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ST100 Starterkit User Manual

1. 1 ro oo ol 0 2 03 0 4 0 5 0 6 07 08 09 4 io 2 030 48 Channel I ii Ej File Mode 500m a cu KYA STOP cHQ E F5 i oo Y Range V ENS uw 05 F6 E amp 01 h zj 3 7 Cecile J Ei 200m 02 3 J File To DAC 400m 7 10 feed recorded signals to sensor inputs 0 5 l 10 TRIGGER Jy FILTER HilHz 1000 Order 2 Timebase ms div E r j i EH i i 00 01 18 904 i Stereol wav 19 2 MB 00 00 00 File Position 00 01 49 Fig 3 SignalViewer showing a person approaching the K MC1 stereo sensor RFbeam Microwave GmbH www rfbeam ch 05 April 2011 Page 7 17 ST100 Starterkit About ST100 Starterkit RFbeam ST100 Starterkit consists of a PCB motherboard a K LC1 radar module and a flexible acquisition software ST100 hardware serves as USB soundsystem without the need of installing driver software The system works with native radar modules as well as with modules containing IF Typical Applications RFbeam Microwave GmbH User Manual amplifiers Hardware allows frequency control of our FM sensors but not FMCW or FSK FM may be accomplished by our DAC Control software available for download on our website For FMCW and FSK consider using our ST200 Evaluation kit Evaluation and Optimisation of Short Range Radar Front Ends On Site Analysis of Real Signals Data Logging Playback of Real Signals into Sensor Systems Getting Doppler Radar Experience with Learning by Doin
2. Be sure to connect ST100 to your PC 2 Start the SignalViewer Software 3 Set the Device to Microphone USB Audio CODEC if it isn t i copon USE Audio FFT J RMS averaging oD 4 Goto Start gt Control Panel gt Hardware and Sound gt Manage audio devices Control Panel Home Devices and Printers ie F j T System and Security Add a device Adda printer Mouse W Device Manager Network and Internet a AutoPlay Ba Eta theranc avoid nimi Change default settings for media or devices Play CDs or other media automatically Programs Gp Sound User Accounts and Family 2 Adjust system volume Change system sound _ Manage audio devices ae Power Options Appearance and Change battery settings Change what the power buttons do ASD alltel Require a password when the computer wakes Change when the computer sleeps Clock Language and Region Adjust screen brightness Ease of Access s Display Make text and other items larger or smaller Adjust screen resolution Connect to a projector Connect to an external display AH amp RFbeam Microwave GmbH www rfbeam ch 05 April 201 1 Page 4 17 ST100 Starterkit 5 6 T 8 In the Playback tab search the ST100 mostly named as speakers with the description USB Audio CODEC and check that it is not set as default device The default device has a green hook in his icon Then select the ST100 and press the Properties button Goto the Level
3. If possible use a linear 9VDC supply and not a switched mode supply to minimize noise RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 11 17 RFbeam Microwave GmbH ST100 Starterkit User Manual External Digital Output ST100 can output its Peak Found Signal refer to 2 via a 2nd USB interface to an external hardware The signal allows controlling external devices such as alarms and lighting system by ST100 Signal Viewer For this purpose an external USB to TTL signal converter cable from FTDI is required http www ftdichip com Products Cables USBTTLSerial htm Use 5V or 3 3V types depending on your external Hardware Connect to USB PC Port 4 Colour Pin Name Description ST100 use Black 8 GND Device ground supply pin not used Brown 7 CTS CTS output not used Red 6 VCC 5V or 3 3V output External Hardware TXD i Eres 2 PONNEE PORAD FINS Loopback for indentifying cable as ST100 Yellow 4 RXD Connect to TXD Pin 5 ek Green 3 RTS Peak Signal Out max 50mA external Hardware Low if peak detected Fig 6 Digital output via USB port Please note TXD and RXD signals must be tied together This loopback serves as identification if multiple FTDI devices K TS1 e g are connected to the same computer SignalViewer software checks the presence of this cable at the startup of the software and turns on the Peak Out LED if the cable is detected Otherwise the LED
