B&K 4071 user manual Dualtone Generation Mode, 10,000 Hz F2 Ton 000 mS Toff 10.0

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5.24 Dualtone Generation Mode

Introduction

The Dualtone Generation mode generates an output signal, which is the sum of two sinusoids of equal amplitude. The frequency of each sinusoid may be individually specified with 1 Hz resolution. In addition, a phase offset may be specified which offsets the phase of one sinusoid with respect to the other. The resulting Dualtone waveform may be gated on and off for specified intervals. This feature allows the user to pulsate the tone, which can be especially useful when generating cadenced signals such as a busy tone, ring-back, etc.

This mode is available under the “other” modes menu. To enter the Dualtone Generation mode, press:

Mode, Clear, 2

Dualtone Generation Mode Parameters

The Dualtone Generation mode has the following front panel display:

1

 

2

 

3

 

 

 

 

 

Dualtone F1:

 

10,000 Hz F2:

 

5,000 Hz

Ø:

 

 

0

Ton:

1,000 mS

Toff:

0 mS

-10.0

 

dBm

 

 

 

 

 

4

 

5

 

6

 

 

 

 

 

Figure 5.24-1: Dualtone Generation mode display

1. Tone 1 frequency

In this field enter the frequency of the first signal. You may enter from 0 Hz (DC) to 10.000 KHz in 1 Hz steps.

2. Tone 2 frequency

In this field enter the frequency of the second signal. You may enter from 0 Hz (DC) to 10.000 KHz in 1 Hz steps.

3. Phase Offset

In this field enter the phase offset from the first sinusoid to the second. The sinusoid of Tone 1 is advanced by the specified phase relative to Tone 2. This parameter is useful when the frequencies of the two tones are harmonically related and a specific phase relationship between the two is desired. You may enter from 0 degrees to 359 degrees in 1 degree steps.

4. Output “On” time

In this field enter the amount of time for the output to remain on. If you wish a continuous output, any value may be specified here, but you will need to set the “off” time to 0 mS. You may enter an ON time from 1 mS to 10.000 Sec in 1 mS steps.

5. Output “Off” time

In this field enter the amount of time for the output to remain off. If you wish a continuous output, set this value to

0 mS. you may enter an OFF time from 0 mS to 10.000 Sec in 1 mS steps.

6. Level

In this field enter the output level, from 4 mVp -p to 5 Vp -p in 1 mV steps or from -44.0 dBm to +18.0 dBm in 0.1 dBm steps.

NOTE: The level specified is a 50O loaded level. This is the level of the signal, which will appear across a 50O load connected to the SIG Out connector. Into an open circuit, the output swing will be twice the value entered.

Offset

You can enter an offset voltage for the output signal. For more information on output offsets refer to section 4.4.

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BK Precision 4071 User Manual Rev.2.2

