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I
,-_-'l
)-.
()SCILLATOR
xkoHN-HlrE c<:RPoRATlc>N
1 OH z t o 1 OM H z
TEST C)5CILLAT()R
Model 42OO
t Frequcncytangct lOHzto lOMI{z
r Powor ovlpvl, Vz watt
o l{axlmvm output: l0 volts rms F-'t 1t'o
f..T[l -.-
t Frtqvency rcfponrf,
s Hormonlc dlstortlont O.lVo
0.025 db
rrcl g'
---*
l-Tl
t Amplitvdc stabllltyr 4.027o xultrtrtli ?
t Frcquancy accarccy2 2Vo
t lnlsrnsl lmpcdoacc: 50 ohms
c Avxlllory outpul
e Exlcrnal synchronixallon
The Model 4200 Oscillatoris a low pricedsolid statelabora- T'he 50 ohm impedanceminimizes gjgnallossesdue to re'
tory or productionsignalsourcewith performanceavailable sistiveand capacitiveloading nnd the half watt of power is
onty in units sellingat twice the price' It providesa sinewave essential driving loadswithout overloading.
for
over the rangefrom | 0 Hz to l0 MHZ with ,t w^tl of power Unavoidablecapacitiveloading limits the usefulness any
of
at lessthan 0. I 7o distortion"An infinite resolutiondial and oscillatorwithout low internal impedanceand high power
push-buttonmultiplier provides rapid and continuous fre- outputcapabilities.
quencytuning. A fixed I volt output independent the main output can be
of
The half watt of power over the enlire rangeis outstanding rused synchronizing scopeor as an auxiliaryotltput. For
for a
purposetestoscillator,and this coupledwith an
for a general increasedfrequency accuracy, a synchronizing input is
excellentfrequencyresponse 0.025db, makesthe Model
of available to lock the Model 4200 to a preciseexternalfre-
4200 ideal for meter calibration, responsemeasurements quencysource,
and amplifiertesting. Careful attention to packagingdesign,rtrggedconslruction
Amplitude calibrationof 0.2db accuracyis obtainedby an and useof all silicontransistorsmakesthis unit insensitive
to
8 position push-buttonatienuatorcalibratedin l0db steps. vibration and shock. The Model 4200 with its broad fre-
A continuousoutput control combinedwith the attenuator quency range, flat response, clean signal and low price' is
provides 90db of attenuation. ideallysuited for laboratoryend productionapplications.
,
t
,tt
E2
z
ol 6 trurtt
lpEcrFtcriron
F I .oe I
F.i
F
o
I U
9o
6.2 gpEctFrctTroil
r|lrrT3 ts
t.' \\ I d .or
t.l I
t.l
o
E .ot
rl
t
"et
.ol tor rd tor lor rd
tor tO. toi to.
riEOufrCV{Hrl
FifOUENCY lHrl TVFTCAL TiEOUEf,CY iESPOIISE
tYPrcl|- ol3TonTloll
3
mOdgl 4U00 os'LLAroR
SG'ECIFICATIONS
|rr,qucncy ranget AMPLTUDE StrntI.rrY:
varlsblc. vl. TtuE: ln any periodof one hour or less,within *0.02%' I
l0 He to l0 MHe continuously
any period 20 hours less,
of or within lA'lfo,
(llz)
MUL-npLIER FRreuENcY
vr. Lttr: For a l07o change line voltage, than +0.019
in less 1.r
I t0-100
100-1000 from t0Hzto lOMHz.
l0
100 1000-10,000 w. TEMpEnrTUnT: Withina0.l% perdegrec C.
1,000 10,000-100,000
10,000 100.000-1,000,000 HuM ^NDNotsr: Lessthan 0.0J% of attenuatorretting. tiOn
1oCI,000 10,000,000
1,000,000-
CycLE To CycLE AMpr.truDESt,rntLtl'Y Lcssthan 0.17a.
