B&K 4070A user manual Up / Down sweep, Sweep time

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5. Up / Down sweep

In this field select the direction of the sweep. An up sweep begins at the start frequency and ends at the end frequency. A down sweep begins at the end frequency and ends at the start frequency.

To set Up type sweep, press 0. To set down type sweep, press 1. Pressing any arrow key or rotating the wheel will toggle the sweep between Up and Down.

6. Sweep time

In this field you specify how long it takes the sweep to increase the frequency from the start frequency to the stop frequency. You may enter 1 mS to 60,000 mS (60 seconds) in 1 mS step. In Continuous sweep mode, the sweep may be halted by applying logic high to the Ext Gating Input connector on the rear of the unit. Doing so also halts the sweep timer, i.e. the sweep time will be lengthened by the amount of time that the sweep is halted.

7. 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 +24.0 dBm in .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.

SYNC Out Connector

This TTL/CMOS compatible output supplies a high going pulse at the start of each sweep. That could be useful for triggering scopes or other equipment at the start of each sweep.

Ext Gating Input

This TTL compatible input is used in two different ways, depending on whether the sweep mode is Continuous or Triggered. In Continuous sweep, the user can halt the sweep "dead in its tracks" by applying logic high (+3V to +10V) on this jack. The output frequency will be held constant until the input is brought low again. The sweep will then resume toward the stop frequency. In Triggered type sweep, this input functions as an external sweep trigger input. A logic low-to-high transition on this input will trigger the sweep. This input has an internal pull down resistor so that the input is held at a logic low when this input is left unconnected.

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BK Precision 4070A User Manual Rev.2.2

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Contents User’s Manual Page Model 4070A User’s Manual +K Precision CorpTable of Contents Arbitrary waveform system Warranty informationRemote operation DC Operation OptionIntroduction Description Feature summary ModesSIG Out connector Installation and setupSync out connector External Modulation In connector External Trigger/Gating/FSK/BPSK input RS232 Interface connector External Reference Input / Ext Arb. Clock connectorExternal Arb Sync In / Out connector Line in connectorField arrow keys Mode keyOperating controls and keys Recall / Store keyÉ, ê, è, ç keys Trigger keyNumeric keys 0 to 9, MHz/dBm, KHz/Vp-p/Sec, Hz/mVp-p/mS keys One Touch Mode KeysClear key Changing frequency Operating mode selectionOperating guide Changing levelEntering a new value Changing valuesModifying an existing value Sinewave Mode 000,000.00 Hz 10.0 dBm Mode descriptionsBasic Sinewave CW Mode Internal AM Mode External AM Input gain 000,000.00 Hz PEP level -10.0 dBm External AM ModeExternal AM Mode Parameters Input GainInt FM 1,000 Hz Pk dev 10,000 Hz 000,000.00 Hz 10.0 dBm Internal FM ModeInternal FM Mode Parameters Peak Frequency DeviationExternal FM Pk dev 10,000 Hz 000,000.00 Hz 10.0 dBm External FM ModeExternal FM Mode Parameters Peak Phase Deviation Internal PM ModeInternal PM Mode Parameters Int PM 1,000 Hz Pk dev 180 deg 000,000.00 Hz 10.0 dBmExternal PM Pk dev 180 deg 000,000.00 Hz 10.0 dBm External PM ModeExternal PM Mode Parameters Sweep Mode Up / Down sweep Sweep timeMark Frequency Internal FSK ModeInternal FSK Mode Parameters Space FrequencyExt FSK Mark 1,000,000.00 Hz Space 2,000,000.00 Hz 10.0 dBm External FSK ModeExternal FSK Mode Parameters Ext FSK InputBurst frequency Burst Mode IntroductionBurst Mode Trig Ton 10,000 mS 000,000.00 Hz Off 10.0 dBm Int SSB 1,000 Hz Upper Sideband 000,000.00 Hz 10.0 dBm Internal SSB ModeInternal SSB Mode Parameters Upper/Lower Sideband selectionsExternal SSB Upper Sideband 000,000.00 Hz +10.0 dBm External SSB ModeExternal SSB Mode Parameters Dtmf Generation Mode Parameters Dtmf Generation ModeDtmf generation # Duration 200 mS Delay Level -10.0 dBm BackgroundDtmf Delay Dtmf DurationDtmf detection on Ext Mod input 3 # a Dtmf Detection ModeDtmf Detection Mode Parameters Dtmf detected digitsPower Level Power & Voltage Measurement ModePower & Voltage Measurement Mode Parameters Voltage LevelOther mode Arbitrary ModeRemote Mode Int Bpsk 1,000 Hz 000,000.00 Hz 10.0 dBm Internal Bpsk ModeInternal Bpsk Mode Parameters External Bpsk 000,000.00 Hz 10.0 dBm External Bpsk ModeExternal Bpsk Mode Parameters Dualtone Generation Mode 10,000 Hz F2 Ton 000 mS Toff 10.0Dualtone Examples Data Modulation Mode Parameters Data Modulation ModeUsing the Data Modulation Mode Baud RateDownloading Modulation Message Data Example MessageTriggering the Transmission Saving the MessageStart End 1,000,000.00 Hz 10.0 dBm Voltage Controlled Oscillator VCO ModeVCO Mode Parameters End FrequencyChecking your connection with Hyper Terminal ConnectingRemote Operation Remote Control Operation Remote Control Programming Rules× Ø Remote Control CommandsReset 4070A to Sine wave mode Returns CReport hardware and software versions K1.0 Enable, Disable front panel keys and rotary knobE1,0 Enable, Disable LCD echo to terminal ? or H Print help menu Linear Trig Up Time 10,000 mSF0-9 Move cursor to field 0 to Return a CRemote Control Examples ExamplePin 9-pin cable Pin 25 pin cable adapter Arbitrary Waveform ModeQuick Start Guide Introduction to the Arbitrary Waveform System Description of the Arbitrary Waveform GeneratorFunction Generator Switching ModesFeature Summary Pulse GeneratorPhase Arbitrary Waveform ModeInt Clock / Ext Clock / Lock Master Lock slave mode Continuous/Triggered modeWaveform Function Generator ModeFunction Gen Wave Pos Ramp Rep Freq 100,000 Hz 000 mV Repetition FrequencyDuty Cycle Pulse Generator ModePositive Only Saving Arbitrary Waveforms Using WAVELOAD.EXEDownloading arbitrary waveforms Cwaveload /COMx /y /baudz filename.extUsing your own program Rules for Floating Point format Data FormatsFloating Point Format Time & Value Floating Point Format Example #2Digital Format Integer Format Example The data value E468 is handled as follows Hexadecimal FormatRules for Hexadecimal format Example Binary FormatRules for Binary format Generator Multiple Units LockingArb Starting Address = Number of waveform points * Phase Offset More on Phase OffsetsPhase Resolution Waveform Size RestrictionsExample Arb Program Program Listing ARB.BASClose System Subroutines Return Print #1, a Send integer value to 4070A Return Return Wiring Diagram DC Operation Option4070A Specifications Operating ModesSoftware CD RemoteHardware Setup Appendix aCLS CLS Print Print Subroutines END SUB Television Remote Control Example Appendix BCLS 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