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
MEIRÛNEX 4.
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