PEAKTECH 4046 Instructions

DDS Arbitrary

Waveform Generator

Operation manual

PeakTech

®

4046

1. Safety Precautions

This product complies with the requirements of the following European Community
Directives: 2014/130/EU (Electromagnetic Compatibility) and 2013/35/EU (Low Voltage)
as amended by 2014/32/EU (CE-Marking).
Overvoltage category II; pollution degree 2.

To ensure safe operation of the equipment and eliminate the danger of serious injury due
to short-circuits (arcing), the following safety precautions must be observed.

Damages resulting from failure to observe these safety precautions are exempt from any
legal claims whatever.

* The instrument must be set up so that the power plug can be removed from the

socket easily.

* Prior to connection of the equipment to the mains outlet, check that the available

mains voltage corresponds to the voltage setting of the equipment.
* Connect the mains plug of the equipment only to a mains outlet with earth connection.
* Do not place the equipment on damp or wet surfaces.
* Do not cover the ventilation slots of the cabinet to ensure that the air is able to

circulate freely inside.
* Do not insert metal objects into the equipment by way of the ventilation slots.
* Do not place water filled containers on the equipment (danger of short-circuit in case

of knock over of the container).
* Do not exceed the maximum permissible input ratings (danger of serious injury and/or

destruction of the equipment).
* To avoid electric shock, disconnect power to the unit under test and discharge all

capacitors before taking any resistance measurements.
* Check test leads and probes for faulty insulation or bare wires before connection to

the equipment.
* To avoid electric shock, do not operate this product in wet or damp conditions.

Conduct measuring works only in dry clothing and rubber shoes, i. e. on isolating

mats.
* Comply with the warning labels and other info on the equipment.
* The measurement instrument is not to be to operated unattended.
* Do not subject the equipment to direct sunlight or extreme temperatures, humidity or

dampness.

2

* Do not subject the equipment to shocks or strong vibrations.
* Do not operate the equipment near strong magnetic fields (motors, transformers etc.)
* Keep hot soldering irons or guns away from the equipment.
* Allow the equipment to stabilize at room temperature before taking up measurement

(important for exact measurements).
* Do not input values over the maximum range of each measurement to avoid

damages of the meter.
* Use caution when working with voltages above 35V DC or 25V AC. These Voltages

pose shock hazard.
* Periodically wipe the cabinet with a damp cloth and mid detergent. Do not use

abrasives or solvents.
* The meter is suitable for indoor use only
* Do not operate the meter before the cabinet has been closed and screwed safely as

terminal can carry voltage.
* Do not store the meter in a place of explosive, inflammable substances.
* Do not modify the equipment in any way
* Do not place the equipment face-down on any table or work bench to prevent

damaging the controls at the front.
* Opening the equipment and service – and repair work must only be performed by

qualified service personnel

* -Measuring instruments don’t belong to children hands-

Cleaning the cabinet

Prior to cleaning the cabinet, withdraw the mains plug from the power outlet.
Clean only with a damp, soft cloth and a commercially available mild household cleanser.
Ensure that no water gets inside the equipment to prevent possible shorts and damage
to the equipment.

3

2. Quick Start

If it’s the first time for y ou to use the generator or you have no time to read the
guide carefully, you can get the basic operation as soon as you finish browsing
the chapter1. If more complicated functions are needed or meet difficulties in
operation, please read Features and Functions in chapter 3.

2.1 Prepare the waveform generator for use

2.1.1 Check the list of supplied items

Verify that you have received the complete unit according to the packing list. If
you find package damaged badly, leave it until the instrument passes
performance test. If anything is missing, please contact sales office

2.1.2 Connect the power

Turn on the instrument only the following conditions are met,

Power: AC 100 ~ 240 V
Frequency: 45 ~ 65 Hz
Power consumption: < 30VA

Temperature: 0 ~ 40°C Humidity: <80％
Plug the power cord into an AC100 ~240V socket with ground wire and press On
/Off switch below socket on rear panel. Then blinking power button on front
panel indicating the generator well connected with power but still in off state.
Only press power button, the generator initializes itself and obtains the default
parameters, outputting continuous Sine under normal working state, with
signal’s parameters displayed.

4

Warning: In order to ensure the security of the operator, use triple- core power
socket with ground wire.

