GDS-820/840

i

EC Declaration of Conformity We GOOD WILL I N STR UMEN T C O., LTD. No. 95-11 , Pao-C hung R d., Hsi n-Ti en Ci ty, Tai pei Hsien, Tai wa GOOD WILL I N STR UMEN T (SUZHOU ) C O., LTD. No.69 Lusha n Road, Suzho u New Di stri ct Jia ngs u, C hi na . decl ares that t he b el ow menti oned prod uct

GDS-820 , G DS-820 S, GDS-820C are h erewith con firmed to co mpl y with the requi re ments set out in the Coun cil Di rectiv e on th e Appro xi mation of the Law of Me mber St at es relati ng t o Elect ro mag netic Co mp atibility (89/336/EE C, 9 2/31/EE C, 93/68/EE C) and L ow Vol tage Equi pment Directiv e (73/23/EEC). For the evalu ation reg arding t he Elect ro mag netic Co mpatibilit y and L ow Voltage Equ ip ment D irective, the following st andards w ere applied

E MC

EN 61 326 -1: El ectri cal equi pment fo r meas urement, control and laboratory use –– EMC requirements (199 7 +A 1: 1998 +A2: 200 1) Conduct ed and Radi at ed E missio n EN 55 011: 19 98 cl ass A

Elect rost atic Discharg e EN 61 000 -4 -2: 1 995 +A1: 1998

Current H ar moni c EN 61 000 -3 -2: 2 000

Radi ated Immunit y EN 61 000 -4 -3: 1 996 +A1: 1998

Voltage Fl uct u ation EN 61 000 -3 -3: 1 995

Elect rical Fast Transi ents EN 61 000 -4 -4: 1 995

------------------------- Surg e Immu nity EN 61 000 -4 -5: 1 995

------------------------- Conduct ed Susceptibility EN 61 000 -4 -6: 1 996

------------------------- Voltage Dips/ Int errupts EN 61 000 -4 -11: 1 994

Safety

Low Vo ltage Equi pment Directiv e 73/ 23/E EC & amen d ed by 9 3/68 /EE C IEC/ EN 6 101 0-1: 2001

GDS-820/840

ii

Declaration of Conformity We GOOD WILL I N STR UMEN T C O., LTD. No. 95-11 , Pao-C hung R d., Hsi n-Ti en Ci ty, Tai pei Hsien, Tai wa n GOOD WILL I N STR UMEN T (SUZHOU ) C O., LTD. No.69 Lusha n Road, Suzho u New Di stri ct Jia ngs u, C hi na .

decl ares th at the bel ow menti on ed p roduct G DS-8 40 S, G DS-840C

are h erew ith co n firmed to co mp ly wit h th e requi rements set out i n the Coun cil Directiv e on t he App roxi mation o f t he Law o f Me mb er Stat es relatin g to El ect ro magn eti c Co mp atibility (8 9/33 6/EE C, 92/31/EE C, 93/6 8/E E C) and Lo w Volt age Equ ip ment Di recti v e (73/ 23/E E C). For the evalu ati on regardi ng the Elect ro mag netic Co mpatibility an d Low Volt ag e E quip ment Di rective, the follo wing s tand ards w ere appl ied:

EMC EN 61326 -1: Elect rical equip men t for measuremen t, co ntrol and

labo rato ry u se –– EMC req ui remen ts (1997 +A1 : 19 98+A2 : 200 1) Conduct ed and Radi at ed E missio n EN 55011: 19 98 class A

Elect rost ati c Di sch arg e EN 61 000 -4-2: 1995+A1: 1 998

Current H ar moni c EN 61000 -3 -2: 2 000

Radi at ed Immunit y EN 61 000 -4-3: 1996+A1: 1 998

Voltage Fl uct uation EN 61000 -3 -3: 1 995

Elect ri cal Fast Transi ents EN 61 000 -4-4: 1995

------------------------- Su rge Immunity EN 61 000 -4-5: 1995

------------------------- Co ndu cted Sus cepti bility EN 61 000 -4-6: 1996

------------------------- Power Frequen cy Magn eti c Fi eld EN 61 000 -4-8 : 1993

