Micronix MSA338, MSA338E, MSA338TG, MSA358 Operating Manual

Ver.1.9/Apr./2014

MICRONIX CORPORATION

3.3GHｚ/8.5GHｚ Spectrum Analyzer

MSA338(E/TG)/MSA358

Operating manual

OM-040058E

–I–

Before Starting to Use the Unit

· When you use the unit, please observe the following notes listed on the rear of the body.

· For you to use it safely

1) When abnormal sounds, abnormal smell and smoke were confirmed, remove the battery and AC adapter

and stop the use.

2) Never use with hands that got wet, because doing so may cause damage, fire and electric shock to the

unit.

3) Never use it under the thunder. There is a possibility of receiving a thunderbolt.

4) Never use an AC adapter other than the one specified, because doing so may cause damage to the unit.

For static electricity protection, ground the unit by connecting the three cores if possible. Not grounding

the unit can damage it and the object measured.

5) Never use a battery other than the one specified, because doing so may cause damage to the unit.

When removing or installing the battery, be sure to do it after you turn off the unit and disconnect the

AC adapter.

6) When replacing the fuse, disconnect the AC adapter, open the battery cover on the back and remove

battery, and then take sufficient care to perform the replacement. Use 5A/250V fuse (IEC127-2 sheet 3,

slow-blow type).

Never use a fuse not specified because doing so may cause damage to the unit.

–II–

· Guarantee of quality

Guarantee period

Guarantees that it will repair any failure free of charge if it occurs because of our responsibility within

one year after delivery. However, the above guarantee does not apply to such a failure that:

1) is caused by a fire, natural disasters, etc.

2) is caused by inappropriate handling of the unit, such as dropping it while moving it after

purchasing.

3) is caused by handling counter to the instructions or precautions listed in the operating manual.

4) is caused by modifying the unit or by being considered to be your responsibility because of

inappropriate use.

We will not be responsible for direct or indirect damage caused by use of this product or by a failure of

this product.

Warm-up time

In order to stabilize the electric performance at the time of turning on the unit, please perform

warming-up for at least 10 minutes.

The LCD may flicker on conditions of the low temperature and the dark backlight.

In that case, adjust the LCD backlight control BLCTR to be bright.

However, do not be bright too much in order to keep battery operation time longer.

Precautions for storage

1) Strictly observe the storage conditions specified for this unit, such as avoiding direct sunlight and dust.

2) Store this unit in a place where -20°C to 60°C, less than 60°C/70%RH, variations in temperature and

humidity are small.

After service

If you have any question about the contents of this product or how to operate it, please contact us at:

MICRONIX CORPORATION

2987-2, KOBIKI-CHO, HACHIOJI-SHI, TOKYO 193-0934 JAPAN

TEL. +81-426-37-3667 FAX. +81-426-37-0227

URL: http://www.micronix-jp.com/ E-mail: micronix_e@micronix-jp.com

1. Outlines

--------------------------------------------------------------------------------------------------------- 1

1.1 Product outlines --------------------------------------------------------------------------------------- 1

1.2 Standard accessories ---------------------------------------------------------------------------------- 2

1.3 Optical accessories ------------------------------------------------------------------------------------ 2

2. Specifications

------------------------------------------------------------------------------------------------- 3

2.1 Performances ------------------------------------------------------------------------------------------ 3

2.2 Outline -------------------------------------------------------------------------------------------------- 6

3. Description of Panel

--------------------------------------------------------------------------------------- 7

4. Description of Screen

------------------------------------------------------------------------------------10

5. Function Key Menu

--------------------------------------------------------------------------------------11

5.1 List of the function key menus ---------------------------------------------------------------------11

5.2 Menu tree ---------------------------------------------------------------------------------------------12

6. Preparing for Operation

-------------------------------------------------------------------------------17

6.1 Stand ---------------------------------------------------------------------------------------------------17

6.2 Connection to power supply ------------------------------------------------------------------------17

6.3 Replacing the fuse -----------------------------------------------------------------------------------18

6.4 Installing the battery ---------------------------------------------------------------------------------18

6.5 Soft carrying case ------------------------------------------------------------------------------------18

7. Center Frequency <FREQ>

--------------------------------------------------------------------------19

7.1 Setting with the step keys ---------------------------------------------------------------------------19

7.2 Setting with the encoder ----------------------------------------------------------------------------19

7.3 Setting with the numeric keys ----------------------------------------------------------------------19

7.4 According to the marker position ------------------------------------------------------------------20

8. Frequency Span <SPAN>

-----------------------------------------------------------------------------20

9. Reference Level <REFER>

---------------------------------------------------------------------------21

9.1 Setting the reference level --------------------------------------------------------------------------22

9.2 Switching units of amplitude axis -----------------------------------------------------------------22

9.3 Reference level setting range for each unit -------------------------------------------------------22

9.4 Relation between the reference level and ATT·AMP -------------------------------------------23

9.5 Setting the offset level -------------------------------------------------------------------------------23

9.6 Setting the input impedance correction -----------------------------------------------------------23

Contents

10. Display Scale <SCALE>

-----------------------------------------------------------------------------24

10.1 Setting with the keys -------------------------------------------------------------------------------24

10.2 Setting with the encoder ---------------------------------------------------------------------------24

11. Resolution Bandwidth <RBW>

-------------------------------------------------------------------25

11.1 MANUAL mode -----------------------------------------------------------------------------------25

11.2 AUTO mode ----------------------------------------------------------------------------------------25

11.3 ALL AUTO mode ----------------------------------------------------------------------------------25

12. Video Bandwidth <VBW>

---------------------------------------------------------------------------26

12.1 MANUAL mode -----------------------------------------------------------------------------------26

12.2 AUTO mode ----------------------------------------------------------------------------------------26

12.3 ALL AUTO mode ----------------------------------------------------------------------------------26

13. Sweep Axis · Detection mode <SWEEP>

------------------------------------------------------26

13.1 MANUAL mode -----------------------------------------------------------------------------------27

13.2 AUTO mode ----------------------------------------------------------------------------------------27

13.3 ALL AUTO mode ----------------------------------------------------------------------------------27

13.4 Setting the detection mode ------------------------------------------------------------------------27

14. AUTO Tuning <AUTO TUNE>

-------------------------------------------------------------------27

15. Hold/Run <HOLD/RUN>

----------------------------------------------------------------------------27

16. Calculation Function <CALC>

--------------------------------------------------------------------28

16.1 NORM mode ---------------------------------------------------------------------------------------28

16.2 MAX HOLD mode --------------------------------------------------------------------------------28

16.3 MIN HOLD mode ---------------------------------------------------------------------------------28

16.4 AVERAGE mode -----------------------------------------------------------------------------------29

16.5 OVER WRITE mode ------------------------------------------------------------------------------29

16.6 SPURIOUS FREE mode --------------------------------------------------------------------------29

17. Marker · Peak Search <MKR>

--------------------------------------------------------------------30

17.1 Moving the marker ---------------------------------------------------------------------------------31

17.2 Setting the peak search <PEAK SEARCH> ---------------------------------------------------31

17.3 Changing the unit of marker point ---------------------------------------------------------------31

18. Save/Load <SAVE/LOAD>

--------------------------------------------------------------------------32

18.1 Save/Load (MSA338(E/TG)) ---------------------------------------------------------------------32

18.2 Save/Load (MSA358) -----------------------------------------------------------------------------34

19. Measuring Function <MEAS>

---------------------------------------------------------------------36

19.1 Channel power measurement <Ch Power> -----------------------------------------------------37

19.2 Adjacent channel leakage power measurement <Adj Ch Pw> -------------------------------38

19.3 Occupied frequency bandwidth measurement <Occ Bw> -----------------------------------39

19.4 Electric field strength measurement <E/F ANT> ----------------------------------------------40

19.5 Magnetic field strength measurement <M/F PROBE> ---------------------------------------45

19.6 Frequency counter <Freq COUNT> (factory option) -----------------------------------------47

20.EMI test

20.1 Additional function for EMI test----------------------------------------------------------------------48

20.2 EMI test ----------------------------------------------------------------------------------------------49

21. Screen Control <DSPL>

------------------------------------------------------------------------------52

21.1 Adjusting the contrast ------------------------------------------------------------------------------52

21.2 Switching ON and OFF the LCD backlight ----------------------------------------------------52

21.3 Adjusting the brightness of the LCD backlight -------------------------------------------------52

21.4 Inverting the display -------------------------------------------------------------------------------52

21.5 Enable or disabling the beep ----------------------------------------------------------------------52

22. Tracking Generator Mode

---------------------------------------------------------------------------- 53

22.1 Specification only for T.G. function --------------------------------------------------------------53

22.2 Description of I/O connector ----------------------------------------------------------------------53

22.3 Switching ON and OFF the T.G. function -----------------------------------------------------54

22.4 Normalizing of wave form ----------------------------------------------------------------------54

23. Printing <PRINT> (optional)

-----------------------------------------------------------------------55

23.1 Hard copy of the screen ----------------------------------------------------------------------------55

24. Data Output <RS232C>

-------------------------------------------------------------------------------56

24.1 Selecting the trace to transfer ---------------------------------------------------------------------56

24.2 Selecting the communication speed (baud rate) ------------------------------------------------56

24.3 Transfer the data ------------------------------------------------------------------------------------56

25. RS-232C Interface

---------------------------------------------------------------------------------------58

25.1 RS-232C specifications ----------------------------------------------------------------------------58

25.2 How to connect -------------------------------------------------------------------------------------58

25.3 Command description -----------------------------------------------------------------------------59

25.4 Input the frequency ---------------------------------------------------------------------------------64

25.5 Writing of original compensation data -----------------------------------------------------------64

25.6 Sample Programs -----------------------------------------------------------------------------------66

26. PC Software (optional)

---------------------------------------------------------------------------------67

27. Basis Performance Test

------------------------------------------------------------------------------67

27.1 Frequency characteristics --------------------------------------------------------------------------68

27.2 Accuracy of reference level -----------------------------------------------------------------------69

27.3 The display accuracy of the center frequency --------------------------------------------------69

27.4 The display accuracy of the frequency span ----------------------------------------------------70

27.5 Linearity of the amplitude axis -------------------------------------------------------------------70

–1–

1. Outlines

1.1 Product outlines MSA338（E/TG）/MSA358

MSA338(E/TG)/MSA358 is an authentic spectrum analyzer providing performance and functions that are comparable to those of large-size bench type equipment, in a compact, lightweight and inexpensive model.

