PeakTech 4135 User manual

PeakTech
®4130 / 4135 / 4140
Operation manual
Digital Spectrum Analyzer

1
Safety introduction
Summary
Before operating this instrument, read the following safety precautions to avoid
injury and prevent damage to this product or any products connected to it. For
safe operation, be sure to operate this instrument in accordance with the
provisions.
Use proper power cord
Only power cord that is recognized by the country where this instrument is located
is allowed.
Reliable grounding
This product is grounded through the grounding wire of the power cord. To avoid
electrical shock, before connecting any input or output terminal of the product,
make sure reliable connection between the grounding terminal of the power cord
of this product and protective earth terminal.
Check all terminal ratings
Check all ratings and markings on the product to avoid the impact of fire and
excessive current, please consult the manual for further ratings information before
any connections.
Overvoltage protection
Ensure that no excessive voltage (such as voltage caused by lightning or other
large voltage) reach the product. Otherwise the operator may have a risk of
electric shock.
Do not operate without cover
Do not operate the Spectrum Analyzer 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 must be performed by PEAKTECH authorized maintenance
personnel.
Keep proper ventilation
Try to ensure good ventilation, bad ventilation will cause temperature increase of
the instrument, thereby causing damage to it. Keep good ventilation when
operating, check the vents and fan regularly.
Operation environment
To avoid internal short circuit or electric shock, do not operate the instrument in a
damp environment.
Do not operate in an explosive atmosphere. To avoid equipment damage or
personal injury, do not operate the instrument in an explosive atmosphere.
Clean and dry
Keep product surface’s clean and dry to avoid dust or air moisture affecting the
performance of the instrument.
Electrostatic protection
It may cause damage to the instrument if interface is with static electricity, so
operate at anti-static area as much as possible to avoide static electricity when
handling and operating. Ground the inner and outer conductors of interface briefly

2
to discharge static electricity before connecting cable to the instrument.
Handling
To avoid instrument sliping down during handling which may damage the keys,
knob or interfaces and other parts on the panel, please pay attention to handling
safty
Safety terms and symbols
Terms in this guide. The following terms may appear in the guide:
Caution Caution statement indicate the conditions and behaviors that may
cause product damage or loss of data.
Warning Warning statement indicate the conditions and behaviors that may
endanger the lives and safety of the operating personnel.
Terms on the product. The following terminologies may apper on this product:
Danger Indicates an immediate injury once you carry out this operation.
Warning Indicates a probable damage to this product 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 follows:
1. To avoid electric shock, disconnect power before cleaning work.
2. Wipe the loose dust on the outside of the instrument with soft moist but not
dripping cloth (use mild detergent or water, but not dissolved thinner, otherwise
it will damage the designation strip or plastic parts). Be careful not to scratch
the LCD protector when cleaning instruments with LCD screen.
Caution：Do not let any corrosive liquid stain the instrument to avoid
damage.
Warning: Before re-energizing, make sure the instrument is completely
dry to avoid short circuit even personal injury caused by moisture.

3
Brief introduction of Digital Spectrum Analyzer
The PeakTech 4130 / 4135 / 4140 is a Spectrum Analyzer with compact design,
easy handling, high cost –performance ratio and various functions. It has a
keyboard layout which is easy to operate, high-definition color LCD screen and
various remote communication interfaces. It can be widely used in many fields
including education science, enterprise R & D and industrial production etc.
Main Features:
Frequency 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 stablility oscillator (optional)
7 inch high-definition screen (800×480 pixels), the image interface is simple
and clear which makes operation easy
Equipped with various interfaces, such as LAN, USB Host, USB Device, RS232
Compact design, weights only 6.0kg

4
Overview
Abstract：
Chapter 1 Getting started
This chapter introduces the front and rear panels, user interface and notes for first
operation of the Spectrum Analyer.
Chapter 2 Front and Rear panel operation
This chapter 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 the
Spectrum Analyzer.