------------------------- Voltag e Dip s/ Interrupts EN 61 000 -4-11: 1 994

Safety Low Voltage Equi pment Di recti ve 73/23/ EEC & amended by

93/68/EEC IEC/ EN 6 1010-1 : 200 1

GDS-820/840

iii

1. …………………………………… 1

2. …………………………………………… 6

3. …………………………………………… 8 4. …………………………………………… 11

5. …………………………………………… 17 6. ……………………………………………… 65 7. RS-232 ………………………………………… 66

8. …………………………………………… 69

GDS-820/840

iv

GDS-820/840

1

1.

1-1. :

:

GDS-820/840

2

1-2 .

• 300Vpeak BNC

• BN C

( )

•

•

•

•

1)

GDS-820/840

3

2) AC

• AC ±10%

• :

100 V ~ 240 VAC i nput : T 2 A / 250V

3)

:

4)

GDS-820/840

4

5)

6)

� 2000 m � 0 ~50 80%( )

� � II � 2�

GDS-820/840

5

7)

� : -2 0 to 70 � <80%

GDS-820/840

6

2.

GD S-820/840 : � 150MHz (GD S-840 250MH z)

100MSa/s 25GSa/s E.T � 10ns

� 5.7” L CD G DS-820 GDS-8 20 S GD S-840 SGD S-820C GDS-840C

� 125k 8

� 1 ns/D IV 1 0s/ DIV � 6 � � � 15 Vhi Vio V max V min

Vpp Vav erage Vr ms Vamp

� 15 � 2 � FFT � p rogram mode Go-No Go � � 8 12

� RS-232 USB GP IB( GD S-820S G D S-820 C GDS-840SGDS-840C )

GDS-820/840

7

32 G DS-820 /84 0

Au toset

15RS-232 PC 6

U SB LCDp rogram”

G o-No Go

GDS-820/840

8

3.

ON/ STBY

: :

3-1

GDS-820/840

9

1kH z L CD

2 Vpp 3% 1 0 1 Y

50 mV/ div 10 1

3-2

3-2

GDS-820/840

10

AUTOSET Autos et

1 2 Autos et

3-1 Autoset

Autos et

RU N/ STOP

YT

DC

CH1 CH2

Full DC AC 0V

GDS-820/840

11

4.

GDS-820/840

12

(1 ) * (2 ) T (3 ) (4 ) Ru n/St op (5 ) (6 ) (7 ) (8 ) (9 ) CHI1 CH2 (10) (11) (12) (13) (14) (15) (16) * RUN 500

500 250 ( 300 )

GDS-820/840

13

(1 ) CH1 CH2 P OSITION (2 ) CH1 CH2 (3 ) MATH (4 ) VO LTS/DIV

(1 ) HO RI MENU (2 ) POSITION (3 ) TIME/D IV

GDS-820/840

14

(1) (2) (3)

(1) (2) (3) (4) (5) (6) VA RIA BLE (7) 15 (8) AU TO SET (9) L CD (10) (11) (12)

GDS-820/840

15

(13) L CD HE LP (14)

BNC

(1 ) CH1 CH2 BNC (2 ) (3 ) BNC

GDS-820/840

16

(1) (2) AC (3) GPIB (4) (5) (6) GO/NO GO (7) USB (8) (9) RS-232

GDS-820/840

17

5.

CH1 CH2 MATH

VOLTS/DI V: ( 1-2 -5 ) POSI TI ON : CH1 CH2

L CD “ ” “LCD

GDS-820/840

18

5-2 Positio n

(1) 1 2

C H1 CH2 CH1 CH2

1 2 1 2LED

� Couplin g F1 AC( ) D C ( ) (

� Inv ert On /O ff F2 OnO ff

GDS-820/840

19

� Bw Li mit On/Off F3 On 2 0 MH zO ff

� Prob e 1/1 0/10 0 F4 1 10 100

� Imped an ce 1 M GDS-820/840 1 M

MA TH MATH F1CH1+CH2 CH1-CH2 FFT FFT

� CH1 +CH 2 1 2

5-3 MATH

GDS-820/840

20

� CH1-CH2 1 2 CH1+CH2/ CH1 -CH 2 VA RIA BLE

LCD

� FFT FFT FFT

MATH FFTMATH FFT

� Sou rce CH1/ CH2

� Window Rectangular/ Bl ank man/H anning/ Flatt op Window Rect an gul ar Rect angular

