A M /F M Signal Generator Type PGS-21

• digital freq u en cy re ad o u t
- freq u en cy range

64 kH z - 130 MHz

- o u tp u t voltage

64 kH z - 30 MHz range

1

fXV -

1 V

30 M H z - 130 MHz range

1 M V - 0 .5 V

- AM and FM m o d u la tio n
- in te rn al m o d u la tio n freq u en cies

4 0 0 H z, 1 kH z and 4 kHz

- ex tern al AM m o d u la tio n

2 0 Hz - 2 0 kH z

• e x te rn al FM m o d u la tio n

2 0 H z - 6 0 kHz

• m ax im u m m o d u la tio n d e p th

90%

- m axim um d e v ia tio n

1 0 0 kH z

- co m p o site ste reo m o d u la tio n cap ab ility

• digital freq u e n c y m easu rem en t o f e x te rn a l signals

in 20 H z - 1 3 0 MHz range

APPLIC A TIO N S
T h e ty p e PG S—21 Signal G e n e ra to r is a lab o rato ry -g rad e in stru m e n t p ro v id in g a so u rce o f sinusoidal v o ltage,am plitude- or
fre q u e n c y -m o d u la te d , w ith a d ju stab le am p litu d e an d fre q u e n c y . T h e o u tp u t v o ltag e can be am p litu d e-m o d u lated in a
freq u e n c y range fro m 20 H z to 2 0 kH z, o r freq u e n c y -m o d u la te d in a freq u e n c y range fro m 20 H z to 6 0 kH z, fro m an

ex tern al g e n e ra to r. T he o u tp u t can also be freq u e n c y -m o d u la te d b y a c o m p o s ite stereo signal.

T h e in stru m e n t en ab les e x te rn al signal freq u e n c y to be d ig itally m ea su re d in th e range fro m 20 Hz to 130 MHz.

T h e P G S -2 1 G e n e ra to r is in te n d e d fo r testin g and alig n m en t o f e le c tro n ic circuits in th e freq u e n c y range fro m 64 kH z to

130 MHz.

SPEC IF IC A T IO N S

F re q u e n cy

R ange

A ccuracy

S tability

short-term
long-term

Voltage
O u tp u t voltage / o p e n circu it/
stepw iselv adjustable in 10 db steps,

and c o n tin u o u sly , w ith in each

10 dB range,

in freq u en cy ranees

64 kHz - 30 MHz

30 M H z - 130 MHz

O u tp u t voltage settin g accuracy

w hen ad ju sted fo r m ete r FSD

64 kHz - 30 MHz
30 M H z - 130 MHz

S ource im pedance
VSWR for voltages a b o v e 100 mV
V oltage level change w hen tuning
from 1 MHz referen ce
N onlinear d isto rtio n

AM M O DULATION

R a te d m o d u la tio n d e p th

M odulation d e p th setting accuracy

E x tern al m o d u la tio n frequency
range

M axim um m o d u la tio n frequency
to carrier freq u en cy relatio n

C arrier frequency

64 kHz - 125 kHz

125 k H z - 250 kHz

250 k H z - 5 0 0 kHz
0.5 MHz - 1 MHz

1 MHz - 130 MHz

M odulated o u tp u t signal envelope
d isto rtio n

FM M O DULATION

R ated d ev iatio n range

F r e q u e n c y

MHz

65-130

32-65

64 kHz - 130 MHz in 11 subranges

0,00591

— 0 .0 1 % per 15 min

0,1% per 3 hours

1 AtV - 1 V

1 /¿V-0,5 V

1 dB - 1

(JV

1,5 dB - 1,5 MV

50 O hm s

< 1 ,5

< 1 dB
< 5 %

5 - 90%

— 10% w ith respect to F S D

20 H z - 2 0 kHz

M axim um m o d u la tio n freq u en cv

3 kHz
5 kHz

10 kHz
15 kHz

20 kH z

< 6% at 80% m o d u la tio n d e p th

I S

- 1 0 0 / K

kHz

K = fa c to r d e p e n d e n t o n freq u en cj

subrange selected

16-32

8-16

4-8

2-4 1-2

?-2

i-3

?-4

->-5 7-6

F re k'HznCy

5 0 0 -1 0 0 0

250-5 0 0

125-250

64-125

K

i - 7

t

9

i - l O

D ev iatio n setting accuracy
E x tern al m o d u latio n frequency
range
M axim um m o d u la tio n frequency-