5
Format specification：
1. Key：
This guide usually uses “text box+text (bold)” to indicate a key on front panel,
such as FREQ indicates FREQ key.
2. Menu：
This guide usually uses “character shading+text (bold)” to indicate a menu, such
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 frequency” menu softkey.

6
Content
Chapter 1 Getting started
9
Initial inspect
10
Outlook and dimension
10
Prepare for use
10
Front panel
11
Function keys on front panel
11
Rear panel
14
Parameter setting
15
Chapter 2 Basic operation
16
1. Basic Settings
17
Center Frequency
17
Start Freq
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
29
6. Trace
29
Select Trace
29
Trace Type
30
Average Times
30

7
Math
31
All Clear
31
7. Marker Measurement
32
Marker Select
32
Normal
32
Delta
32
Delta Pair
33
Span Pair
33
Off
34
Mark Trace
34
Readout
34
Marker Fctn
34
Select Marker
34
Noise Marker
34
N dB BW
35
Marker Table
35
Freq Count
36
8. Peak Search
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
Source
42
Amplitude
42
Normalize
42
15. Meas
43

8
Channel Power (CP)
43
Adjacent Channel Power (ACP)
43
Ocuupied 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

9
Chapter 1 Getting started
This chapter 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

10
Initial inspect
1. Inspect the transport package
Check the transport package and verify its contents is complete, keep the
package and fill material before testing the analyzer.
2. Inspect the unit
Please inspect the unit carefully, if its content is not complete, or the analyzer
does not pass the performance test, please contact your dealer or the
manufacturer.
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 DCMAX 50V DC
GEN OUTPUT 50Ω
0.μ
Hz
V
kHz
1 2 3 mV
-dBm
MHz
4 5 6
98
7+dBm
GHz
Search
Peak Auto
Tune Single Display
Trigger
BW
Sweep
Marker
Source CAL Setup
System
Recall
Preset
Save
Meas
r
ee
Dt Trace
cto
Demod
Count
Freq
Marker
AMPT
SPAN
FREQ
us
ms
sec
dB
Control
Marker
Utility
Setting
Front view Unit：mm
Planform Unit：mm

11
Prepare for use
Adjust the legs of the instrument
Open the legs of the Analyzer as bracket of the instrument to make it tilted
upward before operation, which makes the following operation and observation
more convenient. When the instrument is not in use, the user can close the
support legs to facilitate placement or removal.
Switching the power on
Connect the Spectrum Analyzer to AC power with the power cord from the
accessories, please refer to the introduction about the requirement of voltage and
frequency of AC power in the “Rear panel” section.
Boot examination
Connect power cord properly, then press the power switch on the front panel
to turn on the Spectrum Analyzer. The boot screen displays the boot initialization
process information, then displays sweep curve 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 DCMAX 50V DC
GEN OUTPUT 50Ω
0.μ
Hz
V
kHz
1 2 3 mV
-dBm
MHz
4 5 6
98
7+dBm
GHz
Search
Peak Auto
Tune Single Display
Trigger
BW
Sweep
Marker
Source CAL Setup
System
Recall
Preset
Save
Meas
r
ee
DtTrace
cto
Demod
Count
Freq
Marker
AMPT
SPAN
FREQ
us
ms
sec
dB
Control
Marker
Utility
Setting
①LCD display screen ②Adjusting knob ③Function key area ④Digit keys ⑤RF
input
⑥Direction keys ⑦Menu software/ menu control key ⑧USB Host ⑨Power
Function keys on front panel:
Data 98
7+dBm
GHz
Search
Peak Auto
Tune Single Display
Trigger
BW
Sweep
Marker
Source CAL Setup
System
Recall
Preset
Save
Meas
r
ee
DtTrace
cto
Demod
Count
Freq
Marker
AMPT
SPAN
FREQ
dB
Control
Marker
Utility
Setting