1) Compact and lightweight, 1.8 kg(MSA338(E/TG)/MSA358)

The external dimensions are as small as 162 (W) × 70 (H) × 260 (D) (mm), and the weight is only 1.8 kg including the battery. It is very convenient for outdoors use and while on business trips.

2)Measuring frequency bandwidth 50kHz to 3.3GHz(MSA338)/50kHz to 8.5GHz(MSA358)

This bandwidth covers those of W-CDMA, CDMA, PDC, PHS, GSM, wireless LAN, Bluetooth, etc.

3) Operation with battery for 150 minutes

When battery MB300 (optional) is fully charged, MSA338(E/TG)/MSA358 works for about 150 minutes (with the back light turned off). It is extremely convenient for outdoor use and for use in the survey of wireless LAN installation environment.

4) Performance that is comparable to that of large-size bench type equipment

MSA338(E/TG)/MSA358 guarantees a highly stable frequency axis by PLL synthesizer system. The center frequency setup resolution is 100kHz. Furthermore, the mean noise level is -110dBm or less. Thus, a broad dynamic range is secured and the reference level can be set in 1 dB steps.

5) Abundant functions

·

Measuring functions··· Channel power measurement, Adjacent channel leakage power measurement,

Occupied frequency bandwidth measurement, Electric field strength measurement, Magnetic field strength measurement (optional), Frequency counter (factory option)．

·

Electric field strength measurement: Optimum for measurement of cellular phone and

wireless LAN working environment.

·

Magnetic field strength measurement: Optimum for EMI design of printed circuit boards

and for evaluation of signal quality.

·

Calculation functions··· MAX HOLD, MIN HOLD, AVERAGE, OVER WRITE

·

Marker & peak search

·

Save/load

6) Auto tuning

The center frequency is set at the spectrum of the maximum level in the 3.3GHz(MSA338(E/TG)) /8.5GHz(MSA358) band, and in addition, optimum reference level, resolution bandwidth, video bandwidth and sweep time are set when the AUTO TUNE key is pressed. This function is very convenient for measurement of an unknown signal.

7) Auto range motion

The resolution bandwidth, video bandwidth and sweep time are set automatically based on the set frequency span. It is also possible to set auto range motion only one out of resolution bandwidth, video bandwidth and sweep time.

8) Hard copy of the image

Connect a printer (optional) and press the [PRINT] key on MSA338(E/TG)/MSA358. The image on the screen is printed as it is.

–2–

9) High resolution display on the PC screen

The trace is displayed at high resolution, 1001 points in the horizontal axis, on the PC screen when “PC Software MAS300” (optional) is used.

1.2 Standard accessories

1. AC adaptor MA300

2. Soft carrying case

3. Accessory pouch

4. Fuse (It has been installed in the inside)

5. Operating manual

1.3 Optional accessories

1. Antenna M301, M302, M303, M304, M305, M306, M307 (Refer to “19.4 Electric field strength measurement” for details.)

2. Magnetic field probe CP-2S with a dedicated double shielded coaxial cable

(Refer to “19.5 Magnetic field strength measurement” for details.)

3. Ni-MH battery MB300 (Refer to “6.4 Installing the battery” for details.)

4. PC software MAS300 (Refer to “26. PC Software” for details.)

5. Operating software for EMI test MAS230 (Refer to the operating manual of MAS230)

6. RS-232C cable MI180 (Refer to “25. RS-232C Interface” for details.)

7. Frequency counter (factory option) (Refer to “19.6 Frequency counter” for details.)

8. RS-232C/GP-IB converter ZS-61447

9. Battery charger MBC300

10. Printer with AC adaptor. 4pcs of AA batteries, a roll paper (Refer to “23. Printing” for details.)

11. Roll paper for optional printer (with 10 rolls)

12. SMA coaxial cables

Model Connector Cable length Frequency range

MC301 SMA(P)/SMA(P) 0.5m DC to 10GHz MC302 SMA(P)/SMA(P) 1.0m DC to 10GHz MC303 SMA(P)/SMA(P) 1.5m DC to 10GHz MC304 SMA(P)/N(J) 0.2m DC to 4GHz MC305 SMA(P)/N(P) 0.2m DC to 4GHz MC306 SMA(P)/BNC(J) 0.2m DC to 2GHz MC307 SMA(P)/BNC(P) 0.2m DC to 2GHz

* All impedance is 50Ω. * Performances change by bending and deteriorate by repeating the insertion and extraction

13. Coaxial adapters

Model Connector Impedance Frequency range

MA301 BNC(P)/BNC(J) 50Ω/75Ω DC to 2GHz MA302 BNC(P)/N(J) 75Ω/75Ω DC to 1.8GHz MA303 BNC(P)/N(P) 75Ω/75Ω DC to 1.8GHz MA304 BNC(P)/F(J) 75Ω/75Ω DC to 1.8GHz MA305 BNC(P)/F(P) 75Ω/75Ω DC to 1.8GHz

–3–

2.Specifications

2.1 Performances

·Frequency section

MSA338(E/TG) MSA358

Frequency range 50kHz to 3.3GHz 50kHz to 8.5GHz

Frequency

range

Frequency

band

Harmonic

order

50k～3.5GHz

Base band 1

3.3G～6.3GHz

Band 1- 1

―――

6.1G～8.5GHz

Band 1+ 1

Center frequency

Setting

resolution

100kHz

Allows Rotary encoder, numeric key and function key

Accuracy

within ±(30+20T)kHz±1dot

@frequency span: 200kHz to 10MHz,

RBW: 3kHz, 23±5°C

within ±(60+300T)kHz±1dot

@frequency span: 20MHz to 3.3GHz,

RBW: 100kHz, 23±5°C

T: Sweep time(s)

within ±(30+20T)kHz±1dot

@frequency span: 200kHz to 10MHz,

RBW: 3kHz, 23±5°C

within ±(60+300T)kHz±1dot

@frequency span: 20MHz to 8.5GHz,

RBW: 100kHz, 23±5°C

T: Sweep time(s)

RBW

frequency

error

within ±4kHz @ RBW: 3kHz,10kHz, 30kHz

within ±20% of RBW @ RBW: 100kHz, 300kHz

within ±10% of RBW @ RBW: １MHz, 3MHz

Frequency span

Setting range 0Hz(zero span),

200kHz to 2GHz(1-2-5step) and

3.3GHz(full span)

0Hz(zero span), 200kHz to 5GHz

(1-2-5step) and 8.5GHz(full span)

Accuracy within ±3%±1dot

@ one step slower sweep time than AUTO, 23±5°C

Display resolution Frequency span/250

Frequency span/1000 (only the measurement by RS-232C

Display dot number 251dots, 1001dots (only the measurement by RS-232C communication)

(The unit displays data in 251 horizontal dots, but it internally captures the trace in

1001 dots)

Resolution bandwidth 3dB bandwidth (6dB for MSA338E @9kHz, 120kHz)

–4–

Setting range 3kHz to 3MHz(1-3step) and AUTO

(MSA338E: 3kHz, 9kHz, 30kHz, 120kHz, 300kHz, 1MHz, 3MHz)

Accuracy within ±20%

Selectivity 1:12 (typical)@ 3dB : 60dB

Video bandwidth 100Hz to 1MHz (1-3step), AUTO

SSB phase noise -90dBc/Hz (typical) @100kHz offset, RBW: 3kHz, VBW: 100Hz, Sweep time: 1ｓ

Spurious response less than -60dBc

Harmonics less than -40dBc@100MHz to 3.3GHz less than -40dBc@100MHz to 8.5GHz

· Amplitude section

MSA338(E/TG) MSA358

Reference level

Setting range +10 to -60dBm (1dB step)

Accuracy

within ±0.8dB±1dot

@center frequency: 100MHz, RBW: 3MHz, VBW: 1MHz, ATT: 0dB, 23±5°C

Unit

dBm, dBV, dBmV, dBμV, dBμV/m, dBμA/m

(dBμV/m and dBμA/m is used in the measuring function)

Average noise level -117dBm (typical)

@center freq: 1GHz, RBW: 3kHz, VBW: 100Hz

Frequency

Characteristic

Within ±2.0dB±1dot@50kHz to100MHz

Within ±1.0dB±1dot@100MHz to 3.3GHz

Within ±2.0dB±1dot@50kHz to 100MHz

Within ±1.0dB±1dot@100MＨz to 8.5GHz

Input impedance 50Ω

Input VSWR less than 2.0

Input attenuator

Operating range 0 to 25dB (1dB step), coupled with reference level

Switching error within ±0.6dB@100MHz

RBW switching error within ±0.6dB

Display dot number 201dots

Scale 10dB/div, 2dB/div Display

scale

Accuracy within ±0.8dB/10dB±1dot

within ±0.2dB/2dB±1dot

within ±1.6dB/70dB±1dot

Input damage level +27dBm(CW average power), 25VDC

· Sweep section

MSA338(E/TG) MSA358

Sweep time

Setting range 10ms to 30s and AUTO(1-3step)

@frequency span: 0 to 2GHz

10ms to 30s and AUTO (1-3step)

@frequency span: 0 to 2GHz

–5–

30ms to 30s and AUTO (1-3step)

@frequency span: full span

30ms to 30s and AUTO (1-3step)

@frequency span: 5GHz, full span

Accuracy

within ±0.1%±1dot@ frequency span: 0

to 2GHz

within ±1.5%±1dot@ frequency span:

full span

within ±0.1%±1dot@frequency span: 0

to 5GHz

within ±2.5%±1dot@frequency span:

full span

Trigger mode AUTO(frequency span: zero span)

Detection mode Positive peak, Negative peak, Sample

MSA338E only: Quasi peak, Average

· Functions

MSA338(E/TG) MSA358

Marker

NORM: displays frequency (7digits max) and level (4digits max) at marker point.

