Tektronix FG 504

LEVEL control

M i d range
S WEEP pus hb utto ns

FREE RUN
W
aves
h
a pe pus
h
butto
n
s

Sq
uare wave
O FF SET cont r ol

M idra n ge
PH AS E co n trol

M i d range
S WEEP D UR ATIO N
switc
h
0 .1 ms
V A R iable

Fu lly ccw
R IS E an d F A LL TIME
switc h

F IX E D
V A R iable

F ully ccw
ATTENU ATO R (d B )

O dB
V A R iable

F ully cw
T R IG LEVEL

M i d ra n ge
SY MME TRY M idra n ge
b . Connect an unterminated coaxial cable from t h eL I N
S
WEEP O
U
T
PU
T j ac k
to
t h e oscillosco pe vertical input .
V erify t h at t he outp ut sig n al varies from 0V to 10 V f5°/ ο
from 100 seco nds to 1 ms and ±10 ο /ο from 1 ms to 0 .1 ms .
c .
Pr ess t he TR
IG
S WP b utto n i n . C heck
for
on e swee p
eac h time t he MAN button is pressed . Connect α 100 Hz
si n e wave sig n al from t
h
e fu n ctio
n
ge n erator to
t h
e
S WEEP TR IG I NPU T j ack an d a dj ust t h e outp ut sig n al to
1 V ρ - p . V erify t h at t he F G 504 swee p ge n erator can be
triggered on t h is waveform by ad j usting t he TR IG LEVEL
kn ob .
6 . Output Amplitude, F lat n ess, Offset, and
Attenuato r Accuracy
α . Set t
h
e F G 504 co n trols as follows :
Calibration P roced u re- F G 504 (S
NΒ 040000 & UP)
P e r forma nce C h ec k
ATTENU ATO R (dB)

0
VA R ia b le

F ully cw
T R IG LEVEL

M idra n ge
SY MME T R Y M i d ra
n
ge
b .
Co
nn ect t he output of t he F G 504 to t he do cou p led
vertical i np ut of t he oscillosco p e t h ro ug h α 50 Ω unter-
minate d cable . C heck t h at t heoutput is at least 30 Vρ - ρ on
all MUL TI PL I ER ranges . V erify t h at t h e
ATT
ENU
ATO R
V A R iable co
n t
r ol
will r e d uce t he out p ut to 3 .0 V ρ - p .
R et u r n t he VA R iable co n trol to fully cw . Con n ect α 50 Ω
termination at t h e scope end of t h e 50 Ω out p ut cable .
V erify t h at t h eoutput am p lit ud e varies less t h an ±6 ο
/ο
on all
ranges for all t h ree wave s
h
apes .
V erify t h at t he output
am
p lit
u de
varies less t han ±11 ο / ο from 40 kH z to 40 MHz
(±1
d B) . V erify t h at t he t h ree wave s h apes h ave t
h
e same
amplitu d es, ±0 .5 d
B
at 10
kH z .
Set
t h e ATTENU ATO R to
eac h step an d verify t
h
at
t h
e
accuracy at eac h ste p is
wit h i n ±0 .5 dB p er d ecade . R emove t he 550 Ω termi n a-
tio n . W it h the ATTENU ATO R at -50 d B, pull out t
h
e
O FF SET co n trol an d vary it from one end of
rotation tot he
ot h er .
V erify t h at t he output ch a n ges from +7 .5 V to
-7
.5
V wit h the out p ut unterminated .
7 . Out p
ut W aveforms (Tria n gle Symmet r y, Sine
W ave Distortion , Sq uare W ave Rise and F all Time)
α . Set t he F G 504 con trols as follows :
b . Set t he oscilloscope
controls to display two cycles of
t he waveform across t he graticule . U sing t he delayed
45
H O LD/ RUN p ush b u tto n RUN
FRE Q UEN CY Hz
(STA R T) dial 10
STO P d ial 40
MUL TI PL I ER 10 5
FRE Q UEN CY
VERN I
ER
(V A R) F ully cw
T R IGG ER / FREE RUN
pus h button FREE RUN
LEVEL co n trol M idrange
S WEEP pus hb utto ns Out
W aveshap e pus
h
buttons Square
W
ave
O FF SET con trol M idrange
PH AS E control M i d ra n ge
S WEEP D UR ATIO N
switc
h
O
FF
V A R iable F ully ccw
R IS E an d F A LL TIME
switc h F IX E D
V A
R
iable
F ully
ccw
H O LD/ RUN push butto n RUN
FRE Q UEN CY Hz
(STA R T) dial
10
STO Pd ial 40
MUL TI PL I ER 10"
FRE Q
UEN
CY
VERN I ER
(V A R) F ully cw
T R IGG ER / FREE RUN
pushbutton FREE
RUN
LEVEL control
M i d range
S WEEP pus
h
b
u ttons Out
W avesh ape pus h butto ns Triangle In
O FF SET con trol M idra
n
ge
PH AS
E
co
n trol M idrange
S
WEEP D UR ATIO N
switc h O FF
VA R iable F ully cw
R IS E a n d F A LL TIME
switc
h F IX E D
VA R iable F ully ccw
ATT ENUATO R (dB) O dB
VA R iable
F ully cw
T R
IG
LEVEL M i d ra nge
SY
MME TR Y M i d range