5

3. Front/Rear panels at a Glance

Front panel

1. Display 2. Function Keys 3. Numeric Keypad 4. Knob 5. On/Off Switch

6. Menu Operation Softkey 7. CHA/CHB Output 8. Sync Connector

9. USB Port 10. Arrow Keys

6

Rear panel

1. Counter 2. External Clock Input 3. Internal Clock Input

4. Modulate Input / Trig Input / Output of CHB

5. Modulate Input / Trig Input / Output of CHA

6. LAN port 7. Fan 8. Power Socket

9. On/Off Swtich 10. USB Device

7

4.1 Reference

4.1.1 Keypad description

There are totally 32 keys in the front panel, of which, 26 keys with certain definition
embraced with【】.
10 function keys:

【Continue】【 Modulate】【 Sweep】【 Burst】【 Dual Channel】【 Counter】【 CHA/CHB】
【Waveform】【Utility】【Output】.

While, 【Utility】key is used to set common parameter and 【Output】key is used to enable
or disenable output port.
12 keys in numeric keypad:

【0】【1】【2】【3】【4】【5】【6】【7】【8】【9】are used to enter numbers.
【.】is used to enter decimal point and 【-】is only available to enter allowed minus.

Four arrow keys:

【<】【>】were used to move the cursor left or right.
【∧ 】【∨ 】were used to increase and decrease the displayed number when setting

frequency and amplitude.
The balance 6 keys under display are menu operation softkeys, embraced with 〖〗 and
used to select menu or unit.

4.1.2 Display description

The display screen is divided into three sections:
Top section: output waveform
Middle section: parameters display of Frequency or Amplitude or Offset etc.
Bottom section: display of menu or unit.

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1. Voltage Scale 2.Waveform 3. Amplitude 4. Time Scale

5. Output Information 6. Working Parameters 7. Operation Menu

4.2 Number Entry

4.2.1 Use the keypad to enter numbers and softkey to select unit.

Please use 【<】key to cancel mistake enter before select unit key. Don’t forget to select
unit key after finishing entering number. Only this, the enter data can come into effect.
Press 〖Cancel〗softkey in unit menu to cancel the enter data that has come into effect.

4.2.2 Use the knob and arrow keys to modify the displayed number.

Use the arrow keys 【<】 【>】to move the cursor left or right. While, rotate the knob to

change digits. (clockwise to increase and the inverse to decrease). It’s not necessary for

user to select unit if entering number by this way.
Users can enter numbers by one of three mentioned methods based on different
applications.

4.3 Basic Operation

4.3.1 To select the output channel

Press 【CHA/CHB】key to open desired channel configuration screen. Note that fonts of
channel name, mode and waveform were indicated by different color (yellow for CHA
and blue for CHB). Use softkey together with knob or numeric keypad to set the
waveform and parameters of desired channel. Enable or disable the output signal of
desired channel by pressing 【Output】key.

4.3.2 To select a waveform

Press 【Waveform】key to see the first page of the option list Sine, Square, Ramp, Pulse,
Arbitrary and Noise. If select Arbitrary option, there are some operations for arbitrary
waveform. Select one desired waveform to see the waveform diagram under Continuous
mode.

9

Press〖Waveform〗key again to back to current menu.

4.3.3 To set duty cycle

For example, specify a duty cycle of Square to 20%.
Press 〖Duty Cycle〗softkey and then set the duty cycle to 20% using the numeric keypad
or the knob and arrow keys 【<】【 >】. If you use the keypad, press 〖%〗softkey to finish
entering the value.

4.3.4 To set Frequency

For example, specify a frequency to 2.5kHz.
Press 〖Freq/period〗softkey and then set the frequency to 2.5kHz using the numeric
keypad or the knob and arrow keys 【<】【 >】. If you use the keypad, press 〖kHz〗 softkey
to finish entering the value.

4.3.5 To set Amplitude

For example, specify amplitude to 1.6Vrms.
Press 〖Ampl/High〗softkey and then set the amplitude to 1.6Vrms using the numeric
keypad or the knob and arrow keys 【<】【>】. If you use the keypad, press 〖Vrms〗
softkey to finish entering the value.

10

4.3.6 To set offset

For example, specify an offset to -25mVdc.
Press 〖Offset〗softkey and then set the offset to -25mVdc using the numeric keypad or
the knob and arrow keys 【<】【>】. If you use the keypad, press 〖mVdc〗 softkey to
finish entering the value.

4.3.7 To output an AM waveform

A modulated waveform consists of a carrier and a modulation waveform. In AM, for
example, you want to output an AM waveform with 80% modulation depth, the carrier will
be 10kHz and the modulation waveform will be a 10Hz Ramp wave.