DELTA: displays differential frequency and level between 2 markers.

Peak search

NORM: searches a peak point within 10div. Available NEXT peak (10max).

ZONE: searches a peak point within a zone designated by center and width.

Marker moves to a peak point each sweep.

Calculation NORM, MAX HOLD, MIN HOLD, AVERAGE, OVER WRITE

MAX/MIN HOLD: 2 to 1024 times, AVERAGE: 2 to 256

Measuring

Channel power, Adjacent channel leakage power, Occupied frequency bandwidth,

Electric field strength (needs antenna), Magnetic field strength (needs optional

magnetic field probe) measurement, Frequency counter.

AUTO tuning

When pushing AUTO TUNE key, the

maximum level spectrum within 3.3GHz

bandwidth is adjusted to center, and

reference level, RBW, VBW and sweep

time are adjusted to optimum values.

When pushing AUTO TUNE key, the

maximum level spectrum within 8.5GHz

bandwidth is adjusted to center, and

reference level, RBW, VBW and sweep

time are adjusted to optimum values.

Save Saves 100 traces and 100 setups Save/

Load

Load Loads 1 trace and 1 setup

· General

MSA338(E/TG)/358 common

Immunity of radiated

interference

Level display at 10V/m

Less than -35dBc (reference level: 10dBm)

Immunity to cabled

interference

Level display at

transient interference

of 4.0kV

Less than -30dBc (reference level: 10dBm)

Input connector SMA(J)

–6–

Communication

Interface RS-232C

Baud rate 2,400 to 38,400bps

Hard copy Allows direct hard copy with an optional printer.

Display LCD

Backlight CFL backlight

Display

Resolution 320 (H) × 240 (V) dots

Power source

Battery Ni-MH battery (optional)

External DC source DC jack, +4.75 to +5.25VDC/4A

· Other

MSA338(E/TG)/358 common

Operating temperature 0 to 50°C (Guaranteed at 23±10°C, without soft carrying case)

Operating humidity

less than 40°C/80%RH

(Guaranteed at less than 33°C /70%RH, without soft carrying case)

Storage temperature -20 to 60°C, less than 60°C/70%RH

Dimensions 162 (W) × 70 (H) × 260 (D) mm (exclude projections and stand)

Weight approx. 1.8kg (include battery), approx. 1.5kg (without battery)

*Refer to ”22.Tracking Generator Mode” for T.G. Specification

2.3 Outline

[Unit: mm]

* MICRONIX Corporation reserves the right to make changes in design, specification and other information without prior notice

.

–7–

3. Description of Panel

–8–

1) LCD screen

This is a large liquid crystal display with 240 (V) × 320 (H) dots. It simultaneously displays traces (8 div

× 10 div), various setting values, measured values, etc.

2) Input connector

SMA (J) connector.

3) Input connector for DC power source

Connects AC adaptor MA300.

4) RS-232C connector

Connects PC and printer, by using RS-232C cable MI180.

5) Function keys (F1 to F6)

Functions change according to operation. Have functions corresponding to the on-screen displays.

6) Center frequency key

MSA338(E/TG):

Use this key to set the center frequency. It can set between 0 to 3.3GHz (100kHz step).

MSA358: Use this key to set the center frequency. It can set between 0 to 8.5GHz (100kHz step).

7) Frequency span key

MSA338(E/TG): Use this key to set the frequency span. It can set between 200kHz to 2GHz,

ZERO SPAN and FULL SPAN (3.3GHz).

MSA358: Use this key to set the frequency span. It can set between 200kHz to 5GHz, ZERO SPAN

and FULL SPAN (8.5GHz).

8) Reference level key

Set the reference level, etc. Reference level can set between +10dBm and -60dBm (1dB step).

9) Resolution bandwidth key

Use this key to set the resolution bandwidth. It can set between 3kHz and 3MHz.

10) Video bandwidth key

Use this key to set the video bandwidth. It can set between 100Hz and 1MHz.

11) AUTO tuning key

Tune up to the maximum level in 3.3GHz(MSA338(E/TG))/8.5GHz(MSA358) zones, and display by

the optimal setup. This does not operate normally when the signal level is lower than -40dBm , or when

the input frequency is below 50MHz, or when the frequency span is ZERO SPAN or FULL SPAN.

–9–

12) Measuring function key

Available for Channel power, Adjacent channel leakage power, Occupied frequency bandwidth, Electric

field strength and Magnetic field strength measurement (optional), Frequency counter (factory option)

13) Calculation function key

Available for Max hold, Min hold, Average and Over write.

14) Display scale key

Use this key to select the display scale of amplitude axis from 2dB/div or 10dB/div.

15) Sweep key

Use this key to set the sweep time between 10ms to 30s or set the detection mode.

16) Hold/Run key

Stops or restarts the measurement.

17) Marker & Peak search key

Use this key to set and move a marker.

18) Save/Load key

Saves 100traces and 100setups, and loads 1trace and 1setup.

19) Print key

When pressing this key, the image is printed with a printer (optional) as it is.

20) RS-232C key

Sets baud rate and transfers a current or saved trace.

21) Display control key

Sets contrast, backlight ON/OFF, brightness of backlight, invert display and buzzer ON/OFF.

22) Rotary encoder

Use this to make various settings

.

23) Power switch

Use this to turn the power ON or OFF.

–10–

4. Description of Screen

Trace display

10div × 8div

Display for function keys

Frequency axis setting values display

Center frequency, Frequency span,

Resolution bandwidth, Video bandwidth

Amplitude axis setting values display

Reference level, Input attenuator,

Display scale

Sweep axis setting

values display

Sweep time,

Detection mode

Calculation function display

Measuring function display

Operating information display

Loaded trace information display

* This is also used as a setting values display

when the measuring function is used.

Measured values display

–11–

5. Function Key Menu

5.1 List of the Function key menus

The types of function keys are shown in the table below. For description of each function, see the detailed pages. For the flow of change in the function key display, refer to “5.2 Menu tree”.

Function key menus Key flow

Detailed

page

Function key menus Key flow

Detailed

Page

ＡｄｊＣｈＯＦＳ

ＭＥＡＳ→（Ｆ２）→Ｆ２３８

ＡｄｊＣｈＰｗ

ＭＥＡＳ→Ｆ２３８

M)

ＭＯＤＥＭＥＡＳ→（Ｆ１～３）→Ｆ１３７，３８

３９

ＡｄｊＣｈＷＩＤＴＨＭＥＡＳ→（Ｆ２）→Ｆ３３８

ＮＯＲＭＣＡＬＣ→Ｆ１２８

ＡＮＴＭＥＡＳ→（Ｆ４）→Ｆ１４１

ＮＯＲＭ ※1 ＳＡＶＥ／ＬＯＡＤ→Ｆ６→Ｆ１４８

Ａ）

ＡＶＥＲＣＡＬＣ→Ｆ４２８

Ｎ）

ＮＵＭＦＲＥＱ→Ｆ５１９

Ｂ）Ｂ．Ｌ．ＤＳＰＬ→Ｆ２５２

ＯｃｃＢＷＭＥＡＳ→Ｆ３３９

ＢＡＣＫＳＰＡＣＥＦＲＥＱ→Ｆ５→Ｆ６２０

O)