Window Blankman Blank manHanni ng

Window Hanni ng H anni ng

Window Flattop Fl att op

� Position VARIABLE FFT L CD0d B 0d B

1 Vr ms

� Unit/div 20 /10/ 5/2/1 dB F520d B/di v 10dB/ div 5d B/ div 2dB/ div 1d B/ div

GDS-820/840

21

FFT FFT dB H z

CURSOR F1 Source MATH

� So urce MATH FFT

� Hori zontal / / /

VARIABLE L CD

f1:

f2:

: f1 f2

Div:

57

� Verti cal / / /

VARIABLE L CD

M1

M2

: M1 M2

57

GDS-820/840

22

5-4 FFT

(1) (2) 1 (3) (4)

GDS-820/840

23

5-5

TI ME/ DI V TIME/DIV POSI TI ON CH1 CH2

LCD“ �”

“�” MENU

� Main

� Window F2

5-6 TIME /DIV2ns

1 ms 500 sPOSITION

GDS-820/840

24

� Window Zo o m F3

5-6

� ROLL F4200 ms/di v

GDS-820/840

25

� XY CH1 CH2 X-Y

CH1 VO LTS/DIV PO SITION

CH2 VOLTS/DIV PO SITIO N

5-7 XY

RUN 500LCD 2 50

“ ZOO M IN”

GDS-820/840

26

PO SITION L CD

:

: 5 -8 :

5-8:

GDS-820/840

27

2 50k S/s 2 500 :

10 ms

5-9:

GDS-820/840

28

5-10 :

10 ms (5 ms +5 ms)

7

500

5-25-2 7 “Ti me/D IV”

“ TIME/ DIV”7 “Ti me/D IV”

GDS-820/840

29

5-8 5 -2 25 0k Sa/s 5001 00 s/s “ Time/DIV” “ 500ns/s ”

5-11 : 250kSa/s 500ns/s

GDS-820/840

30

MEN U Ty peSource Mod e Slop e/Coupli ng

5-12

Type Edge/ Video/Pul se/ Dela y F1

Type Edg e

So urce

� CH1 CH1

� CH2 CH2

GDS-820/840

31

� E xternal EXT TRIG

� Line AC

� MOD E

� Auto Lev el F3

� Auto250 ms/ DIV

10s/div

� Nor mal

� Single Sin gle Sh ot F3

RU N/ STOP

DC

GDS-820/840

32

:

Trig’d: Trig?:

5-13:

GDS-820/840

33

AU TO: AU TO

5-14: AUTO

SLOPE/C OUPLI NG F5

� Slope : F1

� Coupling DC/ AC F2 DC AC

GDS-820/840

34

� Rej ection LF/ HF/Off F3

� LF F3 LF

50 kH z

� HF50k Hz

� Off

� Nois e Rej On/ Off F4D C

� Previous Menu

F1

� Typ e Vid eo NTSCPAL SECA M pol arity lin e Field1 Field2

� SOU RCE CH1 CH2

� Stand ard NSTC/PAL /SE CAM F3 NSTC PAL SE CA MNSTC 525 6 0HzPAL SECA M 6 25 50Hz

GDS-820/840

35

� Polarity

F4

� Fi eld1 /Fi el d2/line

Fiel d1 F5 1 VA RIA BLEN STC 1 263 PA L/SE CA M

1 313

Fiel d2 F5 2 VA RIABLEN STC 1 262 PA L/SE CA M

1 312

Line F5

5-15 : -

GDS-820/840

36

� Typ e Puls e20 ns 10s

5-1 5-1

20ns ~980ns 20ns 1~4 9

1.0 0us ~9.9 8us 20ns 50~499

10us ~99.9us 20ns 500~4995

100us ~999us 200ns 500~4995

1.0 0 ms ~9.9 9 ms 200ns 5000~4 995 0

10.0 ms ~99 .9 ms 2000 ns 5000~4 995 0

100 ms ~999 ms 20000ns 5000~4 995 0

1.0 0s ~10 .0 s 200000ns 5000~5 000 0

� SOU RCE

� Mod e

� When <>= : F4

When< < VA RIA BLE

GDS-820/840

37

When > > VA RIA BL E

When = = VA RIA BLE

When VARIABLE

� Slope

(1) 5-16

(2) 5-17

GDS-820/840

38

5-16 :

