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PeakTech 4130, Руководство по эксплуатации

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17 

 

Basic Settings 

FREQ 

 

Set the frequency parameter of analyzer. The analyzer sweeps within a specified 
range, and the sweep will start once you change this parameter.  
The  frequency  range  of  current  channel  can  be  expressed  by  either  of  two 
groups  of  paramenters:  Start  Frequency/Stop  Frequency

（

f

start

/f

stop

）

,  or  center 

Frequency/Span

（

f

center

/f

span

）

.  If  any  one  of  them  is  adjusted,  other  three 

parameters will be changed accordingly to ensure their coupling relationship. 

f

center

=

（

f

start

-f

stop

）

/2 

f

span 

= f

stop 

- f

start 

 

Center Frequency 

Enable the center frequency function, to allow a frequency displays in center be 
selected.  When  pressed,  the  frequency  mode  is  switched  to  Center 
Frequency/Span  for  input.  In  this  mode,  parameters  you  specified  are  always 
shown at the lower right and left side of the display grid. 

 
Key points:  

 

The  start  and  stop  frequencies  vary  with  the  center  frequency  when  span  is 
constant.

 

 

Changing  the  center  frequency  horizontally  shifts  the  current  sweep  channel 
and the adjustment is limited by the specified range in datasheet. 

 

In  the  Zero  Span  mode,  start  frequency,  stop  frequency  and  center  frequency 
are always equal.  

 

User can modify this parameter by numeric keys, knob and arrow keys. 
Table 2-1 Center Frequency  

Parameter 

Description  

Default 

0.75GHz (P4130); 1.1GHz (P4135); 1.5GHz (P4140)  

Range

 

0Hz ~ 1.5GHz (P4130); 0Hz ~ 2.2GHz (P4135) 
0Hz ~ 3.0GHz (P4140)

 

Unit  

GHz, MHz, kHz, Hz  

Knob Step  

Span>0, step=span/200 
Span=0, step=RBW/100, Min=1 Hz  

Arrow Keys Step   CF step  

 

Start Freq 

Set  the  start  frequency  of  current  channel,  displays  at  the  left  scale.  When 
pressed, the frequency mode is switched to Start Frequency/Stop Frequency for 
input. In this mode, parameters you specified are always shown at the lower left 
and right side of the grid. 

Key points:  

 

The span and center frequency are changed automatically according to the start 
frequency.  The  change  of  the  span  would  have  influence  on  other  system 
parameters. For more details, please refer to “Span”.  

 

In  Zero  Span  mode,  the  start  frequency,  stop  frequency  and  center  frequency 
are always equal.  

 

You can modify this parameter using the numeric keys, knob, or arrow keys.  
Table 2-2 Start Frequency  

Содержание 4130

Страница 1: ...PeakTech 4130 4135 4140 Operation manual Digital Spectrum Analyzer ...

Страница 2: ...alyzer with covers or panels removed Use proper fuse Only fuse specified by the Spectrum Analyzer is allowed Do not expose circuit Do not touch exposed connectors and components when the unit is powered Do not operate with suspected failures If you suspect a failure of this product please contact PEAKTECH authorized maintenance personnel to detect Any maintenance adjustment or parts replacement mu...

Страница 3: ... or other devices that is connected with it once you carry out this operation Caution Indicates a protential hazard once you carry out this operation Symbols on the product The following symbols may appear on the product Maintenance and cleaning Maintenance Do not place the instrument in the sunlight for a long time Clean Clean the instrument regularly according to using status Method is as follow...

Страница 4: ...range 9 kHz to 3 0 GHz P4140 2 2GHz P4135 or 1 5GHz P4130 Display Average Noise Level DANL 135 dBm Typical value Phase noise 80 dBc Hz offset 10 kHz Full amplitude precision 1 0 dB Resolution Bandwidth RBW 10 Hz Various measurement function and auto setting function Multi window display accurate measurement Equipped with preamplifier and AM FM demodulation function Tracking generator included High...

Страница 5: ... describes the functions of the keys on the front panel and introduces menu functions of each key in detail Chapter 3 Remote Control This chapter introduces remote control methods of the Spectrum Analyzer Chapter 4 Specifications This chapter introduces the specifications of the Spectrum Analyzer Chapter 5 Appendix This chapter provides the accessories list and service and support information of t...