4. gt RFbeam gt SignalViewer or on the Desktop Go 1 Plug K LC1 module to connector X1 2 Check DIP switch for position offloffloff 3 Connect ST100 to your USB port 4 Start SignalViewer software 1 2 3 5 Set the Device to USB Audio CODEC 6 Play with the settings of SignalViewer 7 Use context help from menu move over frontpanel controls to get explanations Remark K LC1 module has one channel 1 only The picture below shows and Q signals of a 2 channel K MC1 module mn RFbeam SignalViewer A o EXIT F12 FREEZE F2 Speed km h ener Peak mark 3 Cursors peak detection range dey Freeze FFT T lt al Enables Speed Save FFT as reference Displa ven OFF 140 a JL Ee aA Le eh et Ui Ine om mn lL fume Dap o e d 0 0 0 1 0 2 0 3 0 4 Channel I o df Hz 5 4 l 0 o Ei ne nh mee ne rice A T FFT frequency domain display File Mode STOP 300m F5 200m Time domain display 2 traces for stereo modules Amplitude 4 File To DAC Forward signals to output Rewind left cursor i EN i 21 00 01 18 904 l u Play Pause space key Play Pause space key File Position 00 01 49 J FILTER HHz j1000 Order lt 2 File Operate Help Select a ST100 Starterkit MMM Read Buffer Sta Get context help place cursor over objects Peak Out So Devi
5. available at connector X6 This allows signal analysis by standard measurement equipment like multimeter and oscilloscope DAC signals are also routed to X6 These signals may be used to playback recorded radar waveforms and by connecting to your signal processing hardware This is useful to simulate and analyse sensor behaviour with real world signals Pin Signal Pin Signal VO Description Remark __ _ 1 fvcc 2 Veco O Lownoise supply output Max 100mA _ _ _ 3 X1 HII 4 X1 HIQ fI Amplified signals fromX1_ 60dB__ _ 5 X1 LOI 6 X1 LOQ fI Amplified signals fromX1_ 20dB__ _ 7 X2 HII 8 X2 HIQ fI Amplified signals from X2 400B _ _ _ 9 X2 LO_I 10 X2 LOQ fI Direct signals from X2 Unbuffered OdB 11 X3 HII 12 X3_HI Q fI Direct signal from X3 Unbuffered OdB 13 X3 LO_I 14 X3 LO Q fI Direct signal from X3 Unbuffered OdB 15 DAC Q 16 O DAC left channel buffered 17 DACI 18 O DAC right channel buffered 19 eND_ 20 GND OQ Refer to block diagram X4 Ext Power Connector ST100 is normally fed by USB interface The USB 5V supply is calmed by a step up followed by a linear regulator see block diagram in Fehler Referenz nicht gefunden Nevertheless an external 9VDC supply may be useful in some situations e You need more than 150mA from X1 X3 e Your PC has a very poor USB supply e You use ST100 as a standalone pre amplifier without USB connection
6. external power at DC plug X4 A Normally not ST100 and the modules connected to X1 X3 are powered by USB You only need external power if supply current at X1 X3 is gt 150mA Q What type of radar modules can connect to ST100 Starterkit A At X1 you may connect RFbeam modules of the K LCx series and other devices with low IF output level At X2 and X3 modules with higher IF output levels meeting the specifications chapter Sensor Input Connectors may be used Q How do the ST100 ADC and DAC work A DAC and ADC are recognized by Windows as USB audio devices So you may read and write to the ADC DAC with any software capable of driving audio devices We recommend to use 16Bit 44 1kHz audio setting Q Can I perform FMCW or FSK with ST100 A Hardware of ST100 permits FMCW operation SignalViewer software is not capable to drive FMCW outputs You may use a separate software to drive the DAC outputs This software must be able to generate audio output signals Q Why do I do not get any DAC analog output A First you must connect ST100 to the USB port ST100 will become primary audio device and will be recognized as USB Audio Codec Be sure to set analog output level to 100 Use Windows Audio Mixer and set master volume and wav volume to maximum Q Is there a FMCW support software by RFbeam A No because of synchronization problems in Windows Vista and Windows7 Consider using RFbeam ST200 fo