5-17 :

GDS-820/840

39

� Coupling DC/ AC F2 AC DC

� Reject ion LF/ HF/O ff F3

� Previous Menu

� Type Del ay

F2 F3 F4 By Ti me By Event TTL /E CL/U SE R

� By Ti meVA RIA BLE (

1 00ns 1 .3 ms) CH1

CH2

T rig g e r P o int

M a in t rig g er

S ta r t t rig g e r

T r ig g er

S et tim e ( T )

5-18 (T)

GDS-820/840

40

VARIABLE

F4 :

TTL TTL +1 .4 V ECL E CL -1.3 V USER USE R VARIABLE

12 V

: 1

� By EventVARIABLE ( 2 65 000 )

T ri gger Poi nt

M ain tr ig g er

Start tr ig ger

T rigger

Sta rt o f ext erna l t rigg er co unt

1 2

5-19: 3

GDS-820/840

41

VARIABLE

F4 TTL TTL +1.4 V ECL E CL -1.3 V USER USE R VA RIA BLE

12V

: 1

GDS-820/840

42

5-20:

ACQUIR E Samp le Peak-P eak

Av erage

� Sample F1 Samp le

� Peak-Peak Peak-d etect

� Average 2256( 2 ,4 ,8 ,16 ,32 ,6 4,128,256)

500 2 256

(500 )

GDS-820/840

43

500

� Men Leng500 1250 250 0 500 0 1250 0 25000

50000 125 000 5-2500

5-21 5-22

500250 300

GDS-820/840

44

5-21

GDS-820/840

45

5-22

GDS-820/840

46

5-2

500 1250 2500 5000 1250 0 2500 0 5000 0 1250 00

1ns /div ET25G sa/s NA NA NA NA NA NA NA 2.5n s/div ET10G sa/s NA NA NA NA NA NA NA

5ns /div ET5Gsa /s NA NA NA NA NA NA NA 10ns /div ET2.5G sa/ s NA NA NA NA NA NA NA

25ns /div ET1Gsa /s NA NA NA NA NA NA NA 50ns /div ET500 Msa/s NA NA NA NA NA NA NA

100n s/div ET250 Msa/s NA NA NA NA NA NA NA 250n s/div 100MSa /s NA NA NA NA NA NA NA 500n s/div 50MSa/ s 100M Sa /s NA NA NA NA NA NA 1�s /div 25MSa/ s 50M Sa/ s 100M Sa /s NA NA NA NA NA

2.5 �s/div 10MSa/ s 25M Sa/ s 50M Sa/ s 100MSa /s NA NA NA NA 5�s /div 5MSa /s 10M Sa/ s 25M Sa/ s 50M Sa/ s 100MSa /s NA NA NA 10� s/div 2.5MSa /s 5MSa/s 10M Sa/ s 25M Sa/ s 50MSa/ s 100MSa /s NA NA 25� s/div 1MSa /s 2.5M Sa /s 5MSa/s 10M Sa/ s 25MSa/ s 50MSa/ s 100M Sa/s NA 50� s/div 500kSa/ s 1MSa/s 2.5M Sa /s 5MSa /s 10MSa/ s 25MSa/ s 50MSa/s 100MSa /s