1. Select AM
Press 【Modulate】key and then select 〖AM〗softkey by pressing the〖Mod Type〗softkey.

2. To set Carrier frequency

Press〖Carrier〗to enter into the parameter setting. Then press〖Freq〗softkey, enter 10
kHz with the numeric keypad or the knob and arrow keys. Press 〖kHz〗softkey to finish

entering the number.

3. To set the modulation depth

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Press 〖Return〗key to back to parameter setting and press the 〖Depth〗softkey and then
set the value to 80% using the numeric keypad or the knob and arrow keys. Press 〖％〗

softkey finish entering the number if you are using the numeric keypad.

4. To set modulating waveform frequency
Press 〖AM Freq〗softkey and then set the value to 10 using the numeric keypad and
finally press〖Hz〗softkey.

5. To select the modulation waveform shape
Press the 〖Shape〗softkey then press 【Ramp】key to set the shape of modulating
waveform as Ramp.

6. To set AM parameters by knob or arrow keys

4.3.8 To output an Sum waveform

If you want to output a Sum waveform with amplitude 10% and modulation waveform is
Ramp.

1. Select Sum
Press 【Modulate】key and then select 〖Sum〗softkey by pressing the 〖Mod Type〗
softkey.

2. To set the Sum amplitude
Press the 〖Sum Ampl〗softkey and then set the value to 10 using the numeric keypad
and finally press〖%〗softkey, or set by the knob and arrow keys.

3. To select the modulation waveform shape
Press the 〖Shape〗 softkey then press 【Ramp】 key to set the shape of modulating
waveform as Ramp.

4. Generator output a sum waveform as preset modulating parameters and you also
can adjust amplitude of summed ramp by 【＜】or 【＞】keys.

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4.3.9 To output a FSK waveform

If you want to output a FSK waveform with hop frequency to 300Hz, with an FSK rate of
50Hz,

1. Select FSK
Press 【Modulate】key and then select 〖FSK〗softkey by pressing the 〖Mod Type〗
softkey.

2. Set the hop frequency
Press the 〖Hop Freq〗softkey then set the value to 300Hz using the numeric keypad or
the knob and arrow keys.

3. Set the FSK rate
Press the 〖Hop Rate〗softkey then set the value to 50Hz using the numeric keypad or
the knob and arrow keys.

4. Set the hop frequency and FSK rate by knob or arrow keys.

4.3.10 To output a Frequency Sweep

If you want to output an swept waveform with sweep time of 5 second, logarithmic
sweep,

1. Select Frequency sweep

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Press 【Sweep】key and then verify that the Sweep is selected in default.

2. Select sweep time
Press the 〖Sweep Time〗softkey then set the value to 5s using the numeric keypad or
the knob and arrow keys.

3. Select sweep mode
Press the 〖Mode Line/Log〗softkey and then verify that the logarithmic sweep mode is
currently selected on the first softkey.

4.3.11 To output a Burst waveform

If you want to output a five-cycle wave with a 10ms burst period, continuous or manual
signal trigger.

1. Press 【Burst】key then burst menu is shown in the screen of the current channel.

2. Press 【Burst Mode】and select the ‘Triggered’.

3. Press 〖Burst Period〗softkey then set the value to 10ms using the numeric keypad

or the knob and arrow keys.

4. Press 〖N Cycle〗 softkey then set the value to 5 using the numeric keypad or the

knob. Press the 〖Ok〗 softkey to finish data entry if you are using the numeric

keypad.
At this point, the waveform generator outputs a continuous five-cycle burst at 10 ms
intervals.

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You also can generate signal burst (still with 5 cycles) by selecting Manual Trig under
pressing 〖Source Int/Ext〗softkey. Then each time you press 〖Manual Trig〗softkey, one
five-cycle burst will be output. Press number depends on the desired burst number.

4.3.12 Frequency Coupling

If you want to couple frequencies between the two channels,

1. Press 【Dual Channel】key. The dual channel menu is shown in the current screen.

2. Press the 〖Freq Cpl〗softkey to turn frequency coupling on. Then press 〖More〗

softkey to configure frequency coupling.

3. Press 【 Continuous】 key to configure CHA frequency, just because channel

frequencies can be linked with a constant ratio or difference between them, CHB

frequency will be changing as CHA changes.

4.3.13 Frequency Counter

If you want to measure a frequency of external signal,

1. Press 【Counter】key to enter into Counter mode and display the counter menu and

count results.

