
Q
UEN CY Hz
T R IGG
ER-FREE RUN
(STA R T) d ial
40
pus hb utton Ι
η
STO P d ial
40
LEVEL control
M idrange
MUL TI PL I ER
10 3
S WEEP pushbuttons
Out
FRE
Q
UEN CYVERN I ER
Square-wave p
us h button In
(V A R)
F ully cw
O
FF S E T co n trol Pu s
he d in a nd
T
R
IGG
ER / FREE RUN
mid r an ge
p u s h butto n FREE
RUN
PHAS E control
M i d ra n ge
LEVEL co n trol
M idrange
S WEEP
D
UR
ATIO N
S WEEP pus h b u tto ns
O u t
rotary switch O FF
W avesha pe pus
h
butto
ns In
VA R iable F
ully
ccw
O FF SET control
In
R IS E and F A LL TIME
PH AS E co
n trol M id r an ge
switc h
F IX ED
S WEEP D UR ATIO N
VA R iable
F ully ccw
switc h
Off
ATT ENUATO R (dB) 0
V A R iable F ully cw
VA R iable
F ully εω
R IS E a nd F A LL TIME
TR IG LEVEL
M i d range
switch F IX ED
SY MME T RY
P us h ed in a nd
midrange
VA R ia b le F ully cw