Страница 6: ... as center frequency indicates the center frequency menu option under FREQ key 3 Connector This guide usually uses brackets text bold to indicate a connector on the front or rear panel For example GEN OUTPUT 50Ω 4 Operating steps This guide usually uses an arrow to indicate the next step For example FREQ center frequency indictes pressing FREQ function key on the front panel then pressing center f...

Страница 7: ...req 17 Stop Freq 18 CF Step 18 Signal Track 19 2 SPAN 19 Span 19 Full span 20 Zero span 20 Last span 20 3 AMPT 20 Auto Scale 20 Ref Level 21 Input Atten 21 Scale Div 22 Scale Type 22 Y axis Units 22 Ref Offset 23 Auto Range 23 Int Preamp 24 Max Mix Level 24 4 BW 25 RBW 25 VBW 25 V R Ratio 25 Detector Type 26 5 Sweep 27 Time 27 Mode 27 Single 28 Points 28 SWT Count 28 Trigger Type 29 Trigger Setup ...

Страница 8: ...rch 37 Next Peak 37 Peak Right 37 Peak Left 37 Peak Min 37 Peak P P 37 Cont Peak 37 Peak Para 37 Peak Table 38 9 Marker 39 Marker CF 39 Marker Step 39 Marker Start 39 Marker Stop 39 MarkerΔ Span 39 Marker Ref 39 10 AUTO Tune 40 11 Display 40 Display line 40 Full screen 40 Active Fctn 41 Screen Off 41 12 Preset 41 13 System Setup 42 Language 42 Reset 42 I O Setting 42 Ref Source 42 14 Source 42 Sou...

Страница 9: ... Bandwidth OBW 44 Chapter 3 Remote control 45 Chapter 4 Specifications 46 Frequency 47 Amplitude 48 Sweep 49 Trigger 49 Trakcing source 50 Input output 50 General characteristics 50 Chapter 5 Appendix 51 Standard accessories 51 Optional accessories 51 Options 51 ...

Страница 10: ...hapter introduces the front and rear panels user interface and notes for first operation of the Spectrum Analyer The contents of this chapter are as follows Initial inspect Outlook and dimensions Front panel Rear panel Parameter setting ...

Страница 11: ...cturer 3 Check the accessories Check the accessories according to the packing list if damaged or missing please contact your PeakTech distributor Outlook and dimension Data Spectrum Analyzer 9kHz 3 0GHz RF INPUT 50Ω MAX 30dBm 50V DC MAX 50V DC GEN OUTPUT 50Ω 0 μ Hz V kHz 1 2 3 mV dBm MHz 4 5 6 9 8 7 dBm GHz Search Peak Auto Tune Single Display Trigger BW Sweep Marker Source CAL Setup System Recall...

Страница 12: ...urve at the end Perform self calibration Please perform self calibration after boot Press CAL Calibration Immediate calibration to process self calibration for the system with the internal calibration source of the system Front panel Data Spectrum Analyzer 9kHz 2 2GHz RF INPUT 50Ω MAX 30dBm 50V DC MAX 50V DC GEN OUTPUT 50Ω 0 μ Hz V kHz 1 2 3 mV dBm MHz 4 5 6 9 8 7 dBm GHz Search Peak Auto Tune Sin...

Страница 13: ...plifier BW Set resolution bandwidth RBW and vedio bandwidth VBW and V R ratio Sweep Set parameters like sweep time mode etc Trigger Set informations about trigger Single Set single trigger of the instrument Display Set informations about screen display Auto Tune Auto tune of full frequency range Marker Read amplide frequency or sweep time etc of each point on trace through the marker Marker Set ot...

Страница 14: ...e Set tracking source CAL Set information about the auto calibration of the instrument Trace Set parameters of trace Detector Set detection mode of detector System Setup Set parmaters of system Triger Set information about trigger Save File save and read function Recall Recall saved data and information Preset Reset system to factory default state or user defined state ...

Страница 15: ...232 cable 3 TRIGGER IN When the Spectrum Analyzer is under external trigger mode this connector receives an external trigger signal The external trigger signal is input to the Spectrum Analyzer through BNC cable 4 10MHz IN OUT Realize reference clock input output through BNC cable 5 AC Power Connector The AC power specifications that this instrument supports is 100 V 240 V 45 Hz 440 Hz 6 USB Devic...