ＯＦＳｄＢＲＥＦＥＲ→Ｆ５２３

ＢＡＮＤＣＮＴＲＭＥＡＳ→（Ｆ１）→（Ｆ１）→Ｆ２３７ＯＶＲＷＲＣＡＬＣ→Ｆ５２９

ＢＡＮＤＷＩＤＴＨＭＥＡＳ→（Ｆ１）→（Ｆ１）→Ｆ３３７

ＰＥＡＫＳＥＡＲＣＨＣＮＴＲＭＫＲ→（Ｆ３）→Ｆ４３１

ＢＡＵＤＲＳ２３２Ｃ→Ｆ２５４

Ｐ）

ＰＥＡＫＳＥＡＲＣＨＮＥＸＴＭＫＲ→（Ｆ３）→Ｆ５３１

ＢＬＣＴＲＤＳＰＬ→Ｆ３５２ＰＥＡＫＳＥＡＲＣＨＮＯＲＭＭＫＲ→（Ｆ３）→Ｆ３３１

ＢＵＺＺＲＤＳＰＬ→Ｆ５５２ＰＥＡＫＳＥＡＲＣＨＰＥＡＫＭＫＲ→（Ｆ３）→Ｆ４３１

Ｃ）ＣＥＮＴＥＲＦＲＥＱ → ＦＲＥＱ→Ｆ１１９ＰＥＡＫＳＥＡＲＣＨＷＩＤＴＨＭＫＲ→（Ｆ３）→Ｆ５３１

ＣＥＮＴＥＲＦＲＥＱ ← ＦＲＥＱ→Ｆ２１９ＰＥＡＫＳＥＡＲＣＨＺＯＮＥＭＫＲ→（Ｆ３）→Ｆ３３１

ＣｈＰｏｗｅｒＭＥＡＳ→Ｆ１３７ＰＲＥＳＥＴＳＡＶＥ／ＬＯＡＤ→Ｆ６３３

ＣＬＥＡＲＦＲＥＱ→Ｆ５→Ｆ５１９ＰＲＯＢＥＭＥＡＳ→（Ｆ５）→Ｆ１４５

ＣＬＥＡＲＳＡＶＥ／ＬＯＡＤ→Ｆ３３３

ＲＡＴＩＯＭＥＡＳ→（Ｆ３）→Ｆ２３９

ＣＯＮＶＭＫＲ→Ｆ６３１

Ｒ）

ＲＢＷＡＬＬＲＢＷ→Ｆ３２５

ＣＴＲＳＤＳＰＬ→Ｆ１５２ＲＢＷＡＵＴＯＲＢＷ→Ｆ２２５

Ｄ）ＤＥＴＳＷＥＥＰ→Ｆ４２７ＲＢＷＭＡＮＵＲＢＷ→Ｆ１２５

ＤＩＳＰＣＬＥＡＲＳＡＶＥ／ＬＯＡＤ→Ｆ４３３

ＲＥＦＥＲＥＮＣＥＣＮＴＲＭＥＡＳ→（Ｆ２）→Ｆ４３８

E) Ｅ／ＦＡＮＴＭＥＡＳ→Ｆ４４０

ＲＥＦＥＲＥＮＣＥＷＩＤＴＨＭＥＡＳ→（Ｆ２）→Ｆ５３８

ＥｎｃＳＴＦＲＥＱ→Ｆ４１９

ＳＡＶＥ

ＳＡＶＥ／ＬＯＡＤ→Ｆ１３２

ＥＸＥＣＲＳ２３２Ｃ→Ｆ３５６

Ｓ）

ＳＣＡＬＥ１０ｄＢ

ＳＣＡＬＥ→Ｆ１２４

EMI-C ※1 SAVE/LOAD→Ｆ６→Ｆ２４９

ＳＣＡＬＥ２ｄＢ

ＳＣＡＬＥ→Ｆ２２４

EMI-R ※1 SAVE/LOAD→Ｆ６→Ｆ３４９

ＳＥＴＭＫＲＦＲＥＱ→Ｆ６２０

F) ＦｒｅｑＣＯＵＮＴＭＥＡＳ→Ｆ６４７

ＳＰＵＲＩ ※2

ＣＡＬＣ→Ｆ６２９

Ｉ）ＩＭＰＲＥＦＥＲ→Ｆ６２４

ＳＷＥＥＰＡＬＬ

ＳＷＥＥＰ→Ｆ３２７

ＩＮＶＴＤＳＰＬ→Ｆ４５２

ＳＷＥＥＰＡＵＴＯ

ＳＷＥＥＰ→Ｆ２２６

Ｋ）ＫｅｙＳＴＦＲＥＱ→Ｆ３１９

ＳＷＥＥＰＭＡＮＵ

ＳＷＥＥＰ→Ｆ１２６

Ｌ）ＬＯＡＤＳＡＶＥ／ＬＯＡＤ→Ｆ２３２

Ｔ．Ｇ．ＭＯＤＥ

ＳＷＥＥＰ→Ｆ６５３

M)

Ｍ／ＦＰＲＯＢＥ

ＭＥＡＳ→Ｆ５４５

Ｔ）

ＴＲＡＣＥＲＳ２３２Ｃ→Ｆ１５６

ＭＡＸＨＤＣＡＬＣ→Ｆ２２８Ｕ）ＵＮＩＴＲＥＦＥＲ→Ｆ１～４２２

ＭＥＡＳＯＦＦＭＥＡＳ→（Ｆ１～５）→Ｆ６３６Ｖ）ＶＢＷＡＬＬＶＢＷ→Ｆ３２６

ＭＩＮＨＤＣＡＬＣ→Ｆ３２８ＶＢＷＡＵＴＯＶＢＷ→Ｆ２２６

ＭＫＲＤＥＬＴＡＭＫＲ→Ｆ２３０

ＶＢＷＭＡＮＵＶＢＷ→Ｆ１２６

ＭＫＲＮＯＲＭＭＫＲ→Ｆ１３０

※1 MSA338E only ※2 MSA358 only ※3 MSA338TG only

Ｍ）

–12–

5.2 Menu tree

The displayed items on the bottom of the screen correspond to the function keys under them, as shown in

the figure below:

“Displayed items on the bottom of the screen”

Ch Adj Occ E/F M/F Freq

Power Ch Pw

BW

ANT

PROBE

COUNT

CENTER FREQ KeyST EncST SET

100M

0.1M

NUM

MKR

BACK

CLEAR

SPACE

UNIT OFSdB IMP

dBm

dBμV

dBmV

dBV

0.0

50Ω

RBW

MANU AUTO ALL

FREQ

REFER

RBW

F1 F2 F3 F4 F5 F6

: Set the center frequency

: Set the reference level

: Set the RBW

* Refer to “7. Center Frequency” for details

* Refer to “9. Reference Level” for details

* Refer to “11. Resolution Bandwidth” for details

–13–

VBW

MANU AUTO ALL

Ch Adj Occ E/F M/F Freq

Power Ch Pw

BW

ANT

PROBE

COUNT

MODE BAND

MEAS

BAND CNTR WIDTH

OFF

MODE Adj Ch Pw REFERENCE MEAS

TOTAL OFS WIDTH

CNTR WIDTH

OFF

MODE RATIO MEAS

N% 99.5%

OFF

ANT MEAS

M301

OFF

VBW

MEAS

(1/2)

: Set the VBW

: Set the parameter

* Refer to “12. Video Bandwidth” for details

* Refer to “19. Measuring Function” for details

–14–

Ch Adj Occ E/F M/F Freq

Power Ch Pw

BW

ANT

PROBE

COUNT

PROBE MEAS

CP-2S

OFF

NORM MAXHD

MINHD AVER OVRWR

SPURI

**

256

OFF

SCALE

10dB 2dB

SWEEP DET

Ｔ．Ｇ．

MANU AUTO ALL

PosPK

ＭＯＤＥ

CALC

SCALE

SWEEP

MEAS

(2/2)

: Set the number

: Set the display scale

: Set the sweep time

* Refer to “16. Calculation Function” for details * SUPRI is only for MSA358

* Refer to “16. Display Scale” for details

* Refer to “13. Sweep Axis・Detection Mode” for details * T.G. MODE is only for MSA338TG

Input the probe ID (first time only) *Refer to “19.5 Magnetic field strength measurement” for details.

–15–

MKR PEAK SEARCH CONV

NORM DELTA

NORM PEAK NEXT

dBm→W

MKR PEAK SEARCH CONV

NORM DELTA

ZONE CNTR WIDTH

dBm→W

TRACE BAUD

CURR 38400

EXEC

CTRS B.L. BLCTR INVT BUZZR

140 ON

200

OFF

ON

MKR

RS232C

DSPL

: Move the marker position (NORM mode)

: Set the contrast

: Set the trace to transfer

: Set the zone center frequency (ZONE mode)

F3: Changing the marker mode

* Refer to “17. Marker · Peak Search” for details

Changing for marker mode of the one that selected it last.

* Refer to “23. Data Output” for details

* Refer to “21. Screen Control” for details

–16–

Main menu

Save menu

Load menu

Delete menu

TRACE ＰＡＲＡＭＥＸＥＣＵＴＥ

ＰＲＥ

００００

ＳＡＶＥＬＯＡＤＤＥＬ

ＳＥＴ

MODE SELECT

DISP

PRE

SAVE

LOAD CREAR

CLR

SET

TRACE

PARAM EXEC

00

SAVE

TRACE PARAM EXEC

00 00 LOAD

TRACE PARAM EXEC

00 00 CREAR

* Refer to “18.2 Save/Load (MSA358)” for details

SAVE/LOAD

：Set the address to store the trace or parameter

：Set the address to call the trace or parameter

：Set the address to elimination the trace or parameter

SAVE/LOAD

* Refer to “18.1 Save/Load (MSA338 (E/TG))” for details

：Set the address to store the trace

–17–

6. Preparing for Operation

6.1 Stand

Utilize the stand on the back to use the screen in an easier-to-see angle on the desk.

6.2 Connection to power supply

The MA300 AC adapter is both for the use with AC power supply and for charging the MB300 built-in

battery (optional). (charge is started automatically if AC adapter is connected)

Connect the adapter as in the figure below and connect the AC plug to the power line (100-240 VAC,

50/60 Hz). For static electricity protection, ground the unit by connecting the three cores if possible. Not

grounding the unit can damage it and the object measured. Do not use an AC adapter other than the

MA300 supplied with the unit. Using an AC adapter other than the MA300 may cause damage to the

unit.

* If the voltage of a battery becomes low at the time of battery operation, it will be displayed on a screen as

“Low Batt”, and a buzzer will sound (it sounds, even if it is set up so that a buzzer may not sound), and a

power supply will be shut off within several minutes. At that time, since the switch is the position of “ON”,

please push once and return to the position of “OFF”. If it is with the position of “ON” after a power supply

is shut off, it discharges inside, will be in electric overdischarge state, and becomes the cause of

contracting the life of a battery. Please take care.

Battery full charge time: approx.8hours

Battery operate time: the longest 150min. (back light OFF)

* When it is not operated at normal temperature,

and setting parameters is the initialization.

Battery full charge time with MBC300: approx.120 to 150min.

AC adapter

MA300

Connect to 100 to 240 VAC, 50/60Hz

–18–

* Moreover, under low temperature (near 0˚C), since a battery performance falls and voltage becomes low,

even when capacity remains enough, it may display on a screen as “Low Batt”.

* When a battery repeats charge and electric discharge, the fall (the fall of capacity and increase in internal

resistance) of a battery performance begins from about 200 times, and capacity falls to the original half by

about 500 times also under good conditions. On bad conditions (high temperature, etc.), the life of battery

will be shorter than this.

6.3 Replacing the fuse

5A/250V fuse (IEC127-2 sheet3, slow-blow type) is used for the battery power supply. When replacing it,

turn the power off first, disconnect the AC adapter, remove the battery cover and on the back as shown in

the figure below, remove the battery, and then take sufficient care to perform the replacement.

Be sure to use the fuse supplied with the unit, or specified one.

6.4 Installing the battery

When installing the battery, turn the power off first, disconnect the AC adapter, open the battery cover on

the back of the unit after removing the two screws as shown in the figure below, and then take sufficient

care to perform the installation. Be sure to use the specified battery, MB300.