:
Iist
lrsqocncy Goritrot, Within{'0.025db
Rr.spoxss:
Fneeurr'lcv fromlOHz 500kH:
to
A cinglcturn dirl calibrutcdfrom 9.6 to 104to rcad directly in rising f0.2dbat l0MHz.
to , l{hen
;:
llerte and a sir position pushbuttonmultipllcr. A frequcncy AMpLrruDECoxrnol: Eight position pushbutton attenuator ca
of ! -
vcrnicr drive couplcdto thc dial faeilitatesclosc adjustment ibrated in voltagc and l0db stepsfrom +20 to -50db and a v
*-
frCquency. inffnite resoluiion vernier calibratcd in RMS volts from 0 to ,
and 0 to 10. Attenuator accuracy: +0.2db of pushbutton settin' ing t
Frsqucncy colfbrollqr cccvtacy, t
from l0Hz to l0MHz.
*29o lrom l00Ht !o I MH4 riringto =!% at l0Hz nnd l0MHz. i anc6
Auxlllary ovlpat, I
Froqvancy *|abllllyt
Vortlca: FixedI volt RMS.
vs.TlMe:Shortterm.within =0.002To.|nanypcriodof onc hour
*0.OlTo. lursorxce: 600ohms.
orlctg.within
DC CouroNext: Zero. rgcc
w. Tsutamtune; Wiibin +0,05fo per dogrccC from l0Hz to
lOMHz. Amblcnl ttmpctolura rongat ,eveI
I
0'C to 50'C.
3xl * n al sy n chcanlrollont
allC(
,.,
A 1.5volt pcakto pcakexternal signal overa
will lock Oscillator '' ,
'+O.S%with a rlight change distorlion
in lcrrnfnalsl
range approximatcly
of
andamplitude a sincwt e rynchronizing
for rignal, Mtlx rno Auxtll^nY Ourput: Front only on Bench Model , PrO'
f,car only on Rack Mod-el.
lllala oulputt Extenxrt Svxcgnoutzenox: Rear onty on Bench and Racl 1r
Powm: 9t watt(l0Htto l0MHz). Modcls. t
C aI
Vottrce: l0 voltr rmr opcnclrcuit,! volr ecromJ0 ohmr.
Powcr tcquiromlnltt
Cunrnxt: 100mlllhmfi*r$ rmr. l0J-l2J or 210-2J0voltr, tingle phasc,50-400H2, 30 wltts.
tf O
*.
: Conitrnt 56 66s1; lVo.
IMPEb^NcE
Dlnicndnnr ond Wcfghtr: I.2
Ourprn Crnctnfiv: Dirdt Coupled.
BenchModel 42AO, t" wide,SVt" high, l3%" deep' I I lbs'
E
DC CoMpoNEtrt:Nominel zero volts. At maximumoutput' Rack-mounting
5kgr net, lE lbslSkgsehipping. Model 4200R
drift ir tersthan 2 millivoltsper degree lessthan I millivnlt
C.
19"wide, J14'high,ltVz" decp,l5lbr/6,8kgs 2l lbslg,Jkgl
nct,
for e lt?o linc voliagechangc. Drift reduced proportlonto
in PUt
shipping.
purhbutton reltinS.
ettenuator
DrstonnoN: [,essthan 0.17ofrom l00Hz to l00kHz, risingto Prlcc: $350.00. au:
OSVo f OHe
al and27oat lQMHt.
801
to
Specifcations prlccarc subiect changc
and e,irhoutnotice. SBSHIHtS,gS
580 U'S.4.
MassachusettsCambridge, 02139
Ave., Mass.
- TWx
617/491-3211 710'320-5583
Telephone trm
Prlnlod In 1,.3,A ou
Au
ml
r{
MODEL 42OO
sscTroNI
GENERAL
DESCRTPTION
0.02%. i
I -r-o.01 1.1 I n t r o d ucti o n
'This
manual provides operation and maintenance instruc-
t io n E w i t h de ta i l e d e p e ci fi ca tipns r sqhematic diagr am and par ts
'/o,
lig t for t h e Mo d e l {2 0 0 T e st oecillator , lllustr ated ln Flgur e I.