Страница 16: ...nu that pops up 2 Use adjusting knob In the parameters editable state turn the knob to increase clockwise or decrease counter clockwise parameters at specified steps 1 Press FREQ Center frequency 2 Turn the knob to get desired parameter value 750 MHz 3 Use direction keys In the parameter editable state the direction keys can be used for the progressive increment or decrement of the parameter value...

Страница 17: ...6 Chapter 2 Basic operation The contents of this chapter are as follows Basic Settings Sweep and Functions Settings Measurement Settings The using and function settings of Marker Shortcut System Settings ...

Страница 18: ...ep channel and the adjustment is limited by the specified range in datasheet In the Zero Span mode start frequency stop frequency and center frequency are always equal User can modify this parameter by numeric keys knob and arrow keys Table 2 1 Center Frequency Parameter Description Default 0 75GHz P4130 1 1GHz P4135 1 5GHz P4140 Range 0Hz 1 5GHz P4130 0Hz 2 2GHz P4135 0Hz 3 0GHz P4140 Unit GHz MH...

Страница 19: ...switches the channel to be measured Key points Setting for CF step could be Manual or Auto In Auto mode CF step is 1 10 of span for non zero span and equals the RBW for zero span In Manual mode user can input data by numeric keys After setting of appropriate CF step and center frequency user can switch the measured channel with specified step by Up Down keys in order to sweep the adjacent channels...

Страница 20: ...uency of this point as center frequency and hold the signal at the center of screen If no marker is active when Signal Track is on Marker 1 is enalbled and executes a peak searching set the current peak frequency as center frequency and hold the signal at the center of the screen In continouse sweep the system tracks continuously In single sweep only track one signal In zero span Signal Track is i...

Страница 21: ... Full Span Set the span of analyzer to be maximum Zero Span Set the span of analyzer to be 0Hz In this case stop frequency and start frequency are both equal to center frequency the horizontal axis denotes time The analyzer here is measuring the time domain characteristics of amplitude where frequency point is Key points In zero span mode the analyzer displays the time domain characteristic of fix...

Страница 22: ... by combination of maximum mixing level input attenuation and preamplifier When adjust it the input attenuation is adjusted under a constant max mixing level meeting LRef a RF a PA and Lmix denote reference level input attenuation preamplifier and maximum mixing level You can modify this parameter by numeric keys knob and arrow keys For more details please refer to Paramter Input Table 2 6 Referen...

Страница 23: ...og scale type Y axis denotes the logarithmic coordinate top grid shows reference level and the grid size is equal to the scale value The unit of Y axis will be switched to be dBm as default when the scale type is changed from Lin to Log In Lin scale type Y axis denotes linear coordinate top grid shows reference level and bottom grid is 0V the grid size is10 of the reference level and scale setting...

Страница 24: ...to Range only applicable for models selected with this function Auto change the amplitude parameters whitin current span for easy view of the signal display in main screen Figure 2 4 Before Auto range Figure 2 5 After Auto range Key points The difference between Auto Range and Auto Scale is that Auto Range can solve the overrange problem caused by parameter setting and adjust the max mix level to ...

Страница 25: ... signal Key points For bigger input signal select small max mixing level in order to increase input attenuation and reduce distortion For smaller input signal select big max mixing level in order to reduce input attenuation and distortion Paramter in formula 2 3 are always changing on the basis of max mixing level You can modify this parameter by numeric keys knob and arrow keys For more details p...

Страница 26: ...h by RBW and VBW In Auto mode VBW will change with RBW but not affected by RBW in Manual mode You can modify this parameter by numeric keys knob and arrow keys For more details please refer to Parameter Input Table 2 13 VBW V R Ratio Set the ratio of VBW to RBW If the response of signal is very close to noise level to avoid the signal to be covered by noise you need to set the ratio less than 1 to...

Страница 27: ...th very small resolution which is very helpful for EMC test 2 Neg Peak Search the minimum from the sampling data segment and display it at the corresponding pixel 3 Sample Sample type shows the transient level of the center time in corresponding interval for each pixel of curve If the span is far bigger than RBW the detector will not be such reliable So sample type is only applicable for Noise sig...