- carrier freq u en cy relation
C arrier freq u en cy relatio n

64 kHz - 125 kHz

125 kHz - 250 kH z

250 k H z - 5 0 0 kHz

0,5 MHz - 1 MHz

1 MHz - 2 MHz
2 MHz - 4 MHz

4 MHz - 8 MHz

8 MHz - 130 MHz

M odu latio n d isto rtio n
M odulation V oltage G en erato r
M o d u latio n frequency
F re q u e n cy accuracy

1 5 % o fF S D

20 Hz - 60 kH z

M axim um m o d u la tio n freq u en cy

2 kHz

4 kHz

7 kH z
10 kHz
14 kHz
20 kHz
30 kHz
60 kHz

< 2% w ith m ax im u m d ev iatio n

S tereo M odulation
S tereo e n co d e r drive modes:
- Lf. signal from in tern al o r e x te rn al g e n era to r applied to L channel in p u t,

- Lf. signal fro m in tern al o r e x te rn al g e n era to r applied to R channel in p u t,

- Lf. signal fro m in tern al o r e x te rn al g en erato r, having identical freq u en cy ,

level and phase, applied to b o th L- and R channel in p u ts sim ultaneously,

- Lf. signal from internal o r e x te rn al g en erato r, having identical freq u en cy

and level b u t o pposite phase, ap p lied one to L-, th e o th e r to R channel
in p u t sim ultaneously,

- l.f. signals fro m e x tern al g en erato r, having d iffere n t frequencies, applied

to L- and R channel in p u ts,

- 19 kHz p ilo t carrier signal

Pilot signal freq u en cy
Pilot freq u e n c y accuracy
M axim um d e v ia tio n by stereo
signal
D ev iatio n b y pilo t signal
C hannel sep aratio n a t 1 kHz
S purious E ffects
A m p litu d e m o d u la tio n effect

on freq u en cy
F req u en cy d e v ia tio n w ith
m o d u latio n sw itched o ff

19 kHz

2 Hz

50 kHz.

5 kHz -

35 dB

15%

F req u en cy d e v ia tio n due to
the presence o f AM

A m p litu d e m o d u la tio n w ith
m o d u la tio n sw itched o ff
A m p litu d e m o d u la tio n d u e to
the p resence o f FN
R F ra d ia tio n . A voltage induced
in coil, 2 tu rn s 25,4 m m in
d iam eter, spaced by 25,4 mm
fro m the g e n era to r, m easured
w ith a m ic ro v o ltm e te r having
50 O h m in tern al resistance

w ith freq u e n c y c o u n te r on
w ith freq u e n c y c o u n te r o ff

E x tern al G e n e ra to r F req u en cy
M easurem ent
M easurem ent n n g c

G ate tim e

M easurem ent accuracy

In p u t voltage
100 H z - 5 MHz

20 Hz - 130 MHz

S tan d ard /c lo c k / freq u en cy

S tan d ard freq u en cy sta b ility

F re q u e n cy display
A m b ien t T e m p e ra tu re R ange
S upply
V oltage
Pow er co n su m p tio n
D im ensions

/incL p a rts p ro tru d in g
bey o n d c ab in et/

Weight

< 0,005%

< 0 ,001% o f m inim um

subrange frequency

< 0 ,0 2 % o f m inim um

subrange freq u en cy

< 2%

< 5 %

< 3 /J V

< 1 MV

f = 2 0 H z - 1 3 0 MHz

t =1 ms, 10 ms, 100 m s, 1 s

e

/au to ran g in g

+

. , + 1

st

x f x -------

'g

fs t = stan d ard freq u en cy

A f

= relativ e e rro r o f standard

f t

freq u en cy g en erato r

100 mV - 1 V

300 mV - 1 V

1 MS f

5-10’ per 24 hours

7 - segm ent

+5

+ 2 0

+ 4 0 ° C

220V - 10%; 50 Hz

60 VA

height 142 mm

w idth 4 4 6 m m
d e p th 455 mm

15 kg

4 00 Hz,

± 3%

1 kHz, 4 kH z

T he m an u fa ctu re r reserves rights fo r changes in a b o v e sp ecifications a fte r d e v elo p m en t o f p ro to ty p e s.

M a n u fa c łu r t r :

Z a k ła d O p r a c o w a ń i P ro d u kcji

z

o

p

a

n

A p a ra tu ry N a u k o w e j

Z O P A N

03*30 1 W a r « a w a ,

ul. S ła lin g ra d z k a 29/31

4.

MEIRÛNEX

TT

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Ltd.