2. Input measured signal through ‘Counter’ connector at rear panel.

3. Press 〖Meas Type〗softkey, the generator begin to measure then display the

measured frequency value.

4. For Square input, press 〖Duty cyc〗softkey to enable the duty cycle measurement

and display the duty cycle.

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Key

Working Mode

【Continuous】

Continuous output

【Modulate】

Modulate output

【Sweep】

Sweep output

【Burst】

Burst output

【Dual Channel】

Dual channel operation

【Counter】

Frequency counter

No.

Waveform

No.

Waveform

Standard Waveforms 5

00

Sine

03

Pulse

01

Square

04

Noise

02

Ramp

Math Waveforms 36

05

PRBS

23

LogRise

06

PosDC

24

LogFall

07

NegDC

25

PosSquare

08

Cosin

26

NegSquare

5.Features and Functions

This chapter makes it easy to look up details about a particular feature of the waveform
generator. It also covers the front-panel operations. You should read Chpter2
‘Front-panel Menu Operation’ first and master the basic operation so as to get a better
understanding for this chapter.

5.1 Working Mode

There are six working modes for the waveform generator,
While,
CHA and CHB both cover four modes: continuous output, modulate output, sweep output
and burst output.
Notice that the modulate output covers thirteen types: AM, FM, PM, PWM, SUM, FSK,
QFSK, 4FSK, PSK, QPSK, 4PSK, ASK, OSK.
And sweep output covers three types: Frequency Linear Sweep, Frequency Logarithm
Sweep and Frequency List sweep.

5.2 Continuous Output

5.2.1 Waveform Selection

The waveform generator can output 150 waveforms, see below table,

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09

Tangent

27

PosCube

10

CoTangent

28

NegCube

11

ArgSine

29

SquareRoot

12

ArgCos

30

PosRecipro

13

ArgTan

31

NegRecipro

14

ArgCoTan

32

PNRecipro

15

SineH

33

BiRecipro

16

CosinH

34

PosSemicirc

17

TangentH

35

NegSemicirc

18

CoTangentH

36

Gaussian

19

HaverSine

37

Maxwell

20

Sinc

38

Lorentz

21

ExpRise

39

Laplace

22

ExpFall

40

Besell

Linear Waveforms

41

PosPulse

59

PNTriangl

42

NegPulse

60

HiLoTri

43

PN_Pulse

61

LoHiTri

44

PosBiPulse

62

PosRiseRamp

45

NegBiPulse

63

PosFallRamp

46

PNBiPulse

64

RiFaRamp

47

PMulPulse

65

NegRiseRamp

48

NMulPulse

66

NegFallRamp

49

PNMulPulse

67

FaRiRamp

50

WidePulse

68

Trapezia

51

NarrowPulse

69

RiseStair

52

WiNaPulse

70

FallStair

53

HiLoPulse

71

RiFaStair

54

RisePulse

72

RiStariRamp

55

FallPulse

73

FaStariRamp

56

RiFaPulse

74

Spiry

57

PosTriangl

75

Swallow

58

NegTriangl

76

Chair

Combine Waveforms 40

77

PAllSine

97

SineFSK

78

NAllSine

98

SinePSK

79

PHalfSine

99

SineSum

80

NHalfSine

100

SineSweep

81

SiAmplCut

101

AmplInc

82

BiAmplCut

102

AmplDec

83

SiPhaselCut

103

BurstNoise

84

BiPhaselCut

104

BurstSine

85

SinePulse

105

LowPass

17

86

NoisePulse

106

HighPass

87

BiHarmo

107

BandPass

88

TriHarmo

108

BandPit

89

FourthHarmo

109

PulseOSC

90

FifthHarmo

110

PulseOver

91

SineFM

111

PNCircle

92

SineAM

112

Tripagoda

93

SquareAM

113

Candela

94

NoiseAM

114

ExpSquare

95

PulsePWM

115

ExpSine

96

SineFSK

116

TanSquRoot

Special Waveforms 32

117

TanArcTan

133

Cardiac2

118

ReciInvReci

134

NearQuake

119

HarmInvHarm

135

FarQuake

120

BiReciHarm

136

Blast

121

BiReciCircle

137

Shake

122

CubeGause

138

LandScape

123

TanHarm

139

Cloud

124

HalfBiReci

140

Camel

125

Charge

141

User_arb1

126

Stress

142

User_arb2

127

HeatTreat

143

User_arb3

128

MulHarm

144

User_arb4

129

Syntony

145

User_arb5

130

Stereo

146

User_arb6

131

RainFall

147

User_arb7

132

Cardiac1

148

User_harmo

Edit Waveform 1

149

Edit_wave

(1) 00~04 are standard common used waveforms.