100 �s/div 250kSa/ s 500 kSa/ s 1MSa/s 2.5MSa /s 5MSa /s 10MSa/ s 25MSa/s 50MSa/ s 250 �s/div 100kSa/ s 250 kSa/ s 500 kSa/ s 1MSa /s 2.5MSa /s 5MSa /s 10MSa/s 25MSa/ s 500 �s/div 50 kSa/ s 100 kSa/ s 250 kSa/ s 500 kSa/ s 1MSa /s 2.5MSa /s 5MSa /s 10MSa/ s 1m s/div 25 kSa/ s 50 kSa/ s 100 kSa/ s 250 kSa/ s 500 kSa/ s 1MSa /s 2.5M Sa /s 5MSa /s

2.5m s/div 10 kSa/ s 25 kSa/ s 50 kSa/ s 100 kSa/ s 250 kSa/ s 500kSa/ s 1MSa /s 2.5M Sa /s5m s/div 5 kSa /s 10 kSa/ s 25 kSa/ s 50 kSa/ s 100 kSa/ s 250kSa/ s 500kSa/s 1MSa /s 10m s/d iv 2.5kSa/ s 5 kSa/s 10 kSa/ s 25 kSa/ s 50 kSa/ s 100kSa/ s 250kSa/s 500kSa/s25m s/d iv 1 kSa /s 2.5 kSa/ s 5 kSa/s 10 kSa/ s 25 kSa/ s 50 kSa/ s 100kSa/s 250kSa/s 50m s/d iv 500Sa/ s 1 kSa/s 2.5 kSa/ s 5 kSa/s 10 kSa/ s 25 kSa/ s 50kSa/ s 100kSa/s

100m s/div 250Sa/ s 500 Sa/ s 1 kSa/s 2.5 kSa/ s 5 kSa /s 10 kSa/ s 25kSa/ s 50kSa/ s 250m s/div 100Sa/ s 250 Sa/ s 500 Sa/ s 1 kSa/s 2.5 kSa/ s 5 kSa /s 10kSa/ s 25kSa/ s 500m s/div 50Sa /s 100 Sa/ s 250 Sa/ s 500 Sa/ s 1 kSa /s 2.5kSa/ s 5 kSa /s 10kSa/ s

1s/div 25Sa /s 50Sa/s 100 Sa/ s 250 Sa/ s 500Sa/ s 1 kSa /s 2.5kSa/ s 5 kSa /s 2.5s /div 10Sa /s 25Sa/s 50Sa/s 100 Sa/ s 250Sa/ s 500Sa/ s 1 kSa /s 2.5kSa/ s

5s/div 5Sa/ s 10Sa/s 25Sa/s 50Sa/s 100Sa/ s 250Sa/ s 500 Sa/ s 1 kSa /s 10s /div 2.5Sa/ s 5Sa/s 10Sa/s 25Sa/s 50Sa /s 100Sa/ s 250 Sa/ s 500 Sa/ s

GDS-820/840

47

DI SPLAY

250 Typ e Vecto r/D ot

� Typ e Vecto r F1

� Typ e D ot

� Accumu l ate On/O ff

� Refresh F3

� Co ntrast 0 1 00% VARIABLE LCD

� F5

X Y

GDS-820/840

48

U TILI TY

� Pri nter Menu G DS-8 20/840 LCDF1

Type HP Hewl ett -Packard LaserJet H ewlett- Packard Desk Jet

HA RD COPY USB USB GDS-820/840 GDI

GDS-820S G DS-8 20C G DS-840 S G DS-8 40C

� Interfa ce Menu RS-232 U SBG D S-820 GPIB F1 GPIB

GDS-8 20 S GDS-820C G DS-840S GDS-84 0C

RS232 Type RS232 RS232 Baud ra te 24 00 4 800 9 600 192 00 38 400

STOP bi t 1 2 Parity Odd E v en N on e Previous Menu

8

GDS-820/840

49

USB

Type USB USB GW USB

Previous Menu

G PIB Type GPIB GPIB Addr 0 30 GP IB Previous Menu

�

� Lang uag e Menu

� More F5 utilit ies

GDS-820/840

50

� Self Cal Menu

� Sys tem I nfo rm LCD

� Go-No Go Menu Go -No Go

1. 2. G o-No G o BNC

Go-No Go BNC

GOOD

NO GOOD 10 s BNC

Go-No Go BNC

Tempalte Edi t F1

Tempalte Max/ Mi n Save/ Recall A B“ Go-no Go” 61

Template Ma x Sav e/ Recal l RefA

Template Mi n Save/Recall RefB

GDS-820/840

51

So urce R efA/ RefB (RefA RefB)