0 J00k
when the suffix *3rr iE added to the model
number the ossillator
Uator
lb and
*f.nrovided with a front panel suitable for standard rack mount-
rm0!o
0n ing' and l.e identical to the bench model in operation apd perform-
ance I t
,'
Reference to operating rnstructione, sectiotr 2, is
recommended
before this Oscillator ls put into operation. fn the
event the Oscillator ie not functioning or faiLs to meet perform-
ance epoclflcationsr reference should be made to the Maintenance
procedurep Section 4,. Hatutever,
before doing any troubleshooting,
it should be deterrnined tf the normaL adjrretments mentioned in thA
callbrat,lon'and AdJuatmentprocedure, section s, wirl correct the
trouble.
L,2 Deecrlption
rt tt
42A0 The Model 4zaa is an al"l. ellicon,
/9,str
sorid etate, genera1
purpose Test ogcillator that provides a main sLne wave and an
auxiJ.iary sLne wave from r0Hz to l0MHz. rt operates fro:n an ac
souree qf ll5 or 230V, 50-400H2.
The main sLne wav output is variabLe from 0 to 10 vol.ts
rms open-circuit or 5 volts rms across 50 ohms. Maximumpovrer
output ie L/2 watt wtth leeE than 0.Lt harnonic distortion. The
AusiJ.iary output tg a sine xrave fixed at I voLt rms open'circuit.
)
fechnical SummarY
1.3
FrequencY Range
variable
I0Hz to I0!4Hz continuously
TREQUENCY(HZ)
-T6mr-
MULTIPLIER
--I-
i"10 100-1,000
I00 1,000-I0 '000
10 0 0 L 0 , 0 0 0 - 1 0 0r 0 0 o -
. 100;000-r '000 '000
101000
1 0 0' 0 0 0 t r o o or o o o - r or 0 0 o 0 0 0
'
FrequencY Control"
Asingleturndialcallbratedformg.Stol02it,oread
directlyinHertzand'asixpositionpushbuttonmult,ip}ier.A
adjust'ment, of
provides a vernier drive for fine
concentric control
f re q u e n c Y .
FrequencY Callbration AccuracY
t
to t3B at L0Hz and I0MH z '
*.2 * fro m 1 0 0 H 2 to LMHz r ising
'
FrequencY StabiLitY
t0' 002t' In any period of
V $ ,. ti ,me : $ h o rt ter m within
tO'OIt'
one hour or less within
W it' hin t0' 05* per degr ee C fr om I0Hz
V S . ,l e mfl e ra tq re : \
to lOMHzr
voltagel t0.002t.
VS. lilq: F o r a 10* change in line
:r' N o l oacl to full Load ' t 0 ' 005t '
V s. l o 3 q i . I
Ex t e rn a l S Y n ch ro n i za ti on
signa) ' w' iIl lock
A 1 '5 vo l t p e a k to peak exter nal
t.5t with no change in
o s c i l L a t , i on o v r a ra n g e o f appr oximately
signal.
distortion and amplit'ude fot a sine wave synchronizing
See $ection 2.-
Sine Wave OutPut
Pq w e r.! 1 /2 w a tt (10H2 to t0MHz)
I '. vqltage: I0 volts rms open clrcuit
1 0 0 mi l l i amPer es rms
9u {re n t:
i.
rmP.edlnge.r Constint 50 ohms tI*
ggtput.glrcuitv,: Direct coupl'ed
D9 .Compongnt,i Nqminal zelo volts. At maximum output
dr t f t ls l eE a th a n 2 mi l L i vo Lte per degr ee Cr less than l m i} liv ol t
for a lot line voltage ch.ange. Drift reduced in proportion to
pushbutton attenuator eeLting.
I 00Hz
Less than 0.lt fromffi to 100kHz rising
. Distor-!,lon: :;:
to re .51 at lgHzandl% at l6l'tHz, ' :
Nnptttude stabilitY
V$ Time: In a n y per iod of one hour or lees within t0'02t'
In any perlod of 20 h o u r s p r l e e s , w i t h i n t0.It.
Vg Liner For a 10t changein Llne voltage $stt6.olt
f rom l0lla to 10MHz.
I
VS TemPerature: Within *0.1t Per degree C.
\
Hum and Noige: Less than 0.05* of Pushbutton Attenua tor
setting.
vgle.FocYelejNTPJ]t}ds.stabilji.Fv:Iressthan.0.18
{.requqncl'..R99ponqq:.Withint0.02sdbfron10Hzto50okHz,
r i s i n g t o * 0 . 0 5 d b a t 2 M t l za n d t 0 . 2 d b a t l O M H z '
A m p l i t u d e C o n tro l !