05~140 are built-in waveforms which are used in special occasion.
141~147 are user-defined arbitrary waveforms, allows to be saved by users after
creating with software.
148 is used to save the user-defined harmonic wave.
149 is edit waveform, used to edit and modify arbitrary wave or harmonic wave. If
not save, the data will be lost once exit this function.

(2) Press 【Waveform】 key to see the waveform menu, select Sine, Square, Ramp,

Pulse or Noise from the options. Press〖Arb〗key and then〖Built-in〗option to select
built-in waveforms from 150 waveforms.

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Built-in waves have five types: Standard, Math, Linear, Combine and Special. Press
the option to enter into the waveform list and then select desired waveform by
left/right key or knob. Finally press〖Confirm〗to output selected waveform from the
output port, the sketch also be shown at the display.
Press 〖Back〗key to return to type menu and you can select other types of built-in
waveform again. Press〖Back〗key again to exit the built-in waveform menu. Or
press 【Waveform】key to return to current function window.

(3) The selected waveform diagram is shown but which is just a sample one with lower

resolution. Observe and test the output waveforms using oscilloscope.

5.2.2 Duty Cycle (Square or Pulse)
The duty cycle represents the fraction of time per cycle that the square wave is at a high
level. Press 【Waveform】key and choose Square or Pulse, press 〖Duty Cycle〗softkey
after selecting 【Continuous】key then set the desired value of duty cycle. Usually, the
duty cycle value remains unchanged if the Square frequency is changing, but duty cycle
is limited by the edge time if output frequency is too high, which should comply with the
below formula:

10ns ≤ ( Duty Cycle × Period ) ≤ ( Period－10ns )

5.2.3 Pulse Width and Edge Time

The pulse width represents the time from the 50% threshold of the rising edge of the
pulse to the 50% threshold of the next falling edge. After selecting the pulse function,
press the 〖Pulse Width〗 softkey. Then use the knob or numeric keypad to enter the
desired pulse width. The pulse width usually remains unchanged if the Square frequency
is changing, but will be limited by the edge time if output frequency is too high, which
should comply with the below formula:

10ns≤Pulse Width≤ Period－10ns
The edge time represents the time from the 10% threshold of rising/falling edge to 90%
of which. If select Pulse waveform in continuous menu, press 〖Edge Time〗 to select the
Edge parameter to set. The edge time setting will be also limited by pulse width, which
should comply with the below formula:

Edge Time≤0.625×Pulse Width

Edge Time≤0.625×Duty Cycle×Period

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5.2.4 Symmetry (Ramp)

Symmetry represents the fraction of time per cycle that the ramp wave is rising. After
selecting the ramp, press 〖Ramp Symmetry〗then set the desired value of symmetry.
The symmetry will remain unchanged if output frequency is changing. Rising Ramp will
be shown when symmetry is 100%, falling ramp will be shown when symmetry is 0%,
triangle wave display when symmetry is 50%.

5.2.5 Set Frequency

The output frequency range depends on the function currently selected and the upper
limit for sine depends on the model selected. The minimum frequency is 1μHz for all
functions. For detail specification, please see chapter 5. If you change to a function
whose maximum frequency is less than that of the current function, the frequency is
adjusted to the maximum value for the new function. The distortion will go increasing as
frequency rising.
To set the output frequency, press the 【Continuous】key, then the 〖Freq/Period〗
softkey for the selected function. Then use the knob or numeric keypad to enter the
desired frequency. Or press 〖Freq/Period〗 softkey again to set using Period. For
internally applying to frequency synthesis, the display period value is the conversed one
from enter value.

5.2.6 Set Amplitude

You can set amplitude by ‘amplitude’ or ‘level’. If amplitude set is selected, high level and
low level of signal will change at the same time when changing amplitude but DC offset
remain unchangeable. If level set is selected, no matter high level or low level changing,
low or high level remain unchangeable but DC offset will change. The relationships
between Vpp, High, Low and offset are shown below:
Vpp=High-Low High=Offset+Vpp/2 Low=Offset-Vpp/2
In continuous menu, press softkey 〖Ampl/High lev〗to set amplitude or high level. Press
softkey 〖Offset/Low lev〗 to set dc offset or low level.