6.5 Soft carrying case

When carrying the unit or using it outdoors, the soft carrying case is convenient. You can also carry the

AC adapter and printer with it, putting them in the accessory pouch.

* Avoid using the unit in the soft carrying case in places where temperature is high because, with

the soft carrying case, the temperature inside becomes higher than the ambient temperature.

Battery cover

Fuse

Connector

–19–

7. Center Frequency <FREQ>

Press

to switch over to the function screen shown below:

* Center frequency can be set between 0 to 3.3GHz.(MSA338 (E/TG))

* Center frequency can be set between 0 to 8.5GHz.(MSA358)

* Center frequency may shift for the time being (1 to 10 sec.), after changing a setting.

7.1 Setting with the step keys

([F1], [F2])

1. Each time is pressed, the center frequency decreases in the set step size.

2. Each time is pressed, the center frequency increases in the set step size.

3. Setting the step size:

Each time is pressed, it is set in the following order:

0.1MHz 1MHz 10MHz 100MHz

7.2 Setting with the encoder

1. When is turned, the center frequency changes in the set step size.

2. Setting the step size:

Each time is pressed, it is set in the following order:

0.1MHz 1MHz 10MHz 100MHz

7.3 Setting with the numeric keys

1. Press to enter into the numeric key input mode.

* [F5] functions as the <CLEAR> key. [F6] functions as the <BACK SPACE> key.

* In this mode, setting with [F1], [F2] or the encoder is not accepted.

2. The center frequency can be directly input according to the “Numeric Key Mapping Diagram”.

3. The value is entered by pressing a unit key, [MHz (RS232C)] or [GHz (DSPL)].

* Any figures below the resolution (100 kHz) will be discarded.

CENTER FREQ KeyST EncST SET

100M 0.1M NUM MKR

F2 F3 F4

F5

FREQ

F1

F1 F2 F3

F4

F5

F6

–20–

4. Changing the setting:

: Deletes the entire value and allows you to input one from the beginning.

: Deletes the last input figure.

5. Canceling the numeric key mode:

: Enables setting with step keys ([F1], [F2]) or the encoder again.

“Numeric Key Mapping Diagram”

7.4 According to the Marker position

1. When is pressed, the center frequency is set according to the frequency of current marker

position.

* Any figures below the resolution (100 kHz) will be discarded.

* This does not operate when the marker is not displayed. (and the function display disappears.)

8. Frequency Span <SPAN>

Press Use to set the frequency span.

*The frequency span can be set only with the encoder. Function keys are not available.

MSA338(E/TG)： When is turned, the frequency span changes in the specified step.

ZERO 200k 500k 1M 2M 5M 10M

20M 50M 100M 500M 1G 2G FULL (3.3G)

F5

F6

FREQ

SPAN

[Hz]

SAVE

MEAS

MKR

CALC

LOAD

4 5 0 9

RBW

DSPL

PRINT

AUTO TUNE

RUN

HOLD

RS232C

SWEEP SCALE

1 2 3 8 7 6

.

MHz

VBW

F6

–21–

MSA358： When is turned, the frequency span changes in the specified step.

ZERO 200k 500k 1M 2M 5M 10M

20M 50M 100M 500M 1G 2G 5G FULL (8.5G)

■ Switching frequency band

MSA358 consists of the following three bands.

Frequency band Measured frequency range

Base band 50kHz to 3.5GHz

Band 1 - 3.3GHz to 6.3GHz

Band 1 + 6. 2GHz to 8.5GHz

The frequency band is selected to be the least band number, based on Center frequency and Span.

(At the span less than 200MHz, only one band is used.)

When the setting frequency range belongs to two bands, the lower band has priority.

Note: Switch frequency band allows only to automatic setting.

The frequency connection point of two bands is fixed as below table.

Two bands Frequency connection point

Base band and band 1 - 3.4GHz

Band 1 – and band 1 +

6.2GHz

Note: The trace may fall into disorder just a little at the frequency connection point. For the precise

measurement is needed, Center frequency or Span should be set so that the measured

frequency range is in one band.

9. Reference Level <REFER>

Press

to switch over to the function screen shown below:

UNIT OFSdB IMP

dBm dBμV dBmV dBV 0.0 50Ω

REFER

F1 F2 F3

F4

F5

F6

[Hz]

–22–

9.1 Setting the Reference level

1. When is turned, the reference level changes.

(Refer to “9.3 Reference level setting range for each unit” for details.)

9.2 Switching units of amplitude axis

(Refer to “19.4 Electric field strength measurement” and

“19.5 Magnetic field strength measurement” for dBμV/m and dBμA/m .)

1. Press to switching units to dBm.

Press to switching units to dBμV

Press to switching units to dBmV

Press to switching units to dBV

9.3 Reference level setting range for each unit

UNIT dBm dBμV dBmV dBV

MAXIMUM 10 117 57 -3

MINIMUM -40 67 7 -53 MINIMUM

(shifted trace data)

-60 47 -13 -73

“Unit that is able to use it with the measuring function”

* When the reference level is set between the “MINIMUM” and “MINIMUM (shifted trace data)”,

the trace in “MINIMUM” is shifted and displayed on a screen. When the reference level is set below to

the “MINIMUM”, the ATT display area is displayed as “S/W AMP”.

Calculation expression (conversion formula to and from dBm)

· A [dBμV] = 107+X [dBm] · B [dBmV] = 47+X [dBm] · C [dBV] = -13+X [dBm]

· D [dBμV/m] = 68.8/λ×√(X/Gar) [dBm] λ: Wavelength[m] Gar: Antenna absolute gain [times]

· E [dBμA/m] = 107+X+F [dBm] F: probe calibration coefficient * changes by frequency

UNIT dBμV/m (Electric filed strength measurement)

dBμA/m

(Magnetic field

Setting M301 M302 M303 M304 M305 M306 M307

CP-2S

MAXIMUM 143 146 148 150 137 159 141 160 to 203

MINIMUM 93 96 98 100 87 109 91 110 to 153 MINIMUM

(shifted trace data)

73 76 78 80 67 89 71 90 to 133

F1

F2

F3

F4

–23–

9.4 Relation between the reference level and ATT · AMP

(in dBm indication)

The programmable attenuator (ATT) and the input amplifier (AMP) inside MSA338/MSA358 are a automa-

tically set according to the setting value of the reference level (REFER). (ATT cannot be set independently.)

* When the input signal level is higher than the suitable level for 1st mixer’s terminal, it generates

harmonics distortion and spurious. MSA338/MSA358 is designed so that the input signal level of 1st

mixer is determined to proper level by the reference level.

9.5 Setting the offset level

1. to set the offset of reference level.

When amplifier and attenuator are used externally, display level can be matched by offset.

The setting range is from -50.0 to 50.0dB (0.1dB step).

Offset is calculated to the reference level, and it is displayed.

* When offset is set, it is displayed on LEVEL display area as “OFS”.

Furthermore, the value of a marker point is displayed reflecting the calculated offset.

* Offset of dBμV, dBmV, dBV, W, etc. are changed automatically.

REFER (dBm)

ATT (dB)

AMP (dB)

REFER (dBm)

ATT (dB)

AMP (dB)

REFER (dBm)

ATT (dB)

AMP (dB)

REFER (dBm)

ATT (dB)

AMP (dB)

10

25 0

-3 12 0

-16

20 21

-29

7 21

9

24 0

-4 11 0

-17

19 21

-30

6 21 8 23 0

-5 10 0

-18

18 21

-31

5 21 7 22 0

-6 9 0

-19

17 21

-32

4 21 6 21 0

-7 8 0

-20

16 21

-33

3 21 5 20 0

-8 7 0

-21

15 21

-34

2 21 4 19 0

-9 6 0

-22

14 21

-35

1 21 3 18 0

-10

5 0

-23

13 21

-36

5 26 2 17 0

-11

4 0

-24

12 21

-37

4 26 1 16 0

-12

3 0

-25

11 21

-38

3 26 0 15 0

-13

2 0

-26

10 21

-39

2 26 -1 14 0

-14

1 0

-27

9 21

-40

1 26

-2

13 0

-15

0 0

-28

8 21

F5

–24–

9.6 Setting the input impedance compensation

1. F6 to select the input impedance compensation.

50Ω 75Ω

When coaxial adaptor MA301 (50Ω/75Ωimpedance converter) is attached, and choose “75Ω”, then

offset is calculated to the reference level, and it changes for the measured value as 75Ωsystem, and

display it.

* When “75Ω” is selected, “75Ω” is displayed in the LEVEL area on the screen. When “75Ω” is

selected, the offset is set to 5.7dB (insertion loss of MA301).

Moreover, can set offset.

Moreover, while setting the unit of the marker point to [W, V, V/m] etc, it changes from dBm

correctly.

* When you set it as “75Ω”, please be sure to attach coaxial adapter MA301 (50Ω/75Ω

impedance converter).

10. Display Scale <SCALE>

Press

to switch over to the function screen shown below:

10.1 Setting with the keys

([F1], [F2])

1. Press to set the 10dB/div display scale.

2. Press to set the 2dB/div display scale.

10.2 Setting with the encoder

1. Turn to switch between the 10dB/div and 2dB/div display scale.

10dB 2dB

* In 2dB/div, display level may not become smaller than fixed level, by frequency

compensation.

SCALE

10dB 2dB

F2

F1

SCALE

F1 F4 F2 F3 F5 F6

–25–

11. Resolution Bandwidth <RBW>

Press

to switch over to the function screen shown below:

11.1 MANUAL mode

1. Press or turn the to enter MANUAL mode. Use to set the RBW.

MSA338(TG)/358： 3kHz 10kHz 30kHz 100kHz 300kHz 1MHz 3MHz

MSA338(E)： 3kHz 9kHz 30kHz 120kHz 300kHz 1MHz 3MHz

11.2 AUTO mode

1. When is pressed, optimum RBW is set according to the settings of SPAN and SWEEP.

* Since “*” is displayed on the right end of RBW setting value display portion of a screen

when set as AUTO mode, it can check being set as AUTO mode.