Страница 28: ...est sweep time according to current parameter setting such as RBW VBW and so on Decreasing sweep time will speed the measurement But if your specified time is less than the shortest sweep time in Auto coupling it will lead to error in measurement and UNCAL will be shown at the status bar of the screen You can modify this parameter by numeric keys knob and arrow keys Table 2 15 Sweep time Note in n...

Страница 29: ...sired points for each sweep That is the points of current trace Key points When sweep time is limited by smapling rate of ADC Analog to Digital Converter modifying the sweep numbers will affect sweep time That is the more pionts the longer sweep time wil be Modifying the numbers also influences other system parameters so sytme will restart sweep and measure You can modify this parameter by numeric...

Страница 30: ...ger level line and value will be shown in the screen You can modify this parameter by numeric keys knob and arrow keys For more details please refer to Parameter Input Table 2 18 Trigger level Note This is in conncetion wit unit of current selected Y axis 2 Trig Edge Set the trigger edge in External mode to Pos or Neg of Pulse Trace Sweep signal is shown as trace on screen Select Trace Analyzer ca...

Страница 31: ...erated in successive sweeps 4 Video Avg Display the trace after a logarithmic mean is calculated for each point of the trace in successive sweeps Traces in this type are smoother 5 Power Avg Display the trace after an average for each point of the trace in successive sweeps Traces in this type are smoother 6 View Hold and display the amplitude data of selected trace Register stop updating trace da...

Страница 32: ... B from Trace 1 Trace2 or Trace 3 The default is Trace 1 T2 4 Constant Set the value of constant for math trace You can modify this parameter by numeric keys For more details please refer to Parameter Input Table 2 20 Constant in math operation 5 Operate Enable or disable the display of math trace the default is off All Clear Clear all trace on screen Advanced measurement stop when as there is no ...

Страница 33: ...e marker pressing this key will enable a marker at the palce of center frequency for current trace If there is active marker it will be enalbled after pressing this key You can shift the marker by numeric keys knob and arrow keys and the readout of current marker will be shown at the upper right of screen The resolution of X axis frequency or time readouts corresponds to the span you can lower spa...

Страница 34: ... indicated with number and letter R like 1R and Delta Marker indicated with number and letter D like 1D Key points You can adjust the position of reference marker select reference and Delta Marker by numeric keys knob and arrow keys The difference between Delta Pair and Dalta you just can modify the delta point in Delta type but you can modifiy both delta point select Delta option and reference po...

Страница 35: ...ference between the marker and sweep start and the other types Delta Delta Pair and Span Pair show the sweep time difference between the Delta Marker and Reference Marker In Zero span mode the default readout type is Time 4 1 time In this type the analyzer shows the reciprocal value of time difference between the Delta Marker and Reference Marker When the sweep time difference is zero the displaye...

Страница 36: ...value by numeric keys knob and arrow keys For more details please refer to Parameter Input Table 2 22 N dB BW parameter settings 4 Function Off Disable the function of Noise Marker and N dB BW but not the markers Marker Table Open or close the marker table When the table opened all opened markers are listed on table and shown on the lower window of screen including Marker number Marker trace numbe...

Страница 37: ...uency counter opened the frequency readouts will be more accurate In Zero span mode the frequency counter is enabled to measure the frequency of center frequency nearby 2 Resolution You can set the resolution of frequency counter by Manual of Auto The available resolutions are 1 Hz 10 Hz 100 Hz 1 kHz 10 kHz and 100 kHz Table 2 23 The resolution of frequency counter Parameter Description Default 1 ...

Страница 38: ...e nearest peak on the left of current peak and meets the searching condition If there is no peak on the left marker will not move Peak Min Search and mark the minimum amplitude on trace Peak P P Search the Peak and Minimum at the same time and then mark them by Delta Pair Peak is marked by Delta and Minimum is marked by Reference Cont Peak Turn on or off the Continue Search the default is off When...

Страница 39: ...plitude displayed The table allows 10 peaks to be shown at most The opened peak table can be saved in the external memory also can be recalled when needed User can press Save key to store the data detail method is descriped in Save 1 On Off Turn on or off the Peak Table the default is Off 2 Peak Sort Set Frequency or Amplitude for peak displayed order the default is Freq 3 Peak Readout Set the dis...

Страница 40: ... frequency of current valid marker If Normal is selected the start frequency will be set to the frequency of current marker If Delta Delta Pair or Span Pair is selected the start frequency will be set to the frequency where Delta Marker is In Zero span mode this function is invalid Mkr Stop Set the stop frequency of analyzer to be the frequency of current valid marker If Normal is selected the sto...

