B&K 4070A user manual External SSB Mode, External SSB Upper Sideband 000,000.00 Hz +10.0 dBm

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5.13 External SSB Mode

Introduction

External SSB mode generates a Single Sideband (SSB) modulated signal of fixed carrier frequency. External signal is used to modulate either Upper sideband or Lower sideband of a carrier signal. Carrier frequency, output level with DC offset values could be manually entered on the keypad. External signal gating option available in this mode. Internal SSB mode could be entered by pressing “Mode”> “SSB” >”2” key at any time.

External SSB Mode Parameters

The External SSB mode has the following front panel display:

2

		External SSB:	Upper Sideband
		External SSB:	Upper Sideband
		1,000,000.00 Hz	+10.0 dBm
		1,000,000.00 Hz	+10.0 dBm

Figure 5.13-1: External SSB mode display

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3

1. Upper/Lower Sideband selections

This parameter selects which sideband will be generated. Single sideband modulation specifies that all energy in the modulated waveform should be either above the carrier frequency or below it. Upper sideband places all signal energy above the carrier frequency, and Lower sideband places all signal energy below the carrier frequency.

To select Lower sideband, press 0. To select Upper sideband, press 1. Pressing any arrow key or rotating the wheel will toggle the sideband selection between upper and lower.

2. Carrier Frequency

In this field enter the frequency of the carrier. Yo u may enter from 0 Hz (DC) to 21.5 MHz in 0.01 Hz steps.

NOTE: It is possible to enter values for the carrier frequency such that the upper sideband can exceed 21.5 MHz or the lower sideband can go below 0 Hz. Care should be taken not to do this since distortion of the output waveform may result.

3. Level

In this field enter the output level, from 4 mVp -p to 10 Vp -p in 1 mV steps or from -44.0 dBm to +21.0 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.

Ext Gating Input

This TTL compatible input can be used to gate the output signal on or off. A logic high voltage turns off the output. For further information on the Ext Gating Input, refer to section 2.0.

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BK Precision 4070A User Manual Rev.2.2

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Contents User’s Manual Page +K Precision Corp Model 4070A User’s ManualTable of Contents DC Operation Option Warranty informationRemote operation Arbitrary waveform systemIntroduction Description Modes Feature summarySync out connector Installation and setupSIG 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 keysNumeric keys 0 to 9, Trigger keyÉ, ê, è, ç keys Clear key One Touch Mode KeysMHz/dBm, KHz/Vp-p/Sec, Hz/mVp-p/mS keys Changing level Operating mode selectionOperating guide Changing frequencyModifying an existing value Changing valuesEntering a new value Basic Sinewave CW Mode Mode descriptionsSinewave 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 Parameters External FM ModeExternal 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 Parameters External PM ModeExternal 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 Trig Ton 10,000 mS 000,000.00 Hz Off 10.0 dBm Burst Mode IntroductionBurst 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 Parameters External SSB ModeExternal 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 LevelRemote Mode Arbitrary ModeOther mode Internal Bpsk Mode Parameters Internal Bpsk ModeInt Bpsk 1,000 Hz 000,000.00 Hz 10.0 dBm External Bpsk Mode Parameters External Bpsk ModeExternal 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 dBmRemote Operation ConnectingChecking your connection with Hyper Terminal Remote Control Programming Rules Remote Control OperationReturns C Remote Control CommandsReset 4070A to Sine wave mode × ØE1,0 Enable, Disable LCD echo to terminal K1.0 Enable, Disable front panel keys and rotary knobReport hardware and software versions Return a C Linear Trig Up Time 10,000 mSF0-9 Move cursor to field 0 to ? or H Print help menuExample Remote Control ExamplesQuick Start Guide Arbitrary Waveform ModePin 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 WaveformPositive Only Pulse Generator ModeDuty Cycle Cwaveload /COMx /y /baudz filename.ext Using WAVELOAD.EXEDownloading arbitrary waveforms Saving Arbitrary WaveformsUsing your own program Floating Point Format Data FormatsRules for Floating Point format Example #2 Time & Value Floating Point FormatDigital Format Integer Format Rules for Hexadecimal format Hexadecimal FormatExample The data value E468 is handled as follows Rules for Binary format Binary FormatExample Arb Multiple Units LockingGenerator 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 4070A Return Return DC Operation Option Wiring DiagramOperating Modes 4070A SpecificationsRemote Software CDAppendix a Hardware SetupCLS CLS Print Print Subroutines END SUB Appendix B Television Remote Control ExampleCLS Make sure a 4070A is attached to the serial port Print Limited Two-Year Warranty Service Information Savi Ranch Pkwy Yorba Linda, CA 92887 USA TEL