11.3 ALL AUTO mode

1. When is pressed, optimum RBW, VBW and SWEEP are set according to the setting of

SPAN.

* Since “*” will be displayed on the right end of each setting value display portion of RBW, VBW,

and SWEEP if ALL AUTO mode is set up, it can check being set as ALL AUTO mode.

* When RBW is set as 3kHz to 30kHz, selectivity (60dBc) becomes larger than an actual value, by

influence of SSB phase noise.

RBW

MANU AUTO ALL

F2

F3

* Any selected parts of MANU, AUTO and ALL become inverted display.

RBW

F1

F1 F2 F3 F4 F5

–26–

12. Video Bandwidth <VBW>

Press

to switch over to the function screen shown below:

12.1 MANUAL mode

1. Press or turn the to enter MANUAL mode. Use to set the VBW.

100Hz 300Hz 1kHz 3kHz 10kHz 30kHz

100kHz 300kHz 1MHz

12.2 AUTO mode

1. When is pressed, VBW is set according to the settings of SPAN and SWEEP.

* Since “*” is displayed on the right end of VBW setting value display portion of a screen

when set as AUTO mode, it can check being set as AUTO mode.

12.3 ALL AUTO mode

1. When is pressed, RBW, VBW and SWEEP are set according to the setting of SPAN.

* Since “*” will be displayed on the right end of each setting value display portion of RBW, VBW,

and SWEEP if ALL AUTO mode is set up, it can check being set as ALL AUTO mode.

13. Sweep Axis · Detection Mode <SWEEP>

Press

to switch over to the function screen shown below:

VBW

MANU AUTO ALL

SWEEP DET

MANU AUTO ALL PosPK

VBW

F2

F3

* Any selected parts of MANU, AUTO and ALL become inverted display.

SWEEP

F1

* Any selected parts of MANU, AUTO and ALL become inverted display.

When [F4] is pressed, the part of DET become inverted display. For MSA338TG [F6] refer to “22. Tracking Generator Mode”

F1 F2 F3

F4

F5

F6

F1 F2 F3

F4

F5

F6

–27–

13.1 MANUAL mode

1. Press f1 or turn the to enter MANUAL mode. Use to set the SWEEP.

10ms 30ms 0.1s 0.3s 1s 3s 10s 30s

* MSA338 (E/TG): Can't set 10ms at the FULLSPAN. * MSA358: 30ms to 30s and AUTO @Span 0 to 5GHz ，Full span

13.2 AUTO mode

1. When is pressed, SWEEP is set according to the settings of SPAN and RBW.

* Since “*” is displayed on the right end of SWEEP setting value display portion of a screen

when set as AUTO mode, it can check being set as AUTO mode.

13.3 ALL AUTO mode

1. When is pressed, RBW, VBW and SWEEP are set according to the setting of SPAN.

* Since “*” will be displayed on the right end of each setting value display portion of RBW, VBW,

and SWEEP if ALL AUTO mode is set up, it can check being set as ALL AUTO mode.

13.4 Setting the Detection mode (For MSA338E, refer to “20. EMI test”)

1. Pressing

allows you to change the method to capture the trace.

PosPK SMPL NegPK

· PosPK (Positive Peak)

· SMPL (Sample)

· NegPK (Negative Peak)

14. AUTO Tuning <AUTO TUNE>

When is pressed, center frequency is set at the spectrum of the maximum level in

the 3.3GHz(MSA338(E/TG))/8.5GHz(MSA358) band, and in addition, optimum reference level, RBW,

VBW and SWEEP are set according to the setting of SPAN.

* The AUTO tuning does not operate normally, at the time of the following 4 conditions.

1) ZERO SPAN

2) FULL SPAN

3) Signal level is -40dBm or lower

4) Signal frequency is 50MHz or lower

15. Hold/Run <HOLD/RUN>

Press to switch to between sweep halt and continuous sweep.

* This operates only with the key press, with no function indication.

AUTO TUNE

HOLD/RUN

F2

F3

F4

: Traces the maximum value of the sample points.

: Traces the momentary value of the sample points.

: Traces the minimum value of the sample points.

F1

–28–

16. Calculation Function <CALC>

Press

to switch over to the function screen shown below:

16.1 NORM mode

1. Press . Calculation is not performed in this mode. The number of sweeps is always

unlimited.

* Usually, please choose this mode.

* “NORMAL” is displayed in the CALC area on the LCD screen.

(Refer to “4. Description of Display” for details)

16.2 MAX HOLD mode

1. Press Use to set the number of sweeps.

2. Sweeps are performed the set number of times, the maximum value of each point of trace data is

displayed as a trace, and then sweep is halted.

2 4 8 16 32 64 128

256 512 1024 (unlimited)

* “MAX --- (number of sweeps)” is displayed in the CALC area on the LCD screen.

(Refer to “4. Description of Display” for details)

16.3 MIN HOLD mode

1. Press Use to set the number of sweeps.

2. Sweeps are performed the set number of times, the minimum value of each point of trace data is

displayed as a trace, and then sweep is halted.

2 4 8 16 32 64 128

256 512 1024 (unlimited)

* “MIN --- (number of sweeps)” is displayed in the CALC area on the LCD screen.

(Refer to “4. Description of Display” for details)

NORM MAXHD MINHD AVER OVRWR

**

256

F1

F2

F3

CALC

* After sweeps stops, press to restart sweep.

* Press [F1] to [F5] to set the CALC mode.

* Use to set the number of sweeps.

HOLD/RUN

**

F1 F2 F3

F4

F5

F6

–29–

16.4 AVERAGE mode

1. Press Use to set the number of sweeps.

2. Sweeps are performed the set number of times, average value of each point of trace data is

displayed as a trace, and then sweep is halted.

2 4 8 16 32 64 128 256

* “AVG --- (number of sweeps)” is displayed in the CALC area on the LCD screen.

(Refer to “4. Description of Display” for details)

16.5 OVER WRITE mode

1. Press to enter into the OVER WRITE mode, where traces are written one over another.

The number of sweeps is unlimited.

* “OVER WR” is displayed in the CALC area on the LCD screen.

(Refer to “4. Description of Display” for details)

* Only the last one trace is saved.

16.6 SPURIOUS FREE mode (MSA358 only)

1. By pushing it will become the SPURIOUS FREE mode which simply deletes

spurious characteristic at band 1+.

* "SPR." is displayed beside CALC in liquid crystal screen CALC area.

(Refer to “4. Description of Display” for details)

* The SPURIOUS characteristic at band 1+ is a spurious calculated by the following formula

for a input signal over 6.76GHz, in case of measurement at band 1+.

(Refer to “8. Frequency Span” for details)

Spurious characteristic at band 1+ [GHz] = (Input signal [GHz] +5.64GHz) /2

* SPURIOUS FREE mode

1. SPURIOUS FREE mode is the mode which simply deletes SPURIOUS characteristic

at band 1+.

2. SPURIOUS FREE mode has a special effect in measurement of a regular wave.

3. If SPURIOUS FREE mode is used in measurement of a signal with level change or frequency

change, the phenomenon will happen that an amplitude level falls.

* How to discriminate SPURIOUS characteristic at band 1+ in manual operation

The procedure for discriminating SPURIOUS characteristic at band 1+ is as follows.

1. Set to SPAN = 10MHz.

2. Set the frequency of SPECTRUM to be discriminated to the center frequency

of MSA358.

F4 F5

F6

–30–

3. Verify that SPECTRUM to be discriminated is at the center of a screen, and change

the main frequency by +1MHz.

4. Judge by measured trace data.

The same frequency as the frequency set up first. Measurement data.

2MHz over Main frequency changed by +1MHz Spurious characteristic at band 1+

Example: Discriminate SPECTRUM displayed on 7GHz.

1. Set MSA358 to SPAN = 10MHz and main frequency = 7 GHz.

2. Verify that SPECTRUM is at 7 GHz.

3. Set MSA358 to Main frequency = 7.001 GHz.

4. Measure spectrum and distinguish as follows.

Spectrum is at 7GHz. Measurement data.

Spectrum is at 7.003 GHz. SPURIOUS characteristic at band 1+.

17. Marker · Peak Search <MKR>

Press to switch over to the function screen shown below:

· The display when a NORM marker is selected.

The marker is manually moved at NORM mode. Peak search function, NEXT peak search function is

available.

· The display when a ZONE marker is selected.

The marker moves to the biggest peak position automatically at ZONE mode, inside specified zone.

MARKER PEAK SEARCH CONV

NORM DELTA NORM PEAK NEXT dBm→W

MARKER PEAK SEARCH CONV

NORM DELTA ZONE CNTR WIDTH dBm→W

F5

F6

F1 F2 F3

F4

MKR

F5

F6

F1 F2 F3

F4

–31–

17.1 Moving the marker

Use to move the marker.

Use to put DELTA REF at the current marker position.

17.2 Setting the peak search <PEAK SEARCH>

· NORM mode (Use to select NORM.)

Use to move the marker to the maximum peak position.

Use to move the marker successively from higher to lower peak positions other than the

maximum peak. (The marker moves to 10 peaks.)

* When you move the marker to the 10th peak or moving the marker, the NEXT peak search

function stops and the function display disappears.

· ZONE mode (Use to select ZONE.)

Use to move the center position.

Use to change the width.

17.3 Changing the unit of marker point

Press

to change the unit of marker point.

When unit of reference level is dBm, the unit is changed from [dBm] to [W].

When unit of reference level is dBμV, the unit is changed from [dBμV, dBmV, dBV] to [V].

When unit of reference level is dBμV/m, the unit is changed from [dBμV/m] to [V/m].

When unit of reference level is dBμA/m, the unit is changed from [dBμA/m] to [A/m].

Moreover, according to each unit, it is displayed as follows.