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Page 38 Page 40
Contents User’s Manual Page +K Precision Corp Model User’s ManualTable of Contents DC Operation Option Warranty informationRemote operation Arbitrary waveform systemIntroduction Description Modes Feature summaryInstallation and setup Sync out connectorSIG Out connector External Modulation In connector External Trigger/Gating/FSK/BPSK input Line in connector External Reference Input / Ext Arb. Clock connectorExternal Arb Sync In / Out connector RS232 Interface connectorRecall / Store key Mode keyOperating controls and keys Field arrow keysTrigger key Numeric keys 0 to 9,É, ê, è, ç keys One Touch Mode Keys Clear keyMHz/dBm, KHz/Vp-p/Sec, Hz/mVp-p/mS keys Changing level Operating mode selectionOperating guide Changing frequencyChanging values Modifying an existing valueEntering a new value Mode descriptions Basic Sinewave CW ModeSinewave Mode 000,000.00 Hz 10.0 dBm Internal AM Mode Input Gain External AM ModeExternal AM Mode Parameters External AM Input gain 000,000.00 Hz PEP level -10.0 dBmPeak Frequency Deviation Internal FM ModeInternal FM Mode Parameters Int FM 1,000 Hz Pk dev 10,000 Hz 000,000.00 Hz 10.0 dBmExternal FM Mode External FM Mode ParametersExternal FM Pk dev 10,000 Hz 000,000.00 Hz 10.0 dBm Int PM 1,000 Hz Pk dev 180 deg 000,000.00 Hz 10.0 dBm Internal PM ModeInternal PM Mode Parameters Peak Phase DeviationExternal PM Mode External PM Mode ParametersExternal PM Pk dev 180 deg 000,000.00 Hz 10.0 dBm Sweep Mode Sweep time Up / Down sweepSpace Frequency Internal FSK ModeInternal FSK Mode Parameters Mark FrequencyExt FSK Input External FSK ModeExternal FSK Mode Parameters Ext FSK Mark 1,000,000.00 Hz Space 2,000,000.00 Hz 10.0 dBmBurst Mode Introduction Burst Mode Trig Ton 10,000 mS 000,000.00 Hz Off 10.0 dBmBurst frequency Upper/Lower Sideband selections Internal SSB ModeInternal SSB Mode Parameters Int SSB 1,000 Hz Upper Sideband 000,000.00 Hz 10.0 dBmExternal SSB Mode External SSB Mode ParametersExternal SSB Upper Sideband 000,000.00 Hz 10.0 dBm Background Dtmf Generation ModeDtmf generation # Duration 200 mS Delay Level -10.0 dBm Dtmf Generation Mode ParametersDtmf Duration Dtmf DelayDtmf detected digits Dtmf Detection ModeDtmf Detection Mode Parameters Dtmf detection on Ext Mod input 3 # aVoltage Level Power & Voltage Measurement ModePower & Voltage Measurement Mode Parameters Power LevelArbitrary Mode Remote ModeOther mode Internal Bpsk Mode Internal Bpsk Mode ParametersInt Bpsk 1,000 Hz 000,000.00 Hz 10.0 dBm External Bpsk Mode External Bpsk Mode ParametersExternal Bpsk 000,000.00 Hz 10.0 dBm 10,000 Hz F2 Ton 000 mS Toff 10.0 Dualtone Generation ModeDualtone Examples Baud Rate Data Modulation ModeUsing the Data Modulation Mode Data Modulation Mode ParametersExample Message Downloading Modulation Message DataSaving the Message Triggering the TransmissionEnd Frequency Voltage Controlled Oscillator VCO ModeVCO Mode Parameters Start End 1,000,000.00 Hz 10.0 dBmConnecting Remote OperationChecking your connection with Hyper Terminal Remote Control Programming Rules Remote Control OperationReturns C Remote Control CommandsReset 4071 to Sine wave mode × ØK1.0 Enable, Disable front panel keys and rotary knob E1,0 Enable, Disable LCD echo to terminalReport hardware and software versions ? or H Print help menu Stp 31,500,000.00 HzLinear Trig Up Time 10,000 mS F0-9 Move cursor to field 0 toExample Remote Control ExamplesArbitrary Waveform Mode Quick Start GuidePin 9-pin cable Pin 25 pin cable adapter Description of the Arbitrary Waveform Generator Introduction to the Arbitrary Waveform SystemPulse Generator Switching ModesFeature Summary Function GeneratorContinuous/Triggered mode Arbitrary Waveform ModeInt Clock / Ext Clock / Lock Master Lock slave mode PhaseRepetition Frequency Function Generator ModeFunction Gen Wave Pos Ramp Rep Freq 100,000 Hz 000 mV WaveformPulse Generator Mode Positive OnlyDuty Cycle Cwaveload /COMx /y /baudz filename.ext Using WAVELOAD.EXEDownloading arbitrary waveforms Saving Arbitrary WaveformsUsing your own program Data Formats Floating Point FormatRules for Floating Point format Example #2 Time & Value Floating Point FormatDigital Format Rules for Integer format Integer FormatHexadecimal Format Rules for Hexadecimal formatExample The data value E468 is handled as follows Binary Format Rules for Binary formatExample Multiple Units Locking ArbGenerator Waveform Size Restrictions More on Phase OffsetsPhase Resolution Starting Address = Number of waveform points * Phase OffsetProgram Listing ARB.BAS Example Arb ProgramClose System Subroutines Return Print #1, a Send integer value to Return Return DC Operation Option Wiring DiagramOperating Modes 4071 SpecificationsRemote Software CDAppendix a Hardware SetupCLS CLS Print Print Subroutines END SUB Appendix B Television Remote Control ExampleCLS Make sure a 4071 is attached to the serial port Print Limited Two-Year Warranty Service Information Savi Ranch Pkwy Yorba Linda, CA 92887 USA TEL
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