Страница 41: ...tenuation and max mixing level will be changed during the searching progress Display Control the screen display of the analyzer such as the display line full screen active area and Scr State Display Line Turn on or off the display line or changes its location which can be used for reference of readouts or threshold value for the peaks displayed in the peak value Key points Display line is a horizo...

Страница 42: ...e function is displayed for convenient view of the trace Optional is Top Center Bottom the default is Top Screen Off Turn on or off the display the default is On Preset When this key pressed the system will return to Factory settings or user defined state ...

Страница 43: ...ecified Preset Type under any operation menu 3 Save Preset Save the current instrument settings I O Settings The analyzer supports communication trough the LAN USB and RS232 interface 1 I O interface Enalbe the LAN USB and RS232 or disable the all 2 LAN Set the information for LAN 3 USB Set the information for USB 4 RS232 Set the information for RS232 Ref Source Select the internal or external ref...

Страница 44: ... Power measurements first make the Channel Power Level to be On there will be two options Power Max and Power Min CP Max set the maximum of level CP Min set the minimum of level For example to measure a transmitter module with the power channel ranges from 10dBm to 0dBm you can set the max power to be 0dBm and min power to be 10dBm The setting for Power Density Level parameters is same Adjacent Ch...

Страница 45: ...cupied bandwidth percentage is 99 Select OBW measurement under Meas function and press Meas Setup to set corresponding parameters which includes Max Hold Pwr OBW Span n dB and Limits Max Hold enables or disables the Max Hold default is Off When enabled the function of which is same as the one of Trace Pwr sets the occupied bandwidth percentage that is the percentage of signal power occupied within...

Страница 46: ...S 232 remote interface This chapter introduces the basic information and method of remote control of the instrument The contents of this chapter are as follows Remote control overview refer to the Spectrum Analyzer software instructions Remote control method refer to the Spectrum Analyzer software instructions ...

Страница 47: ...46 Chapter 4 Specifications Warm up for 30 minutes before operation The instrument is within calibration period and self calibration has been done ...

Страница 48: ...n 1Hz 10Hz 100Hz 1kHz 10kHz 100kHz Counter uncertainty cursor frequency reading reference frequency uncertainty counter resolution Note frequency reference uncertainty aging rate period since adjustment temperature shift Note frequency reference uncertainty aging rate period since adjustment temperature shift 1 5 Frequency span Range P 4130 0Hz 100Hz to 1 5GHz P 4135 0Hz 100Hz to 2 2GHz P 4140 0Hz...

Страница 49: ...130 135dBm 6 x f 1GHz dB typical value 140dBm 30MHz to 2 2GHz P4135 30MHz to 3 0GHz P4140 2 4 Display level Logarithm scale 1dB to 200dB Linear scale 0 to reference level Number of display points 601 Numbers of traces 3 arithmetical trace Detection modes positive peak negative peak sample detection standard detection RMS average voltage Trace functions Clear write max hold min hold average view cl...

Страница 50: ...es Image frequency 60dBc Intermediate frequency 60dBc Residual response intrinsic 80dBm typical value Residual response other Local oscillators A D conversion subharmonic of first LO harmonic of first LO 60dBc Input related spurious Mixer level 30dBm 60dBc typical value 3 Sweep 3 1 Sweep Sweep time range P4130 100Hz span 1 5GHz Zero span 10ms to 1500s P4135 100Hz span 2 2GHz Zero span 10ms to 2200...

Страница 51: ...tput external trigger input Connector BNC female 10MHz reference input amplitude 0dBm to 10dBm 10MHz reference output amplitude 3dBm to 3dBm Trigger voltage 5V TTL level 7 General characteristics 7 1 Display Display type TFT LCD Display resolution 800 480 Pixels Screen 7 0 inch 7 2 Remote interface Standard interface LAN USB Host USB Device RS232 7 3 Power Input voltage 100V to 240V nominal AC Pow...

Страница 52: ...his manual or parts are reserved Reproduction of all kinds photocopy microfilm or other only by written permission of the publisher This manual considers the latest technical knowing Technical changes which are in the interest of progress reserved We herewith confirm that the units are calibrated by the factory according to the specifications as per the technical specifications We recommend to cal...

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