Eiqht poeition pushbutton attenuator calibrated in open
- 50db pIUs an infinite
circuit v o l ta g e a n d 1 0 d b steps fr om +20 to
resoLution potentiometer calibrated in RMSvolts from 0 to 3.1"6 and
0 to 10. A tte n u a to r a ccu racy: t0.2db of pushbUtton setting fr om
IO H z t o l oMH z.
uxlliarY out'Put
VoltagelFixedat,lvoltRMsopen.circuit.
I mP e d a n ce : 6 0 0 o h ms
DC CcmPPlent: Zero
Power .Requirementg
105-125 or 210*250 volts single phase, 50-400H2, 30 watts'
Arnbient TemPerature Range
oo0 to 50oC
Terminals
MaJ.nand AuxiJ,J.iary output: BNC connectors on front only
for Be n c h !{o d e l 4 2 0 0 a n d re a r of chassis for Rack Model .4200R'
, Exte rn a L syn ch ro n i zation: BNc connector on r ear chas s i s '
, ,'
only t
Dimenaiong and Weighte
8'I/2" wide, 5 L/4" high,'13 L/2" deep,
Bench Model 4200,
net, 18 l.bsl8kgs shipping. Rack-mounting Model 4200R,
II lbs/Skge
13 L/2" deep, 15 Lba/6.8k9s'iret, 2L ],be/9'5kgs
19" wlder 5 L/2u high,
shlpping.
I
ti
tocArroN OF CONTROI,SAND INDICATORS
r#*-rE-r- 'ar'|:t:!l1;id3
-l
r* trrQutxct TAMIUTUDI
"'#,J)
-rsil "'l'":7"1'"''
-r{f '*tOlu\u'I'
,ll[J """h
:'il $ /,.-t--','=
' '';
:.ft--l
;3-l -2." ',,),
i- ti ,''ti
t{utll?rlcl " 1,
?i,,
0tl
,. ;i,,1,,,1i,,,,\,.1"
Selects one of six fr equency r a nges '
( 1 ) Fre q u e n cy Mu l ti p l i e r:
fro m IOH z to IOMHz'
each
( 2 ) F re q u e n cy D i a l : Var ies output fr equency wit' hin
piif reading multiplied by Frequency
frequenc' ii"g". '
rrl"i'irprrlt is the output frequency
the amplitude of s i gnal
( 3 ) V a ri a b l e A mp l i tu d e contr ol: Adjusts (sJF'@'
applied rJ""*f,i"6;;P;;"il;;;";6; ;
Attenuates the outputr 6f the Teet
( 4 ) Ou tp u t A tte n u a to r:
each'
Oe ci l l .a to r i n 7 steps of L0db
( 5 ) M a i n o u t p u t C o n n e c t o r : P r o v i d e s t h e m a i(onu ;;;; t s i ;;iya ] " for fr'ack unit) '
no tpu qn
ar an impedance Levet or- io or,*r ,
output s i gnal
( 6 ) Auxil-iarY outPut,: Provides IV RMS auxiliar y
;t'-il-irn;"a.n." leveL of ohms,
loo
adjustment of fr equenc Y.
( 7 ) rre q u e n e Y V e rn i e r: Pr ovides a fine
( 8 ) Povrer on and Pilot Light: Switch applies PoweT to the
to indicatL application of pow er .
OEcitlator giot"
"r,it-fi*p
SECTION 2
OPERATING INSTRUCTION$
2. I Ceneral,
i On re ce i p t o f th e Test Oscill"ator , car efully exam ine i t
for any damage that may have occured in traneit. If signs of
damage are observedr file a claim with the transporting agency
immadiately and notify your Krohn-llite Representative or Krohn-Hite
Corporation directly. Do not attempt to use the Oscillator if
extengive danage hae occured and. do not ship the unit back untiL
the cafrlr has inapected it, The instrument may be opened for
:
lnepection witlrout nulllfyinE the Waruanty. i-
nRr after
Rack-Mounting models (designated by a suffix
the model number) mount with four machine screws in the staridard
lgtt rack gp6c6. No epecial brackets or attachrnents are needed.
