Manuals / B&K / Lawn and Garden / Portable Generator

B&K 4071 user manual External Modulation In connector

Models: 4071

1 88

Download 88 pages 40.73 Kb

Page 10

3. External Modulation In connector

3. External Modulation In connector

The External Modulation In connector, located on the rear of the 4071, accepts an external analog signal as illustrated here:

Figure 2.0-3: Connecting an external signal

On this connector, the user supplies a base band signal (below 50 KHz) that is used to modulate an output carrier. (microphone is shown here as an example). It also serves as the input connector for DTMF signals in DTMF Detection mode, and signals to be measured in the Power Level and Voltage Measurement mode.

This input is high impedance (about 30KO). It was made high impedance to avoid loading down the circuit supplying the signal.

This input is DC coupled within the 4071. The signal on this input is internally low pass filtered to a cutoff frequency of 50KHz.

The input level for this connector is ±5V max. For external modulation mo des, a 1V p-p signal will fully modulate the carrier. If you apply a higher-level signal than 1 Vp -p, the input signal will be distorted. The distortion that will take place under these conditions is a "hard limiting" type (i.e. the waveform will "flat top" at the positive and negative extremes). Under these conditions, the word "Overld" will be printed to the LCD for input levels that are too high.

*** Caution ***

External signals greater then ± 25Vp-p range on external applied to modulation input may damage the 4071.