7. is grayed out RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 12 17 RFbeam Microwave GmbH ST100 Starterkit User Manual SignalViewer RFbeam SignalViewer software is a LabVIEW application for visualizing Doppler Radar signals in frequency and time domains Features FFT Power Spectrum Display from 5Hz to 20kHz Graphically Configurable Frequency and Peak Detection 2 Channel Time Domain Display scope with Trigger and Filter Functions Streaming to Standard 16Bit Audio Wave Files Realtime or Manually Controlled File Playback Function File Playback to Analog Output of ST100 Digital Output via USB to TTL Cable Characteristics Input frequency range 0 20kHz with ST100 Hardware 5Hz to 20kHz Input scaling 61uV Bit at ADC input Output scaling 33 9 uV Bit at DAC output with audio mixer at 100 Getting Help 1 Select Get Context Help from SignalViewer Menu 2 Place cursor on object of interest 3 Select User Manual to start PDF reader with manual Streaming Data 1 Press STREAM key 2 Select file SignalViewer overwrites existing files 3 Press STOP key to end recording SignalViewer allows to record data to standard wav files Caution 1 Recording data takes a lot of disk space 10 5MByte per minute Caution 2 Processor overload may lead to buffer overrun This may happen when starting another program while recording moving around windows etc SignalViewer will try to
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9. 1 channel modules 610nV Bit 61 uV Bit SWITCH 2 Vec O_ 5V 150mA max SWITCH 13 IFI i Doppler Signal in phase used by single channel modules 4 GND O S o 5 VCO O 0 5 2V FM output from DAC 0 8V if not used Pin configuration allows direct plug in of RFbeam radar sensors like K LC1 RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 10 17 RFbeam Microwave GmbH ST100 Starterkit User Manual X3 Direct Input This input is intended for use of radar sensors with integrated high gain IF amplifier like the RFbeam K MC1 module You may select different inputs by DIP switch This corresponds to the different outputs of RFbeam K MCx series modules Pin Configuration Gain Setting Pin_ Signal V O Description CT RRemark _______ 141 GND O O0Vtosensor enable input Enable signal alwais active Gain 0dB Gain 0dB 2 Vec O _ 5V 150mA max ee o ae r a Ta 3 GND vo ov _ S o O pre HE SWITCH 4 IFHLQ 1 Doppler Signal Q quadrature _ from high gain sensor output 5 IF HII fI Doppler Signal I in phase from high gain sensor output 6 fvco _ O 38V OV output 2 5Vifnotused _ _ _ 7 JIFLO_I 1 Doppler Signal in phase from low gain sensor output 8 IFLO_Q I Doppler Signal Q quadrature _ from low gain sensor output Pin configuration allows flat cable connection to RFbeam radar sensors like K MC1 X6 Raw Signals All important radar signals are
10. RFbeam Microwave GmbH ST100 Starterkit User Manual 2010 RFbeam Microwave GmbH www rfbeam ch 05 April 201 1 Page 1 17 RFbeam Microwave GmbH ST100 Starterkit User Manual Quick Start RFbeam ST100 Starterkit consists of a PCB motherboard a K LC1 radar module and a flexible acquisition software called RFbeam SignalViewer ST100 hardware serves as USB sound system without the need of installing driver software Setting Up ST100 Hardware X1 High Gain Input For native radar modules without integrated IF amplifier X2 Low Gain Input For radar modules with integrated IF amplifier X3 Direct IF Input For modules with integrated high gain IF amplifier X4 9VDC optional If ST100 is used without USB Ta F ae X5 USB 1 Interface we FELUS Ei exe HN om EE For use with RFbeam SignalViewer X6 Signal Testpoints Connect multimeters and oscilloscope to view raw signals Contains also analog outputs to playback recorded radar waveforms Sel Input Selector Signals to be sent to RFbeam SignalViewer Software Fig 1 ST100 Starterkit with RFbeam K LC1 plugged into X1 connector N RFbeam K LC1 radar module is susceptible to electrical discharge Before plugging the module please touch first the ST100 board and then insert the K LC1 device Plug in your RFbeam K LC1 module into connector X1 Set all DIP switch positions to OFF This will select X1 with high gain amplifier Connect ST100 hardware with a USB c