2.2 Operatlon
Figure identlfieg and dee.cribee the function of alL
the front paneJ. controls, connectors and indicators for the Mode1
d200, !
fo operate the ModeL 4200 proceed as foLlows:
a) Make aBpnopriate power connection as described in Sect,ion 2.4.'
I
b) Turn Power Switch to ON position. Pilot Lfght will glow
indicatlng appl.ication of primary power.
c) SeIEct the deslred frequency with the pushbutton Frequency
Mutttptler and Frequeniy Dial. I'or precise frequency setting,
connect a frequency counter to the Auxil.iany Output and use
the Frequency Vernier for fine adjustment,'
d) Bet the puehbutton Output Attenuator switch to the minimum
volt6go ranga that would include tho desired output voLtage.
e) Connect load to output eonnector'
Adjust Amplitude controL for desired outPut voltage'
f)
2. 3 B x t e r n a l S Y n ch ro n l za ti o n
An External Sync connector on the rear of the chassis
to synchronize the frequency of the Oscillator tQ an
is provlded
connect the external signal to the External $ync'
external eignal.
eonnector and set the oscLlLator dtial to the frequency desired'
input
With an external sine or 6quare wave synchronizlng signal'
peak-to-peak, the OsciLl.ator output wiLL be Locked in
of 1.5 voltE
sigrtal over a locking range of approxi-
frequency to the external
distor tion will not incr ease with an
matel.y tr5t. T h e 0 sci L l a to r
Vvt wtll lr'cr.e13c-h
elne waye synchronizing signal e#o .5t forl-a square wave
external.
eignal. When the Oeclll'ator frequency is the same as the
externaL
algiral frequency, the Oscillator output will be 180'l out
external
th e e xte rn a l s ynchr onizlng eignal.. A t' 5t var iatio n
of p h a s e w tth
frequency wlII vary thelr relative phase by approx-
in the ogclllator
ima t e l Y t 9 0 d e g re e s,
With a ld volt peak-to-peak sine wave external synchron-
the rnaxinum recommendedr the locking range will increase
izing signal,
to 2t and the dietortion wt}} remain the same' With a square wave
the same l"ocking range of 2t will be but
external signal Tbtained
the d i g t o r ti o n will ri se to appr oxim ately Lt'
2 , 4 Line Voltage and Fuses
The oscillator ls nornally wired for operation from an
A - C p o w e r so u rce o f 1 0 5 -1 2 5 voltg, 50 to 400H2 and usee a 0' 5 am per e
slow-blow fuee that is mounted on the rear of the ehassis' It may
by
be modified to operate from an A-C source of 2I0 to 250 volts
removing the two jurnpers between terminals I and 3t and terminals
2 and { of the power tranaformer and connecting a Jumper aeross
il
terminals 2 and 3. A 0 .2 5 a m per e slow- blow fuse should be used
for 2 L O - 2 5 0 vo l t o p e ra ti o n . An identifying tag attached to the
I in e cord. will i n d i ca te w h e n the OscilLator is wir ed for 230 vol t
lin e o P e r a tl 'o n '
| .' Acce sa to th e i n te rior of the OsciLl- ator is accomplished
easily by loosening (not removing) tne two black thumb screws
c e n t e r e d o' n e a ch si d e a t th e r ear of the chassis and then pulling
rl : : ,. ..
.
out the two eide covers. Remove the two eheet metal" Fcrews
holdinE the top and bottorn Covers and remove the covers.
:
' "ii ,.i'...ii-.l,;
I l:t
.{. {foc C?ri
i[o n"tvl
,4ln+
cebr'l'
!ri.tlst I
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r-'- - r,?*v -i.
l,lor.
n',tr
i*t{ a . dt"a {pl
lv
h:u J
il"i T
Fg r0nHt
o5c Apt :(-elol clr6\
,llrb
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irrltrc I I
4r,o \
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rrt9r6
Rrl{A
l/\^,i:,
- tLto'"
rl
i(uLI /0oJL
yvo
t.rr{ |
L 't?F t'*
L---- - -Ii - - - ; R,Ll? eert
lFOl tx
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g5rZ 'c5lg
ll{ .-*qsr
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