multicomp pro MP700022 User manual

MP Series Spectrum Analyzer
User Manual

General Warranty
We warrants that the product will be free from defects in materials and
workmanship for a period of 3 years from the date of purchase of the
product by the original purchaser from the our Company. The warranty
period for accessories is 12 months. This warranty only applies to the
original purchaser and is not transferable to a third party.
If the product proves defective during the warranty period, we will either
repair the defective product without charge for parts and labour, or will
provide a replacement in exchange for the defective product. Parts,
modules and replacement products used by our for warranty work may be
new or reconditioned like new.All replaced parts, modules and products
become the property of our company.
To obtain service under this warranty, the customer must notify our of the
defect before the expiration of the warranty period. Customer shall be
responsible for packaging and shipping the defective product to designated
service centre, a copy of the customer's proof of purchase is also required.
This warranty shall not apply to any defect, failure or damage caused by
improper use or improper or inadequate maintenance and care. We shall
not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than our representatives to
install, repair or service the product; b) to repair damage resulting from
improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of not our supplies; or d) to
service a product that has been modified or integrated with other products
when the effect of such modification or integration increases the time or
difficulty of servicing the product.
Please contact the nearest Sales and Service Offices for services.
Excepting the after-sales services provided in this summary or the
applicable warranty statements, we will not offer any guarantee for
maintenance definitely declared or hinted, including but not limited to
the implied guarantee for marketability and special-purpose
acceptability. We should not take any responsibilities for any indirect,
special or consequent damages.

i
Table of contents
List of figures.....................................................................iii
List of tables.......................................................................iii
1. General Safety Requirements ........................................1
2. Safety Terms and Symbols............................................. 4
3. Document Overview .......................................................5
4. Quick Start....................................................................... 6
4.1 General Inspection...........................................................6
4.2 Safety Precaution before Operation.............................. 6
4.3 First Time to Power on ....................................................8
4.4 Front Panel........................................................................9
4.5 Rear Panel.......................................................................15
4.6 User Interface..................................................................17
4.7 Build-in Help....................................................................18
4.8 Basic Measurement.......................................................19
5. Menu Interpretation....................................................... 23
5.1 【FREQ】Frequency....................................................23
5.2 【SPAN】.......................................................................25
5.3 【AMPTD】Amplitude..................................................27
5.4 【Auto】Auto Tune.......................................................30
5.5 【BW】Bandwidth.........................................................30
5.6 【Trace】........................................................................32
5.7 【Detector】...................................................................34
5.8 【Display】.....................................................................36
5.9 【Sweep】......................................................................37
5.10 【Trig】.........................................................................38
5.11 【Source】...................................................................38
5.12 【Demod】Demodulation..........................................40
5.13 【Peak】......................................................................42
5.14 【Marker】...................................................................43
5.15 【Marker→】...............................................................46
5.16 【Marker Fctn】Marker Function.............................48
5.17 【Meas】Measurement.............................................49
5.18 【Meas Setup】..........................................................52
5.19 【System】..................................................................53
5.20 【File】.........................................................................58

ii
5.21 【Print】.......................................................................59
5.22 【Save】......................................................................60
6. Specification ................................................................. 62
7. Warranty........................................................................ 70
7.1 Troubleshooting..............................................................70
7.2 Spectrum Analyzer Repair............................................71
8. Appendix ....................................................................... 72
Appendix A: Enclosure.........................................................72
Appendix B: General Care and Cleaning..........................72
Appendix C: USB Disk Requirements...............................73
Appendix D: PC Software Requirements..........................73

iii
List of figures
Figure 4-1 Front panel.................................................................9
Figure 4-2 Function Keys..........................................................10
Figure 4-3 Numeric Keypad .....................................................13
Figure 4-4 The knob..................................................................14
Figure 4-5 Direction keys..........................................................14
Figure 4-6 Rear Panel...............................................................15
Figure 4-7 User interface..........................................................17
Figure 4-8 Full Span..................................................................20
Figure 4-9 Set frequency span.................................................21
Figure 4-10 Set reference level..................................................22
List of tables
Table 4-1 Working Power Variation Range.............................. 7
Table 4-2 Front Panel Description.............................................9
Table 4-3 Function Key Description........................................10
Table 4-4 Rear Panel Description............................................15
Table 4-5 User interface Description.......................................17
Table 5-1 Detector type comparison.......................................34
Table 5-2 [Factory] Settings......................................................55