Posi tion

Sa ve F4

Previo us Menu

Templ ate Auto Go-No Go

(1): (RefA RefB)0.4 % 40%

5-23:

GDS-820/840

52

Source C H1/ CH2 1 2 Go -No Go

Tol erance %4% 40%

Save & Crea te F4 Ref ARefB

Previous Menu

Source CH1 CH2

Viola ti ng Sto p/ /Co nti nue/

Viola ti ng Sto p N O G OO D Go-No Go

Viola ti ng NO GOO D Go -No

Go

Viola ti ng Co ntinue NO GOO D Go-No Go

Viola ti ng NO GOO D Go-No

Go

GDS-820/840

53

: No Go When /

:

G o-No Go On/ Off Go -No Go

Ra tio G o-No Go

Go -No Go

No Go When /

No Go W hen

No Go

No Go W hen

No Go

Previo us Menu

GDS-820/840

54

PR OG RA M P rog ram mod e

“ Program mo de”

5-24 : PR OG RA M “ Prog ra m”

GDS-820/840

55

� Edit F1

� St ep 1 -1 5 VIA BL E1 15

� Item Memory/ Menu/ Ti me

It em Me mory 1 ~15(M1~M15 )VA RIA BLE

It em Men u L CD“Program mode”VA RIA BLE

It em Ti me 1 99 Ru n/Stop

Sav e F5

� Play

� Cycl e 1 99 99

� From/ To

� St art F5

Aut o test /St op “ Progra m”

GDS-820/840

56

5-25: “Progra m”

(1 )

(2 )

5-25 1 6 10 11(M1)

3

6 (M1 ) Auto tes t/ Stop

GDS-820/840

57

CU RSORT1 T2 L CD V1

V2 (

5-2 6)

� Source 1/2 F1

Hori zo ntal / / / F2

VA RIA BLET1 T2

Hori zo ntal T1

Ho ri zo ntal T2

Ho ri zo ntal T1 T1

Ho ri zo ntal

LCD T1 T2 T1 T2 f T1 T2

GDS-820/840

58

Verti cal / / / F3

Verti cal V1

Verti cal V2

Verti cal V1 V2

Verti cal VA RIA BLE

V1 V2 VA RIA BLE

L CD V1

V2 T1 T2

5-26

GDS-820/840

59

MEASUR E

F1 F5CH1 CH2 15

� Vpp Vmax- Vmin

� Vamp Vhi -Vlo

� Vavg

� Vr ms

� Vhi

� Vlo

� V max

� V min

� FreqHz

� Peri od

� Riseti me 10 % 90 %

� Fallti me 90 % 10 %

� +Width 50 %

GDS-820/840

60

� -Width 50 %

� Duty Cy cle =/ 1 00 %

5-27

GDS-820/840

61

SAVE/RECALL 1 2

Go-N o Go15

P rog ram Mode F1 Setup / wav eform

/

Setup 15

� Default Setup

� M01 M15 F3

� Save

� Recall F5

Wa vefo rm VARIABLE

� Source CH1/ CH2/ MATH F2 CHI1 CH2

� Trace RefA/ RefB 1 2 AB

� Save Trace RefA/ RefB F4

GDS-820/840

62

� Trace O n/Off L CD 1 2

5-28 : A B

AUTO TEST/STOP

HAR DCOPY L CD

GDS-820/840

63

HELP ELP H ELP

HELPHELP VA RIA BLE HELP

HELP

5-29 : HELP

AU TOSET

11

� Undo Autoset F5 A utos et

RU N/ STOPRUN STOP

GDS-820/840

64

ERASE

MEN U ON/OFF10 12

5-30: 12

GDS-820/840

65

6

GDS-820/840

66

7 RS-232

D B 9 -Pin RS-23 2RS-232 RS-232

Pin3 Pin2 RS-232

RS-232 GDS-820 S GDS-820 C GDS-84 0S

G DS-8 40C

Pin GDS-820/840 RS-232

1. 2. R D inpu t 3. T D output 4. 5. GND 6. 7. 8. 9.