11. able to your PC Your PC will show messages like new hardware found ST100 acts as an audio subsystem Windows will assign native audio system drivers to the USB port EAN a SignalViewer Software Installation RFbeam SignalViewer is a Windows 2000 XP Vista Win7 program and runs under a LabVIEW runtime system Please use the installation description according to your operating system First installation will take some minutes Installation description for Windows XP Installing from CD 1 Insert RFbeam SignalViewer CD and run setup exe If your computer does not already contain a LabVIEW runtime engine you will be asked to accept licences of National Instruments If possible accept all default program locations Troubleshooting will be simplified like this Please be patient while LabVIEW runtime system is being installed You will find SignalViewer under START gt PROGRAMS gt RFbeam gt SignalViewer or on the Desktop samt eal RFbeam Microwave GmbH www rfbeam ch 05 April 201 1 Page 2 17 RFbeam Microwave GmbH ST100 Starterkit Installing from Download User Manual 1 Download SignalViewer Software from www RFbeam ch you must get registered 2 Extract the zip archive to your harddisk 3 If possible accept all default program locations Troubleshooting will be simplified like this 4 Please be patient while LabVIEW runtime system is being installed 5 You will find SignalViewer under START gt PROGRAMS
12. al Listen Levels Advanced ST100 Change Icon Controller Information USB Audio CODEC Properties Generic USB Audio Jack Information No Jack Information Available Device usage Use this device enable 7 OK Cancel Apply 10 Goto the Levels tab and place the SignalViewer beside it Now adjust the level until the level in the Signal Viewer is 120dBm Then close the Signal Viewer a Microphone Properties r r General Listen Levels Advanced Microphone eae Q 2 2 60 2 z T m E oe rh 4 RS E E S S EE E I I l 1 0 0 01 0 2 0 3 0 4 0 5 0 6 0 7 08 09 J 1 0 Channel 1 o df Hz 54 ie a Genet Goi 11 Switch to the Advanced tab set the format to 2 channel 16 bit 44100 Hz CD Quality and press the OK Button for twice to close the control panel A Sound a Playback Recording Sounds Communications im Microphone Properties General Listen Levels Advanced Select a recording device below to modify its settings 7 Mikrofon y Default De ice A CD Audio d Default Format Select the sample rate and bit depth to be used when running in shared mode 2 channel 16 bit 44100 Hz CD Quality r Exclusive Mode wr 3 Allow applications to take exclusive control of this device sei nee ADEC Give exclusive mode applic
13. ations priority Configure Set Default v Restore Defaults RFbeam Microwave GmbH www rfbeam ch 05 April 201 1 Page 6 17 RFbeam Microwave GmbH ST100 Starterkit User Manual Test Configuration and Go 1 Be sure the SignalViewer is closed and the ST100 is disconnected from your PC 2 Restart the PC 3 Connect the ST100 to your USB port and start the SignalViewer software 4 Set the Device to ST100 USB Audio CODEC 5 Set the DIP switch on ST100 to jonjonjon and check the level in the SignalViewer It should be about 120dBm If not repeat the config steps from the Chapter Configure ST100 on Page 4 6 Plug K LC1 module to connector X1 7 Setthe DIP switch on ST100 to offloffloff 8 Play with the settings of SignalViewer 9 Use context help from menu move over frontpanel controls to get explanations Remark K LC1 module has one channel 1 only The picture below shows and Q signals of a 2 channel K MC1 module Please refer to RFbeam SignalVi File Operate Help il Read Buffer State Device 1 ST100 USB Audio J 1 EXIT F12 ka Spectrum Memory FFT FREEZE 0 QIRMS averaging 22 F2 2 a E MEMORY Speed km h ep x Save F8 Clear F9 s 100 s CURSORS kHz Level On Off 120 Mat ca 009 47 ei 140 a I I I I I I I I I a
14. ce 0 T100 USB Audio Spectrum aN Memory ice 4 FFT RMS averaging r 2 MEMORY CURSORS kHz Level ci 0 09 45 c2 J 0 31 58 cl c2 14 cHi A cHo E Y Range Y 0 5 oS J 02 3 N 0 5 4 10 Timebase ms div Stereol way 19 2 MB Fig 2 SignalViewer showing a person approaching the K MC1 stereo sensor RFbeam Microwave GmbH www rfbeam ch 05 April 2011 Page 3 17 RFbeam Microwave GmbH ST100 Starterkit User Manual Installation description for Windows 7 and Vista Installing from CD 1 a Insert RFbeam SignalViewer CD and run setup exe If your computer does not already contain a LabVIEW runtime engine you will be asked to accept licences of National Instruments If possible accept all default program locations Troubleshooting will be simplified like this Please be patient while LabVIEW runtime system is being installed You will find SignalViewer under START gt PROGRAMS gt RFbeam gt SignalViewer or on the Desktop Installing from Download 1 Download SignalViewer Software from www RFbeam ch you must get registered 2 Extract the zip archive to your harddisk 3 If possible accept all default program locations Troubleshooting will be simplified like this 4 Please be patient while LabVIEW runtime system is being installed 5 You will find SignalViewer under START gt PROGRAMS gt RFbeam gt SignalViewer or on the Desktop Configure ST100 1