1.General Safety Requirements
1
1. General Safety Requirements
Before use, please read the following safety precautions to
avoid any possible bodily injury and to prevent this product or
any other connected products from damage. To avoid any
contingent danger, ensure this product is only used within the
ranges specified.
Use Proper Power Cord. Use only the power cord supplied
with the product and certified to use in your country.
Product Grounded. This instrument is grounded through the
power cord grounding conductor. To avoid electric shock, the
grounding conductor must be grounded. The product must be
grounded properly before any connection with its input or
output terminals.
Check all Terminal Ratings. To avoid fire or shock hazard,
check all ratings and markings on this product. Refer to the
user manual for more information about ratings before
connecting to the instrument.
Use Proper Overvoltage Protection. Make sure that no
overvoltage (such as that caused by a thunderstorm) can
reach the product, or else the operator might expose to danger
of electrical shock.
Do not operate without covers. Do not operate the
instrument with covers or panels removed.
Avoid exposed circuit. Be careful when working on exposed
circuitry to avoid risk of electric shock or other injury.
Do not operate if any damage. If you suspect damage to
the instrument, have it inspected by qualified service
personnel before further use. Any maintenance, adjustment or
replacement especially to circuits or accessories must be
performed by qualified service personnel.
Use your Oscilloscope in a well-ventilated area. Make sure
the instrument installed with proper ventilation.
Do not operate in damp conditions. In order to avoid short

1.General Safety Requirements
2
circuiting to the interior of the device or electric shock, please
do not operate in a humid environment.
Do not operate in an explosive atmosphere. In order to
avoid damages to the device or personal injuries, it is
important to operate the device away from an explosive
atmosphere.
Keep product surfaces clean and dry. To avoid the influence
of dust or moisture in air, please keep the surface of device
clean and dry.
Electrostatic Prevention. Operate the instrument in an
electrostatic discharge protective environment to avoid
damage induced by static discharges. Always ground both the
internal and external conductors of cables to release static
before making connections.
Protect the Input Terminals of Instrument. Do not bend or
hit the input terminals and the connected devices, (such as
filter, attenuator, etc.) as such stress may cause damages to
devices and the instrument. Do not mix the use of 50Ω and
75Ω connectors and/or cables.
Do Not Overload the Input. To avoid damaging the
instrument, the signals at input terminal must be less than 50V
DC voltage components and 30 dBm (1 W) AC (RF)
components.
Appropriate Use of Power Meter. If you are not sure of the
characteristics of signal under measure, follow these
recommendations to ensure safe operations: if a RF power
meter is available, use it to measure the power level of this
signal first; or add a rated external attenuator between signal
cable and input terminal of the instrument. Maximum
attenuation, reference level and maximum span frequency
should be selected, so as to make the signals displayed within
the screen.
Know About the Specification Conditions of the
Instrument. For maximum performance of the instrument, use
the analyzer under specified conditions.

1.General Safety Requirements
3
Handling Safety. Please handle with care during
transportation to avoid damages to buttons, knob, interfaces
and other parts on the panels.

2.Safety Terms and Symbols
4
2. Safety Terms and Symbols
Safety Terms
Terms in this manual (The following terms may appear in this
manual):
!
WARNING
Warning indicates conditions or practices that could result
in injury or loss of life.
Terms on the product (The following terms may appear on this
product):
DANGER
Indicates an immediate hazard or injury possibility.
WARNING
Indicates a possible hazard or injury.
CAUTION
Indicates potential damage to the instrument or other
property.
Safety Symbols
Symbols on the product (The following symbols may appear on
the product):
~
!
Hazardous
Voltage
Chassis
Ground
Refer to
Manual
!
CAUTION
Caution indicates the conditions or practices that could
result in damage to this product or other property.

3.Document Overview
5
3. Document Overview
Quick Start
This chapter states the matters need to attention before first
power on, how to power on at first time, introduces spectrum
analyzer’s front/rear panel and user interface, explains how to
use the instrument with a measurement example
demonstration.
Menu interpretation
This chapter offers spectrum analyzer’s front panel menu and
button interpretation.
Specification Parameter
This chapter lists spectrum analyzer’s specification parameter.
Trouble Shooting
This chapter helps to implement the troubleshooting and deal
with after sale repair.
Appendix
This chapter introduces accessories of spectrum analyzer and
how to maintain device.
Convention on button and menu key format:
Button: Button character + bold bracket, e.g. 【FREQ】stands for
FREQ button.
Menu key words+bracket, e.g.[Center frequency] stands for
【FREQ】function’s center frequency item, that is common called
softkey menu item.
Related document:
Related documents including: Quick guide, User manual,
programme guide and etc.