[W] [W, mW, μW, nW, pW, fW]

[V] [V, mV, μV, nV]

[V/m] [V/m, mV/m, μV/m, nV/m]

[A/m] [A/m, mA/m, μA/m, nA/m]

F2 F3 F4

F5

F4 F5

F6

F3

F1

–32–

18. Save/Load <SAVE/LOAD>

18.1 Save/Load (MSA338(E/TG))

Press

to switch over to the function screen shown below:

18.1.1 Setting the location to store the trace

1. Pressing allows you to set the number of location to store the trace.

2. Use to set the number of location.

00 01 02 03 04 ··· 98 99

* The part of TRACE become inverted display after it is selected.

18.1.2 Setting the location to store the parameter

1. Pressing allows you to set the number of location to store the parameter.

2. Use to set the number of location.

00 01 02 03 04 ··· 98 99

* The part of PARAM become inverted display after it is selected.

18.1.3 Saving the data

1. Press to save the data at the set number.

* This saves the trace when TRACE is selected, or the setting parameters when PARAM is selected.

* “*” is displayed on the right end of the number of location place at which data is saved.

* It can be overwritten, too

18.1.4 Loading the data

1. Press to read out the data at the set number.

* This reads out the trace when TRACE is selected. The setting parameter of the loaded trace is

displayed in the loaded trace information display area.

(Refer to “4. Description of Display” for details)

* This reads out the setting parameters when PARAM is selected.

TRACE PARAM EXECUTE PRE

00 00 SAVE LOAD DEL SET

F2

F3

F4

F1

SAVE/LOAD

F1 F2 F3

F4

F5

F6

–33–

* When you load a trace, the current trace disappears, the HOLD state is set, and the loaded trace

is displayed. For the loaded trace, you can use the marker, but cannot use a measuring function.

When you press the HOLD/RUN key, the loaded and the current traces are displayed

overlapping each other.

* “*” is displayed on the right end of the number of location place at which data is saved.

* When you search the trace or setting parameters to be read out, repeat

···, and load the trace or setting parameters in turn.

18.1.5 Clearing the loaded trace

1. Press to clear the loaded trace that has been displayed.

18.1.6 Presetting (Initialization)

1. Press to preset the setting parameters as the Initialization shown below:

“Initialization”

Items Parameter

Center frequency

1GHz

Frequency span 20MHz

Reference level 10dBm

Offset 0.0dB

Impedance 50Ω

Sweep time 0.3s

Detection mode Positive peak mode

RBW 100kHz

VBW 10kHz

Display scale 10dB/div

F5

F6

F4 F4

–34–

18.2 Save/Load (MSA358)

Press

to switch over to the function screen shown below:

18.2.1 Saving the data

1. Press to move to a save menu.

2. Operating

or chooses objects (trace or parameter).

3. Use to set the number of location.

00 01 02 03 04 ··· 98 99

4. Press to save the data.

* This saves the trace when TRACE is selected, or the setting parameters when PARAM is selected.

* “*” is displayed on the right end of the number of location place at which data is saved.

* It can be overwritten, too

18.2.2 Loading the data

1. Press to move to a load menu.

2. Operating

or chooses objects (trace or parameter).

3. Use to set the number of location.

00 01 02 03 04 ··· 98 99

4. Press to load the data.

* This reads out the trace when TRACE is selected. The setting parameter of the loaded trace is

displayed in the loaded trace information display area.

(Refer to “4. Description of Display” for details)

* This reads out the setting parameters when PARAM is selected.

* When you load a trace, the current trace disappears, the HOLD state is set, and the loaded trace

is displayed. For the loaded trace, you can use the marker, but cannot use a measuring function.

ＭＯＤＥＳＥＬＥＣＴＤＩＳＰＰＲＥ

ＳＡＶＥＬＯＡＤＣＬＥＡＲＣＬＥＡＲＳＥＴ

SAVE/LOAD

Ｆ１

Ｆ２Ｆ３

Ｆ４

Ｆ５

F3

–35–

When you press the HOLD/RUN key, the loaded and the current traces are displayed

overlapping each other.

* “*” is displayed on the right end of the number of location place at which data is saved.

18.2.3 Clearing the data

1. Press to move to a clear menu.

2. Operating

or chooses objects (trace or parameter).

3. Use to set the number of clear.

00 01 02 03 04 ··· 98 99

4. Press to clear the data.

18.2.4 Clearing the loaded trace

1. Press to clear the loaded trace that has been displayed.

18.2.5 Presetting (Initialization)

1. Press to preset the setting parameters as the Initialization shown below:

“Initialization”

Items Parameter

Center frequency

1GHz

Frequency span 20MHz

Reference level 10dBm

Offset 0.0dB

Impedance 50Ω

Sweep time 0.3s

Detection mode Positive peak mode

RBW 100kHz

VBW 10Hz

Display scale 10dB/div

F3

F5

F1 F2

F3

–36–

19. Measuring Function<MEAS>

Press

to switch over to the function screen shown below:

Select the measuring function:

Ch Power · · · · · · · · · · · · · ·

Adj Ch Pw · · · · · · · · · · · · ·

Occ BW · · · · · · · · · · · · · · · ·

E/F ANT · · · · · · · · · · · · · · ·

M/F PROBE · · · · · · · · · · ·

Freq COUNT · · · · · · · · · ·

* Once you select the measuring function, pressing next time will directly bring up the

function screen for the function you selected the last time. If you want to stop the measuring function,

or if you want to select another measuring function, press [F6] (MEAS OFF). This stops the measuring

function and switches to the above screen, which allows you to select the measuring function.

* The measuring function is stops, when push while these 4 functions (Channel power,

Adjacent channel leakage power, Occupied frequency bandwidth, Frequency counter) are selected.

Because each 4 functions and marker operation cannot be used simultaneously. Similarly, the function

of the marker stops, when the functions of these 4 measurements are selected while using the marker.

* The unit displays data in 251 horizontal dots, but it internally captures the trace and calculates the

measured value (Channel power measurement, Adjacent channel leakage power measurement and

Occupied frequency bandwidth measurement) in 1004 dots.

Ch Adj Occ E/F M/F

Freq

Power Ch Pw BW ANT PROBE

COUNT

F2

F3

F4

F5

F1 MEAS

Channel power measurement

Adjacent channel leakage power measurement

Occupied frequency bandwidth measurement

Electric field strength measurement

Magnetic field strength measurement

Frequency counter (factory option)

MEAS

F1 F2 F3

F4

F5

F6

MKR

F6

–37–

19.1 Channel power measurement <Ch Power>

Measures the sum of the power in the zone specified. Two modes, TOTAL and BAND, are available.

· TOTAL mode

[Use (MODE) to select TOTAL.]

Measure the sum of the power in the zone specified by the center frequency and frequency span (whole

range of the screen).

· BAND mode

[Use (MODE) to select BAND.]

Measure the sum of the power in the zone specified by the zone center frequency and zone width.

* It is shown on MEAS area of LCD as “CP TOTAL”

* The measured value is displayed at the right lower corner

on the screen.

* It is shown on MEAS area of LCD as “CP BAND”.

* The measured value and setting parameter are

displayed at the right lower corner on the screen.

1. Use (CNTR) to set the

zone center frequency.

2. Use (WIDTH) to set the

zone width.

F1

F2

F3

[Channel power

[Measured value]

[Channel power

[Measured value]

[Parameter]

Measurement mode]

measurement mode]

F1

–38–

19.2 Adjacent channel leakage power measurement <Adj Ch Pw>

Measures the adjacent channel leakage power as the ratio of the power in the range specified by the offset

frequency against the reference frequency (reference carrier frequency) and the bandwidth, to the carrier

wave power. Two channels of adjacent waves on the upper and lower sides of the same offset frequency are

measured. In addition, you can select from three modes, TOTAL (total power method), REF BAND (in-band

method) and PEAK (reference level method), according to the classification of definitions of carrier wave.

· Mode selection and measurement

[Use (MODE) to select a mode: TOTAL, BAND or

PEAK.]

* It is each shown on MEAS area of LCD as “ACP TOT”, “ACP BAND” or “ACP PK”.

* The measured value and setting parameter are displayed at the right lower corner on the screen.

· Definition of the reference carrier for each mode

1. Use (Adj Ch OFS) to set the

offset frequency of adjacent channel.

* The offset is from the center of the reference carrier wave.

2. Use (Adj Ch WIDTH) to set the

band width of adjacent channel.

3. Use (REFERENCE CNTR) to set

the center frequency of reference carrier.

* [F4] is only for the TOTAL and BAND mode.

4. Use (REFERENCE WIDTH) to set

the band width of reference carrier.

* [F5] is only for the BAND mode.

F1

F2 F3

F4

F5

TOTAL (total power method)

This is based on the sum total of the

power of whole range on the screen.

Use [F4] to set center frequency of

the reference carrier wave.

BAND (in-band method)

This is based on the sum total of the

po

wer within the set bandwidth. Use

[F4] to set center frequency of the

reference carrier wave.

PEAK (reference level method)

This is based on the power of the pe-

ak on the screen. Center frequency of

the reference carrier wave is set up to

the peak inside the screen automatically.

[Measured value]

[Adjacent channel

Leakage power

Measurement mode]

[Parameter]

F2

–39–

19.3 Occupied frequency bandwidth measurement <Occ BW>

Measures the bandwidth at the point of N [%] of total power (N% POWER) or the bandwidth at the point X

[dB] down from the peak level (XdB DOWN). Two modes are available.

· N% POWER mode

[Use (MODE) to select N%.]

Measures the bandwidth at the point of N [%] of total power displayed on the screen.

· XdB DOWN mode

[Use (MODE) to select XdB.]

Measures the bandwidth at the point X [dB] down from the peak level,

* It is shown on MEAS area of LCD as “OBW N%”

* The measured value is displayed at the right lower

corner on the screen.

1. Use (RATIO) to set

the percentage to total power.

* Setting range: 80.0 to 99.9%

* It is shown on MEAS area of LCD as “OBW XdB”

* The measured value is displayed at the right lower

corner on the screen.

1. Use (dB) to set

the down level from peak level.