15. e offset Frequency range Gain Resolution Input X3 Channels Input resistance Input voltage range Frequency range Gain Resolution FM Output X1 X3 FM voltage range at X1 X2 FM voltage at X1 X2 no operation FM voltage range at X3 FM voltage at X3 no operation FM frequency range DAC Output X6 Output voltage range Output voltage no operation FM frequency range RFbeam Microwave GmbH User Manual Conditions Notes Symbol Min Max Unit a P R E nwan a aa Absolute maximum ratings w os ss and Waaa O O O channel ee kOhm 200 _ mv as as e Hz emeena do a oo la and Q channel rs ee eee ee ft kn nooffsetrequired Ss ee Hz esena fe La and enact O OO channel ee S r kOhm s a See X3 Direct Input E Se E See X3 Direct Input 61uV Bit Not used in SignalViewer 0 2 v no signal sent to DAC te Vem 2 V 03 50 v Vevo V ae a o o ae Not used in SignalViewer a ae DAC values 32767 32768 no signal sent to DAC 1 75V V sampling rate 44 1kHz ee 0 20k Hz Note 1 ST100 Hardware before Rev B X1 requires a positive offset as delivered by K LCx modules This is not the case with some radar modules of our competitors Note 2 Sending 0 to the DAC does not correspond to the no signal DAC output value RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 15 17 RFbeam Microwave GmbH T100 Starterkit User Manual FAQ Q Do need
16. g System Requirements RFbeam ST100 Starterkit including USB cable RFbeam SignalViewer Software Windows 2000 XP Vista Win7 Personal Computer Min 512MB RAM Min Pentium 4 Processor with gt 1 8GHz Clock USB 1 1 Interface Optional USB FTDI cable for digital output RFbeam Microwave GmbH www rfbeam ch 05 April 201 1 Page 8 17 ST100 Starterkit ST100 Hardware Circuit description Overview ST100 Starterkit consists of two dual channel low noise amplifiers a dual 16Bit ADC a dual 16Bit DAC and an USB interface ADC and DAC are parts of an audio codec that behaves like an USB sound device No driver software is required to operate the codec All important signals are wired to connector X6 These signals may be used to connect addi tional measurement equipment like scopes and multimeters ADC Inputs ST100 provides 3 inputs X1 X3 for radar front ends The inputs differ in sensitivity and physical outline Input signals may be selected by a DIP switch and are routed via a multi plexer to the ADC codec There is always an input pair called HI and LO This refers to the gain or signal amplitude at the ADC input RFbeam ST100 Starterkit 5 Pin Low Gain 2x4 Pin Direct Line Bi Radar Module Connectors 5 Pin High Gain Fig 4 Block diagram 2010 RFbeam Microwave GmbH www rfbeam ch RFbeam Microwave GmbH User Manual DAC Outputs DAC outputs may be used for generating VCO co
17. hem instead of your radar front end This allows you to replay difficult situations over and over to analyse sensor behaviour or to optimise your acquisition software 1 Record data see chapter Streaming Data You may connect ST100 Starterkit in parallel to your sensor electronics 2 Connect X6 pins 15 and 17 to your sensor electronic Normally you must reduce signal level by an external voltage divider see tip below 3 Connect ST100 to USB port 4 Set Windows audio mixer master and wave to desired level normally to 100 5 Press PLAY to begin 6 Press PAUSE _1_ to loop 8192 samples 7 Move around in data stream with blue slider Tip Use an external resistive voltage divider to adapt levels to your sensor input External division ratio selected gain 5 1dB For gains see chapter Sensor Input Connectors Attenuating DAC signal by audio mixer is possible but means a loss of resolution Example You have recorded Signals at X1 with high gain set See chapter X1 High Gain Input External divider should attenuate 60dB 5 1dB 54 9dB or factor 438 RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 14 17 ST100 Starterkit Characteristics Parameter Operating conditions Supply voltage Supply Voltage Supply current Input voltage at any input Input X1 Channels Input resistance Required voltage offset Frequency range Gain Resolution Input X2 Channels Input resistance Required voltag