4.Quick Start
6
4. Quick Start
This chapter states the matters need to attention before first power
on, and how to power on at first time, introduces spectrum
analyzer’s front/rear panel and user interface, explains how to use
the instrument with a measurement example demonstration.
4.1 General Inspection
When you receive your new instrument, it is recommended
that you check the instrument following these steps:
1.Check for transportation damage.
If it is found that the packaging carton or the foamed plastic
protection cushion has suffered serious damage, do not throw
it away until the complete device and its accessories have
been electrically and mechanically checked.
2.Check the Accessories
The supplied accessories are described in the "Appendix A:
Enclosure" of this Manual. Please ensure that all the listed
accessories are present and undamaged, if any problems are
found please contact your distributor or our local office.
3.Check the Complete Instrument
If there is any physical damage, operational fault, or
performance issue please contact your distributor or our local
office. If there is any damage to the instrument please ensure
you keep the original packaging. Ideally you should always
keep the original packaging if the instrument must be returned
for repair.
4.2 Safety Precaution before Operation
4.2.1 Check Power Supply
The analyzer is equipped with a three-wire power cord in
accordance with international safety standards. The product must
be grounded properly before being powered on, as floating or
improper ground may cause damage to the instrument or personal
injury.
Make sure the grounding conductor of the spectrum analyzer is
grounded before turning on the instrument. After which the AC

4.Quick Start
7
power cord can be connected. Do not use a non-ground power
cord.
4.2.2 Allowed Variation Range of Supply Power
Parameters
The spectrum analyzer is compatible with 100V-240V, 50Hz-60Hz
AC power, Table 4-1 lists the power requirement to run the
spectrum analyzer.
Table 4-1 Working Power Variation Range
Power Supply Parameter
Compatible Range
Voltage
100 - 240 VAC
Frequency
50 - 60 Hz
Power 
22 W
To prevent or lower the risk of damage to the spectrum analyzer
from power interference between instruments, especially from
peak pulses produced by large power consumption instruments, a
220V/110V AC regulated power supply is recommended.
4.2.3 Power Cord Selection
The analyzer is equipped with a three-wire power cord in
accordance with international safety standards. This cable grounds
the analyzer cabinet when connected to an appropriate power line
outlet. The cable must be rated greater than 250Vac and 2A.
!
WARNING
Improper grounding may cause damage to the instrument,
or result in personal injury. Make sure the grounding
conductor of the spectrum analyzer is grounded before
turning on the instrument.
Always use a well-grounded power source. Do not use an
external power cable, power cord or an auto transformer
without grounded protection. If this product is to be powered
via an external auto transformer for voltage reduction,
ensure that its common terminal is connected to a neutral
(earthed pole) of the power supply.

4.Quick Start
8
!
WARNING
Make sure the supply power is stable before turning on the
analyzer to protect it from damage. Refer to “First Time to
Power on" section 3.
4.2.4 Electro-static Discharge (ESD) Protection
ESD is an issue often ignored by users. Damage from ESD on the
instrument is unlikely to occur immediately but will significantly
reduce the reliability of it. Therefore, ESD precautions should be
implemented in the work environment, and applied daily.
Generally, there are two steps to manage ESD protection:
1) Conductive table mats to connect hands via wrist bands
2) Conductive ground mat to connect feet via ankle straps
Implement both protection methods will provide a good level of
anti-static protection. If used alone, the protection will not be as
reliable. To ensure user’s safety, anti-static components should
offer at least 1MΩ isolation resistance.
Make good use of anti-static technology to protect components
from damage:
1) Quickly ground the internal and external conductor of the coaxial
cable before it is connected with the spectrum analyzer.
2) Staff must wear anti-static gloves before touching the connector
cord or doing any assemble work.
3) Assure all the instruments are grounded properly to avoid static
storage.
4.3 First Time to Power on
Connect the three-pin AC power cord into the instrument. Insert the
plug into a power socket provided with a protective ground.
!
WARNING
The above ESD protections measures cannot be used
when working with over 500V!

4.Quick Start
9
!
WARNING
Check the power source before turning on the spectrum
analyzer, to protect the device from damage.
1) Press the power switch on the bottom left of the front
panel.
2) Self-initialization takes about 30 seconds, after the boot screen
the spectrum analyzer will default to the scanning curve.
3) After power on, let the spectrum analyzer warm up for 30
minutes for stabilization to obtain the most accurate results.
4.4 Front Panel
9 61112
13
4
5
10
1 2 3
78
Figure 4-1 Front panel
Table 4-2 Front Panel Description
NO.
Description
NO.
Description
①
LCD
⑧
Numeric keypad
②
Menu softkeys
⑨
TG or CW source
output connector

4.Quick Start
10
4.4.1 Front Panel Function Key
Basic keys
Marker measure Advanced
measure
Utility keysControl keys
Figure 4-2 Function Keys
Table 4-3 Function Key Description
Keys
Description
Basic keys

Activates the center-frequency function, and
accesses the frequency function menu.
③
Function keys
⑩
Source output
On/Off button
④
Knob
⑪
Earphone interface
⑤
Arrow keys
⑫
USB Host port
⑥
RF Input connector
⑬
Power key
(Push to turn on,
long push to turn off)
⑦
Unit keys
FREQ

4.Quick Start
11

Activates the frequency sweep span
function, and set Full Span\Zero Span\Last
Span.