5.2.7 Amplitude Limitation:

The output amplitude is limited by following factors. Once over the limitation, the
generator will modify the setting as its allowed maximum within the limitation.
(1) Limit Level: press 〖Ouput Menu〗softkey and then〖High Lev Limit〗softkey specify

the limit value of high level. Press〖Low Lev Limit〗softkey specify the limit value of
low level. Even if wrong operation that exceed the limit value, the generator won’t be

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Waveform

Vpp

Vrms

Sine

2.828Vpp

1Vrms

Square, Pulse

2Vpp

1Vrms

Ramp

3.464Vpp

1Vrms

Vpp

Vrms

dBm

10.0000 Vpp

3.5356 Vrms

23.979 dBm

6.3246 Vpp

2.2361 Vrms

20.000 dBm

2.8284 Vpp

1.0000 Vrms

13.010 dBm

2.0000 Vpp

707.1 mVrms

10.00 0dBm

1.4142 Vpp

500.0 mVrms

6.9897dBm

damage and perform within the limit value. But if specify the high level value to be
+10Vdc and low level to be -10Vdc, the limit function won’t work anymore.

(2) DC offset: except that set DC offset as 0, the amplitude is only limited by limit level,

otherwise, which is further limited by DC offset, as following regulation:

DC offset + Vpp/2≤High Limit
DC offset – Vpp/2≥Low Limit

(3) Frequency: if frequency high enough, allowed maximum amplitude will be limited

(refer to chapter 5, Specifications)

(4) Channel Bandwidth: the output amplitude will decrease if frequency is higher. So

flatness compensation will be needed to ensure the accurate amplitude in
continuous output. But for other functions, once the frequency over 10MHz, the
amplitude will decrease.

(5) For the arbitrary waveform generator, if Vpp don’t reach to full range, the display

value is not agreed with the output value.

5.2.8 Amplitude Units: You can set the output amplitude in Vpp, Vrms, or dBm. Vpp is
available for all functions. For sine, square, ramp and pulse, Vrms can also be used. The
output units for amplitude can also be set to dBm if the external load is currently set to
‘non High Z’.
(1) In continuous mode, press〖Ampl Unit〗select units if current waveforms and load

condition allows. Different unit key will enable the different format displaying.

(2) For different waveforms, the convert relationship between Vrms and Vpp is subject

to, see below table:

(3) The relationship among dBm and Vrms and Vpp is subject to waveform and load,
dBm＝10×log10(P/0.001), while, P＝(Vrms)2/Load
If waveform is sine, set 50Ω load, the convert among three output units is shown below,

21

632.5 mVpp

223.6 mVrms

0.00 dBm

282.9 mVpp

100.0 mVrms

-6.9879dBm

200.0 mVpp

70.7 mVrms

-10.000 dBm

10.0 mVpp

3.5 mVrms

-36.020 dBm

5.2.9 Set DC offset

Press 〖Offset/Low lev〗softkey then set the desired offset value using the knob or
numeric keypad. Here, enter by knob is strongly recommend because of more
convenience feature. The DC offset setting will limit by amplitude and level, which should
be agreed with below formula:
Low Limit＋Vpp/2≤Offset≤High Limit－Vpp/2
If the specified offset out of the range, the waveform generator will automatically adjust it
to the maximum DC voltage allowed with the amplitude specified.
If set amplitude to 0.2mVpp, high level limit to +10Vdc and low level limit to -10Vdc, then
the offset can be set within ±10V range. The waveform generator become the DC power
supply and can output DC voltage signal. But the thing to be noted is that the output
impedance is 50Ω.

5.2.10 Set Phase

Press 〖Phase〗softkey to select ‘Phase’ then set the desired phase using the numeric
keypad or knob.Output phase means the phase difference between output signal and
synchronous signal, and output signal advance to synchronous signal.
If frequency is same for CHA and CHB, press 〖Output Menu〗softkey to select 〖Phase

Sync〗to make the synchronous signal of CHA and CHB are with same phase. So it’s

easy to calculate the phase difference of two channels on basis of the phase setting for
CHA and CHB.

5.2.11 Set Polarity

In continuous mode, press 〖Output Menu〗and then〖Polarity〗softkey to set the polarity
of output signal.
(1) If select Normal, it means output waveform same as sketch. Take Sine for example,

normal polarity means output waveform start from zero phase and voltage goes
rising.

(2) If select Inverse, it means output waveform will be take voltage 0V as axes, and

generates the vertical image opposite to Normal polarity.

(3) Polarity setting has no influence to DC offset volts and Sync signal.

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