18. isition continues un background Help contains this manual now and is accessible also by F1 key eae Sa Changes from Version 2 0 to Version 3 0 1 There is anew speed viewer that you can enable or disable 2 Now you can manually set the input device over a drop down list 3 State of the checkbox File to DAC and the path of the stream file dialog will be saved and restored when you restart the SignalViewer 4 The speed display works now correctly at speeds higher than 100 km h Changes from Version 3 x to Version 3 2 Control for external digital output of Peak Found signal added See chapter External Digital Output User Manual Revision History 1 0 18 Oct 2007 2 0 04 Jan 2008 1 New signal names at connectors DC become LO AC become HI These changes correspond to ST100 Rev B Hardware 2 Adaptations to SignalViewer Software Version 2 0 and higher oo a Mar 2010 Adaptions to SignalViewer Software Version 3 0 19 May 2010 Bugfix in Figure 4 34 April 2011 Remark in the introduction FMCW and FSK Not possible with ST100 3 2 12 July 2011 Software V3 2 Digital Output added See chapter External Digital Output RFbeam does not assume any responsibility for use of any circuitry described no circuit patent licenses are implied and RFbeam reserves the right at any time without notice to change said circuitry and specifications RFbeam Microwave GmbH www rfbeam ch 12 July 2
19. ntrol voltages for FMCW or FSK operation of RFbeam radar modules One channel of DAC is level shifted and wired to all radar connec tors to provide VCO control On the other hand both DAC outputs may also be used to playback recorded radar signals These signals are buffered and available as low impedance signals at connector X6 Power Supply Power supply is normally derived from the USB port and converted to low noise supply voltage Codec and radar modules at X1 X3 are supplied by this low noise voltage If there is a heavy load gt 150mA at the X1 X3 connectors an additional 9VDC power supply may be plugged in at X4 Input select gt ee ee 61uV Bit O D pe O O 2 o 5 lt o Raw Signals Level Shifter 19 May 2010 Page 9 17 RFbeam Microwave GmbH ST100 Starterkit User Manual Sensor Input Connectors X1 High Gain Input For native radar modules without integrated IF amplifier X2 Low Gain Input For radar modules with integrated IF amplifier X3 Direct IF Input For modules with integrated high gain IF amplifier a en a a a a a e a BEJ os zea ak X4 9VDC optional If ST100 is used without USB t a MIE a X5 USB 1 Interface a ogz tnteze Ges sac ste coo i For use with RFbeam SignalViewer X6 Signal Testpoints Connect multimeter and oscilloscope to view raw signals Contains also analog outputs to playback recorded radar waveforms Sel In
20. put Selector Signals to be sent to RFbeam SignalViewer Software Fig 5 ST100 Starterkit Connectors X1 High Gain Input X1 high gain input is optimized for using radar modules without IF amplifier RFbeam K LC1 e g Two gains may be selected by DIP Switch Low gain often is used for FMCW operation because high gain amplifiers will clip signals resulting from VCO sweep Pin Configuration Gain Setting l Pm Sga WO Deseipton Rema OAV BVID 1 J IFQ i Doppler signal Q qadrature not used with 1 channel modules SWC 2 Voc O 5V 150mA max C 3 IFI i Doppler Signal in phase used by single channel modules 4 GND_ VO S G 1 2 3 5 VCO O 0 5 2V FM output from DAC 0 8V if not used Pin configuration allows direct plug in of RFbeam radar sensors like K LC1 Note In ST100 Rev A radar module must provide a DC output offset of gt 10mV for proper operation This is true for all RFbeam modules without integrated IF amplifier For modules with no or negative DC offset use X2 connector X2 Low Gain Input X2 low gain input is used for radar sensors with integrated low gain IF amplifier typically 20 26dB This inputs are also interesting for FMCW operation if gain of X1 leads to signal clipping Pin configuration allows direct plug in of RFbeam radar sensors like K LC1 Pin Configuration Gain Setting Pin Signal VO Desoipion Rema i yo L Gain od 11 IFQ i Doppler signal Q qadrature not used with