Activates the reference level function, and
accesses the amplitude softkeys, with
which you set functions that affect data on
the vertical axis.

Searches the signal automatically within the
full frequency range.
Control keys

Activates the RBW (resolution bandwidth)
function, and accesses the softkeys that
control the bandwidth functions and
averaging.

Accesses the softkeys that allow you to
store and manipulate trace information.

Accesses the softkeys that allow you to
configure detector functions.

Accesses the softkeys that allow you to
control what is displayed on the analyzer,
including the display line, graticule and
label.

Accesses the softkeys that allow you to set
the sweep time, select the sweep mode of
the analyzer.

Accesses the softkeys that allow you to
select the trigger mode of the analyzer.

Accesses the softkeys that allow you to set
the CW or TG source.

Accesses the softkeys that allow you to set
the demodulation.
Marker measure keys
SPAN
AMPTD
BW
AUTO
Sweep
Trig
Trace
Display
Detector
Source
Demod

4.Quick Start
12

Places a marker on the highest peak, and
accesses the Peak functions menu.

Accesses the marker control keys that
select the type and number of markers and
turns them on and off.

Accesses the marker function softkeys that
allow you to set other system parameters
based on the current marker value.

Accesses the menu of special functions,
such as marker noise, N dB bandwidth
measure and frequency counting.
Advanced measure keys

Accesses the softkeys that let you make
transmitter power measurements such as
ACPR(adjacent channel power), channel
power, and OBW(occupied bandwidth), etc.

Sets the parameters for the selected
measurement function.
Utility keys

Sets the system parameters, and accesses
the calibration menu. 

Accesses the softkeys that allow you to
configure the file system of the analyzer.

Resets the analyzer to the factory settings
or user state. This state can be specified in
【System】→[PowerOn/Preset►]→
[Preset►].

Accesses the softkeys that allow you to set
the print parameters.

Accesses the softkeys that allow you to
save screen pixmap, trace data, or user
state.

Press the Help key to activate the help
system. Press the Help key again to exit.
Marker
System
Save
File
Help
Meas
Meas
Setup
p
Peak
Preset
Print
Marker
Fctn
p
Marker

4.Quick Start
13
4.4.2 Parameter Input
Specific parameter values are able to be entered using the numeric
keypad, knob, and directional keys.
Numeric Keypad
Figure 4-3 Numeric Keypad
1. Numeric keys
Numbers 0-9 are available to be used.
2. Decimal point
A decimal point "." will be inserted at the cursor position
when this key is pressed.
3. Sign key
Sign key "+/-" is to toggle the sign of a parameter. When
pressed the first time, a "-" will be inserted and changed into
"+" following the second press.
4. Unit keys
Unit keys include GHz/dBm/s, MHz/dB/ms, kHz/dBmV/μs
and Hz/mV/ns. After entering the desired numbers, choose
an appropriate unit to complete the input. The specific
meaning of unit is decided by the type of input parameter
("frequency", "amplitude" or "time").
5. Cancel Key
(1) During the editing process this key will clear the inputs in
the active area and exit editing mode at the same time.
(2) Turn off the display in the active area.
(3) Exit current test mode while in keyboard test.
6. Back Key
(1) During the process of parameter editing, this key will
delete the characters on the left side of the cursor.
(2) While in the process of file name editing, pressing this
key will delete characters that have been entered.

4.Quick Start
14
7. Enter
When pressed, the system will complete the input process
and insert a default measurement unit for the parameter
automatically.
Knob
Figure 4-4 The knob
The knob function:
During parameter editing, turn the knob clockwise to increase, or
counterclockwise to decrease the parameter values at specified
steps.
Direction key
Figure 4-5 Direction keys
The directional keys have following functions:
1) Increase or decrease the parameter value at specific steps
while editing a parameter.
2) Move the cursor though the directory tree in the【File】function.
4.4.3 Front Panel Connector
1. USB Host
The analyzer may serve as a "host" device to connect to external
USB devices. This interface is available for USB storage devices.
2. GEN Output 50Ω(tracking generator output 50Ω)