7-1 GDS-820 RS232 Pi n

GDS-820/840

67

DB9 DB9

GDS-820/GDS-840

series(DB9, DTE)

Computer(DB9, DTE)

Pin2

Pin3

Pin2

Pin3

Pin5Pin5

7-2 DB9 DB9 RS232

2 3 4 5 6 15 m PC 7 PC 8

COM RS2 32

1 RS232 2 RS232

3 4

GDS-820/840

68

RS232

RS232

*idn?

GW GD S-820 s eries nu mb er V.1.0 .9

RS232

GDS-820/840

69

8

+20 +3030 0 +50

1 (CH 1) 2(CH2) 2 mV/div 5 V/ div

(3 % 0.05 div × Volts/di v +0.8 mV)

GDS-820 DC 150 MH z (-3dB) GDS-840 DC 250 MH z (-3dB) AC GDS-820 :10 Hz 150 MHz (-3dB) GDS-840 :10 Hz 250 MHz (-3dB)

GDS-820 <2.3 ns GDS-840 <1.4 ns

A C DC&G ro und

GDS-820:1M� ±2 ~22 pF GDS-840: 1M� ±2 ~16pF

300V(DC+A C ) CAT II

CH1-CH2 CH1 +CH 2 FFT

GDS-820/840

70

2 mV/di v 50 mV/div 100mV/div 5 00 mV/div 1 V/di v 5 V/ div

±0.5 V ±5V ±50 V

20MHz -3d B

CH1 CH2 LINE EXT

Auto -Lev el AU TO NO RMAL SIN GL ETV Ti me-d el ay Event -d elay E dge Pulse Width

100ns 1 .3 ms

2 6 500 0

(U SE R ) ±12 V

AC,DC,L Frej , HFrej , No ise rej

D C 2 5 MH z 25MHz 15 0 MH z 25MHz 2 50MHz

0.35div 3 .5 mV GD S-820 1.5div 15mV GD S-840 2di v 20 mV

TV TV 0 .5di v

DC ±1 5 V AC ±2 V

GDS-820/840

71

DC 30MHz 30 MH z 150 MH z 150 MHz 2 50 MHz

~ 50 mV ~ 100 mV ~ 150 mV( G DS-840

1 M� ±2 , ~ 22p F (GDM-840: ~16p F)

300V D C+A C CAT II

:

1ns/di v 10s/d iv (1-2-5 )

Main , Windo w, Window Zoom, Roll, X-Y

0.01 %

20div 1000 div

X-Y

X CH1

Y CH2

±3 100 kHz

100 MSa/s

25G Sa/s E.T

8

/ 125k

GDS-820/840

72

125k

10ns

Sample, Peak Det ect , Av erage, A ccu mul at e

10ns (50 0ns/d iv 10s/div ) 2 4 8 16 … 2 56

Vpp ,Vamp,Vavg ,Vr ms ,Vhi,Vlo,V max,Vmi n

V T

1/ T T Hz

6

2 %

Autos et VOLT/ DIV SE C/DIV

Save/ Racall 15

Waveform Trace Save/ Recall

GDS-820/840

73

GDS-820, GD S-82 0S, GD S-84 0S 5.7 in ch LCD (3 20* 240 )

GDS-820C, GDS-840 C 5.7 inch LCD (320 *24 0)

8 ×1 0 8 ×1 2

100V~240 V A C

47Hz~63 Hz

45W 6 5 VA

2A 250 V

25Pin IBM P C

HP PCL5 HP

@15 0×15 0dpi @15 0×15 0dpi

USB USB 1.1 &USB 2 .0

RS-232 9Pin DTE RS-232

GPIB IEE E48 8 .2

GDS-820/840

74

2 Vpp 3 %

2

310 142 254

~ 4 .1 kg

0 ~ 50 20 ~ 70

80 R.H @ 35 80 R.H. @ 70