12
Table 1-2 Description of function keys on front panel
Function
key
Function description
FREQ
Set informations like center frequency, start frequency and
end frequency etc.
SPAN
Set the frequency range of sweep.
AMPT
Set parameters like reference level, RF attenuator, scale, Y-
axis units etc. Set level offset, the largest mixer and input
impedance. Used to perform automatic calibration, automatic
range and turn on the preamplifier.
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 other system paraters of the instrument with current
marker value
Freq Count
Set parameters like frequency count, resolution etc.
Peak Search
Unfold setting menu of peak search, and execute peak search
function simultaneously

13
Note：
*The function is only applicable for the unit selected with according options.
Demod
Config demodulation function **
Meas
Select and control measurement function **.
Source
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.

14
Rear panel
SHIJIAZHUANG SUIN INSTRUMENTS CO.,LTD.
10MHz IN/OUT
Trigger in
RS232
USB Device
LAN
VGA
REPLACE FUSE
AS SPECIFIED
DISCONNECT POWER CORD
BEFORE REPLACING FUSE
100-240V AC 50/60Hz
T 3A/250V
1. VGA port
This port provides VGA vedio signal output, connect this interface with VGA cable
2. RS-232 port
This port provides serial data output, connect this interface with RS-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 Device
The Spectrum Analyzer could connect with external USB device as “slave device”
7.LAN
This interface is used to connect the spectrum analyzer to the LAN to realize remote
control.

15
Parameter setting
Realize parameter input with numeric keys, adjusting knob or direction keys. This
section introducs thress parameter setting methods with an example (set center
frequency to 1500 MHz).
1. Use numeric keys
1) Press FREQ Center frequency;
2) Use numeric keys to input value “750”;
3) Select desired unit “MHz” from the unit menu 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 according to a certain step.
1) Press FREQ Center frequency;
2) Press the up / down direction key to get desired parameter value (750 MHz).

16
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

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（fstart/fstop）, or center
Frequency/Span（fcenter/fspan ）. If any one of them is adjusted, other three
parameters will be changed accordingly to ensure their coupling relationship.
fcenter=（fstart-fstop）/2
fspan = fstop - fstart
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

18
Stop Freq
Set the stop frequency of current channel, displays at the right 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 stop
frequency. The change of the span would have influence on other system
parameters. For more details, please refer to “Span”.
You can modify this parameter using the numeric keys, knob, or direction keys.
Table 2-3 Stop Frequency
*Note：The range is from 100 Hz to 3.0GHz in non-zero span.
CF Step
Set the CF step. User can modify the center frequency by fixed step continuously
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 manually.
You can modify this parameters by numeric keys, knob, or arrow keys.
Table 2-4 CF Step
Parameter
Description
Default
0 GHz
Range
0 Hz ~ 1.5GHz (P4130)
0 Hz ~ 2.2GHz (P4135)
0 Hz ~ 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
Parameter
Description
Default
1.5 GHz (P4130) ; 2.2 GHz (P4135); 3.0 GHz (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

19
Signal Track
Enable or disable the function of signal track. Tracks signals with unstable frequency
and less than 3dB transient variation in amplitude by placing Marker 1(refer to
“Marker Measurement”) onto the measured signal to track the variation continuously.
Progress of signal track as figure 2-1:
Figure 2-1
Key points:
When Signal Track is on, the ST icon is shown at the left of screen.
If an active marker exsits, when Signal Track is on, the analyzer will search and
mark the point (with no more than 3dB variation in amplitude) near the marker, set
the frequency 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 invalid.
SPAN
Set the span of analyzer. The frequency parameter varies with the span. Once
change the span, sweep will be restarted.
Parameter
Description
Default
150MHz (P4130), 220MHz (P4135), 300MHz (P4140)
Range
1 Hz ~ 3.0GHz (P4140); 2.2GHz (P4135) ; 1.5GHz
(P4130)
Unit
GHz, MHz, kHz, Hz
Knob Step
Span>0, step=span/200
Span=0, step=VBW/100, Min=1 Hz
Arrow Keys Step
In 1-2-5 sequency