21. r FMCW and FSK Q What are the changes in ST100 hardware Rev B A Difference is mainly a capacitive AC instead of DC coupling of the HI signals at connector X1 Therefore these inputs become independent of mixer DC offset voltages of the radar transceiver This allows connections of non RFbeam radar sensors at X1 Q Why is my SignalViewer so slow in Windows Vista A Windows Vista is very resource hungry Try using a Windows XP or Windows 7 computer with at least a Dual Core processor RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 16 17 RFbeam Microwave GmbH ST100 Starterkit User Manual SignalViewer Software Update History Changes from Version 1 x to Version 2 0 1 All Buttons are accessible also by keyboard Fx keys 2 No more program exit in case of buffer overflow Instead a new indicator Read Buffer State has been introduced In case of buffer overflow it changes to red color Buffer overflow may happen if processing power is restricted windows are dragged around or additional programs are started Function with Checkbox File To DAC is reliable now At program start File To DAC is always disabled During Stream operation elapsed time is displayed When selecting an existing file to stream a warning message appears There are new Buttons Rewind and Pause for play control Previous Button Pause is called now Freeze and freezes displays only Acqu
22. recover the file Maybe you have to restart a new stream Data will be recorded by the levels displayed by SignalViewer i e the signals at ADC input Filters and triggers do not apply to the recorded signals Pause key will freeze recording Press continue to resume recording RFbeam Microwave GmbH www rfbeam ch 12 July 2011 Page 13 17 RFbeam Microwave GmbH ST100 Starterkit User Manual Playback Data 1 Press PLAY File to playback files 2 Select file 3 Press STOP key to return in realtime mode In Play Mode SignalViewer can display wav files streamed from ST100 Starterkit or other standard 44 1kHz 16Bit Stereo WAV files analysing Data AUSE i key to interrupt playing 2 Move around in the file with the blue slider 3 Resume to playback with PAUSE CONTINUE key There will always be 8192 samples in the display buffer for scope and FFT display Writing To DAC Output This feature may be used to simulate radar signals from a radar frontend like K LC1 1 Check File to DAC checkbox to output file data on connector X6 see chapter X6 Raw Signals 2 Set Master Volume and WAV Volume of Windows audio mixer to maximum 3 Press PLAY File 4 Signals are output continuously Data appears with 33 9uV Bit at X6 if audio volume is set to maximum 5 Toggle PAUSE _ key to freeze output and loop 8192 samples frame time 185ms Simulate Radar Front End You may playback recorded radar signals and use t
23. s tab set the level to 100 and press OK Set the DIP switch on the ST100 to onjon on Switch to the Recording tab and search the ST100 mostly named as microphone with the description USB Audio CODEC and check that it is not set as default device The default device has a green hook in his icon Then select the ST100 and press the Properties button RFbeam Microwave GmbH www rfbeam ch RFbeam Microwave GmbH User Manual Playback Recording Sounds Communications Select a playback device below to modify its settings Lautsprecher High Definition Audio Gerat Default Device Digitalaudio S PDIF High Definition Audio Ger t Ready Speakers USB Audio CODEC Configure Speakers Properties General Levels Enhancements Advanced Speakers Qe e none SWITCH H ON 1 2 3 Playback Recording Sounds Communications Select a recording device below to modify its settings Mikrofon igh Definition Audio Gerat jaf ivite Default Device CD Audio High Definition Audio Gerat Currently unavailable Microphone USB Audio CODEC Ready Configure Set Default 05 April 201 1 RFbeam Microwave GmbH ST100 Starterkit User Manual 9 Inthe General tab change the Name to 4 Microphone Properties ST100 and change the icon Gener

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