5

BK Precision 4071 User Manual Rev.2.2

Image 10

B&K 4071 user manual External Modulation In connector

Contents

User’s Manual ModelPage B+K Precision Corp B&K PrecisionModel User’s Manual 3.0 Operating controls and keys 2.0 Installation and setup1.0 Introduction 4.0 Operating guide7.0 Arbitrary waveform system Warranty information6.0 Remote operation 8.0 DC Operation OptionFigure 1.0-1:The BK Precision model 1.0 Introduction1 BK Precision 4071 User Manual Rev.2.2 1.1 Description 1.2 Feature summary Modes1. SYNC out connector 2.0 Installation and setup2. SIG Out connector 3. External Modulation In connector 4. External Trigger/Gating/FSK/BPSK input result by exceeding this input voltage limit7. RS232 Interface connector 6. External Arb Sync In / Out connector8. Line in connector 3.2 Field arrow keys 3.0 Operating controls and keys3.1 Mode key 3.3 Recall / Store key3.6 Numeric keys 0 to 9, - and 3.5 Trigger key3.7 é, ê, è, ç keys 3.9 MHz/dBm, KHz/Vp-p/Sec, Hz/mVp-p/mSkeys 3.8 Clear key3.10 One Touch Mode Keys 4.2 Changing level 4.0 Operating guide4.1 Changing frequency 4.3 Changing operating modes4.5.1 Modifying an existing value 4.5 Changing values4.5.2Entering a new value Sinewave Mode 5.0 Mode descriptions5.1 Basic Sinewave CW Mode 1,000,000.00 HzPercent Mod: 100% 5.2 Internal AM ModeInt AM: 1,000 Hz PEP level: -10.0dBmInput gain: 5.3 External AM ModeExternal AM External AM Mode ParametersPk dev: 10,000 Hz 5.4 Internal FM ModeInt FM: 1,000 Hz Internal FM Mode ParametersExternal FM Mode Parameters 5.5 External FM ModeExternal FM 1. Peak Frequency DeviationInt PM: 1,000 Hz 2. Peak Phase Deviation5.6 Internal PM Mode Pk dev: 180 degExternal PM 1. Peak Phase Deviation5.7 External PM Mode External PM Mode ParametersStp: 20,000,000.00 Hz 5.8 Sweep ModeSt: 1,000,000.00 Hz Linear | Cont | Up | Time: 60,000 mS -10.0dBm6. Sweep time SYNC Out Connector5. Up / Down sweep 7. LevelMark: 1,000,000.00 Hz 5.9 Internal FSK ModeInt FSK: 1,000 Hz Space: 2,000,000.00 HzExternal FSK Mode Parameters 5.10 External FSK ModeExt FSK 1. Mark FrequencyTrig 5.11Burst Mode IntroductionBurst Mode 10,000 mSUpper Sideband 5.12 Internal SSB ModeInt SSB: 1,000 Hz Internal SSB Mode ParametersExternal SSB Mode Parameters 5.13 External SSB ModeExternal SSB 1. Upper/Lower Sideband selectionsDuration: 200 mS 5.16 DTMF Generation ModeDTMF generation: # Delay4. Level 2. DTMF Duration3. DTMF Delay OffsetDTMF Detection Mode Parameters 5.17 DTMF Detection ModeDTMF detection on Ext Mod input 1 2 3 # A 1. DTMF detected digits1. Power Level 5.18 Power & Voltage Measurement ModePower & Voltage Measurement Mode Parameters 4. External Modulation In ConnectorRS-232baud rate: 5.19 Arbitrary Mode5.20 Remote Mode Use 0-9,arrow keys, or knob to select10.0 dBm 5.22 Internal BPSK Mode1Int BPSK: 1,000 Hz Internal BPSK Mode ParametersExternal BPSK Mode Parameters 5.23 External BPSK ModeExternal BPSK 1. Carrier Frequency10,000 Hz F2 3. Phase Offset5.24 Dualtone Generation Mode 5,000 HzDualtone Examples Ext Gating InputData Using the Data Modulation Mode5.25 Data Modulation Mode Data Modulation Mode ParametersOffset Downloading Modulation Message DataExample Message Ext Trigger InputTriggering the Transmission Saving the Message0 Hz 5.26 Voltage Controlled Oscillator VCO ModeStart End: 1,000,000.00 Hz6.1 Introduction 6.2 Connecting6.0 Remote Operation 6.3 Checking your connection with Hyper Terminal6.4 Remote Control Operation 6.5 Remote Control Programming Rules6.6 Remote Control Commands Z Y X CE1,0 - Enable, Disable LCD echo to terminal V - Report hardware and software versions10.0dBm Stp: 31,500,000.00 HzLinear | Trig | Up | Time: 10,000 mS 0 HzExample 6.7 Remote Control ExamplesExample Example9 pin - 9-pincable 7.0Arbitrary Waveform Mode7.1Quick Start Guide 9 pin - 25 pin cable adapter7.2 Introduction to the Arbitrary Waveform System IntroductionFunction Generator 7.3 Switching Modes7.2.2 Feature Summary Pulse Generator7.4 Arbitrary Waveform Mode Phase: 126.35 deg2. Phase Arb Mode IntWave: Pos Ramp 7.5 Function Generator ModeFunction Gen Cont Rep Freq: 100,000 HzOnly? N Duty Cycle: 50 % 7.6 Pulse Generator ModePulse Gen Cont Rep Freq: 2,000,000.00 HzSaving Arbitrary Waveforms 7.7.1 Using WAVELOAD.EXE7.7 Downloading arbitrary waveforms C:>WAVELOAD /COMx /y /baud:z filename.ext7.7.2 Using your own program Example 7.8 Data Formats7.8.1 Floating Point Format Rules for Floating Point formatExample #2 7.8.2 Time & Value Floating Point FormatExample 7.8.3 Digital Format ExampleExample 7.8.4 Integer FormatRules for Integer format Rules for Hexadecimal format 7.8.5 Hexadecimal FormatExample Rules for Binary format 7.8.6 Binary FormatExample 7.9.1 Introduction to Multiple Arb Locking 7.9 Multiple Units LockingGenerator Quick Start GuideWaveform Size Restrictions More on Phase OffsetsPhase Resolution ExampleARB.BAS 7.10 Example Arb ProgramProgram Listing - ARB.BAS 63 BK Precision 4071 User Manual Rev.2.2 F = Floating Point I = Integer RETURN PRINT #1, PointValSend Floating point number to Send Integer data toRETURN PRINT #1, aSend integer value to 66 BK Precision 4071 User Manual Rev.2.267 BK Precision 4071 User Manual Rev.2.2 68 BK Precision 4071 User Manual Rev.2.2 8.0 DC Operation Option Wiring DiagramSpecifications DescriptionOperating Modes 9.0 4071 Specifications70 BK Precision 4071 User Manual Rev.2.2 CALIBRATE UPDATE10.0 Software CD REMOTEAppendix A Hardware Setupwill cause permanent damage to the 73 BK Precision 4071 User Manual Rev.2.2 74 BK Precision 4071 User Manual Rev.2.2 75 BK Precision 4071 User Manual Rev.2.2 76 BK Precision 4071 User Manual Rev.2.2 Hardware Setup Television Remote Control ExampleAppendix B Background78 BK Precision 4071 User Manual Rev.2.2 79 BK Precision 4071 User Manual Rev.2.2 80 BK Precision 4071 User Manual Rev.2.2 Model Number: ______________ Limited Two-YearWarrantyDate Purchased: __________ Service Information 82 BK Precision 4071 User Manual Rev.2.2PN: 481-419-9-001Printed in the U.S.A 22820 Savi Ranch Pkwy Yorba Linda, CA 92887 USA2002 B&K Precision Corp