* Setting range: 0.1 to 80.0dB

F1

F2

[Occupied frequency

[Measured value]

[Parameter]

bandwidth

measurement mode]

[Parameter]

[Occupied frequency

bandwidth

measurement mode]

F3

–40–

19.4 Electric field strength measurement <E/F ANT>

Measures electric field strength by connecting an optional antenna.

Allows using an antenna other than options by creating and inputting the original compensation table.

(Refer to “25.6 Writing of original compensation data” for how to create and write)

“Specifications of the antenna (antenna gain and VSWR are specified at a center of frequency range).”

* Measured value varies depending on how to have MSA338(E/TG)/358 main unit. Moreover, if the person who has is different, measured value will vary. Because M305/307 is 1/4 λ whip antenna. Therefore, in the measurement used an antenna M305/307, measurement errors occurs. The error value is several dB or 10dB or more. In order to lessen the error value, use it, separating from the body as much as possible so that there is no influence of human body.

Items M301 M302 M303 M304 M305 M306 M307

Type Sleeve Sleeve Sleeve Sleeve 1/4 λ whip

Sleeve 1/4 λ whip

Frequency

range

0.8 to

1.0GHz

1.25 to

1.65GHz

1.70 to

2.20GHz

2.25 to

2.65GHz

300 to 500

MHz

4.7 to 6.2 GHz

470 to 770

MHz

Antenna gain +1dBi or

higher

+1dBi or

higher

+1dBi or

higher

+1dBi or

higher

+1dBi or

higher

+1dBi or

higher

+1dBi or

higher

VSWR 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower 1.5 or lower

Dimensions 7.5φ×250

mm

7.5φ×250

mm

7.5φ×180

mm

7.5φ×180

mm

8.0φ×195

mm

7.5φ×120

mm

8.0φ×123

mm

Weight approx.20g approx.20g approx. 15g approx.15g approx.30g approx.10g approx.15g

Reference level

setting range

(except for the

minimum

value in

screen shift)

93 to

143dBμV/

m

96 to

146dBμV/

m

98 to

148dBμV/

m

100 to

150dBμV/

m

87 to

137dBμV/

m

109 to

159dBμV/

m

91 to

141dBuV/

m

Antenna

M301

M302

M303

M304

M305

M306

M307

[Measurement environment]

* Please receive by the rear side of MSA338 (E/TG)/MSA358.

F4

[Antenna connection]

MSA338 (E/TG)/MSA358

–41–

· Mode selection and measurement

Use (ANT) to select an antenna, M301, M302, M303, M304, M305, M306 ,M307or USER.

As soon as the antenna is entered, the measurement is taken.

* It is each shown on MEAS area of LCD as “E/F M301”, “E/F M302”, “E/F M303”, “E/F M304”,

“E/F M305”, “E/F M306” , “E/F M307” or “E/F USER”.

* “USER” is an original compensation table the user crates.

* Trace may exceed from a screen by antenna gain compensation.

·

Antenna directivity (reference data)

* All the data are those when the antenna is connected to the RF input with no obstacles around.

* However, data of M305/307 is reference data of the conditions in which people have MSA338(E/TG)

/MSA358 attached M305/307.

So, the directivity changes in practice, because, for example, the unit is carried by people.

Unit of amplitude axis changes to [dBμV/m]

*

Optimum center frequency and frequency span are

set according to the antenna.

In addition, a trace is not displayed for

frequencies outside those supported by the

antenna.

Example) case of M301

Center frequency: 900MHz

Frequency span: 200MHz

F1

0°

90° 270°

180°

[Electric field strength [Measured value]

E plane: X-Y axis (X direction=0°)

Y

X

(Refer to “25.3 Command description” for details.)

–42–

M301 (900MHz, E plane) Antenna gain vs Frequency

-4

-3

-2

-1

0

1

2

3

4

0.8 0.85 0.9 0.95 1

Frequency (GHz)

ANT Gain (dBi)

M302 (1.5GHz, E plane) Antenna gain vs Frequency

-1.5

-0.5

0.5

1.5

2.5

3.5

4.5

1.25 1.35 1.45 1.55 1.65

Frequency (GHz )

ANT Gain (dBi)

–43–

M303 (2.0GHz, E plane) Antenna gain vs Frequency

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

1.7 1.8 1.9 2 2.1 2.2

Frequency (GHz)

ANT Gain (dBi)

M304 (2.4GHz, E plane) Antenna gain vs Frequency

1

1.5

2

2.5

3

3.5

4

4.5

5

5.5

2.25 2.35 2.45 2.55 2.65

Frequency (GHz)

ANT Gain (dBi)

–44–

M305 (horizontal plane) Antenna gain vs Frequency

0.0

1.0

2.0

3.0

4.0

5.0

0º

30º

60º

90º

120º

150º

180º

210º

240º

270º

300º

330º

300MHz 400MHz 500MHz

-0.2

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

300 325 350 375 400 425 450 475 500

Frequency (MHz)

ANT Gain (dBi)

M306 (5.4GHz, E plane) Antenna gain vs Frequency

M307 (horizontal plane) Antenna gain vs Frequency

4.70 Frequency（GHz）

3.5

3

2.5

2

1.5

1

ANT Gai

ｎ

(ｄＢｉ）

4.95

5.20 5.45

5.70 5.95

6.20

1. 6

1. 7

1. 8

1. 9

2

47 0 5 2 0 5 70 620 670 7 2 0 7 70

Freque n cy (MHz)

A N T G ai n ( dB i)

–45–

19.5 Magnetic field strength measurement <M/F PROBE>

Measures the magnetic field strength using the optional magnetic field probe CP-2S.

“Specifications of magnetic field probe CP-2S”

(Refer to the operating manual for CP-2S for details.)

Items Specifications

Frequency range 10MHz to 3GHz

Space resolution (-6dB)

approx.0.25 mm

(Depending on objects)

Dimensions

Outside: 12φ×135mm

probe tip: 2mm(W)×1mm(T)

Connector SMA (P)

Reference level setting

range (maximum)

160 to 203dBμA/m

Reference level setting

range

(except for the

minimum value in

screen shift)

110 to 153dBμA/m

Measurement error

approx.±1dB

(Probe simple substance)

The tip of the optional magnetic field probe

CP-2S is made of glass-

ceramic board. Take

care when handling the probe even

though

the strength of the glass-

ceramic board is

sufficiently ensured under normal operation.

F5

Magnetic field probe

CP-2S

–46–

· Mode selection and measurement

Use (PROBE) to select a probe, CP-2S or USER. As soon as the probe is entered, the

measurement is taken.

* It is each shown on MEAS area of LCD as “M/F CP2S” or “M/F USER”.

* “USER” is an original calibration table the user creates.

(Refer to “25.3 Command description” for details.)

Unit of amplitude axis are changing to [dBμA/m]

* A trace is not displayed for frequencies

outside those supported by the probe.

F1

[Measuring mode]

[Measured value]

–47–

19.6 Frequency counter <Freq COUNT> (factory option)

Measure the frequency that is displayed on the spectrum of center on screen, at high accuracy. Set frequency

roughly, as center frequency. And adjust the center frequency and the reference level so that the level of the

center on screen becomes as high as possible.

“Specifications”

* Setting range of sweep time is 0.1s or more.

* It does not correspond to FULL SPAN.

· Measurement

Items Specifications

Measurement

frequency range

1MHz to 3.3GHz(MSA338(E/TG))/1MHz to 8.5GHz(MSA358)

Measured level

+10 to -70dBm (CF: 1MHz to 2GHz, RBW:100kHz)

+10 to -60dBm (CF: 2GHz to 8.5GHz, RBW: 100kHz)

Measured

resolution

100Hz

Display digits 8 digits max

Reference X’tal

Accuracy: ±2ppm (23˚C),

Temp. characteristics: ±5ppm (0 to 40˚C)

[Measuring mode] [Measured value]

1. Press to enter frequency counter mode.

* It is shown on MEAS area of LCD as “F COUNT”.

Since the frequency of spectrum

of a screen center is

measured, please set up spectrum of

frequency to measure

roughly to become the center of a screen. The measured value

is displayed on the lower right of a screen.

* When the level of spectrum is small and cannot

measure, it is displayed as “Non signal”.

* If frequency counter (factory option) is not mounting,

it is always displayed as “Invalid for F/C”.

F6 F6

－48－

20. EMI Test (MSA338E)

20.1 Additional function for EMI test

●

Detection mode （Refer to “13.4 Setting the Detection mode”）

Changing of the detection mode is performed with pressing

Pos PK SMPL NegPK QP AV

In MSA338E, the QP detection and the AV detection are added for the EMI test.



PosPK (Positive Peak) : Trace the maximum value of the sample points.



SMPL (Sample) : Trace the momentary value of the sample points.



Neg PK (Negative Peak) : Trace the minimum value of the sample points.



QP (Quasi Peak) : Trace the quasi peak value of the sample points.



AV (Average) : Trace the average value of the sample points.

As for the QP detection, the following characteristics are chosen from the setting of RBW.（based on CISPR16）

RBW charging

time constant

dis-charging

time constant

meter

time constant

9kHz 1ms 160ms 160ms

120kHz 1ms 550ms 100ms

●

Presetting (Initialization) （ Refer to “18. Save/Load” ）

In MSA338E, the default settings of the radiated disturbance measurement and the conducted disturbance

measurement are added to the preset.

Menu is displayed with pressing

Press [NORM] to preset the setting parameters as the normal initialization.

Press [EMI-C] to preset the setting parameters for the

conducted disturbance measurement.

Press [EMI-R] to preset the setting parameters for the

radiated disturbance measurement.

In the

radiated disturbance

measurement, 【USER】 is selected as an antenna.

It is necessary to input the antenna calibration data beforehand.

SAVE/LOAD

F6

SWEEP

F1

F2

F3

Ｆ４

－49－

20.2 EMI test

Limits of disturbance use QP or AV detection value.

It takes much time to measure the QP or AV detection values.

To save time, measure all band using the peak detection and then measure the QP or AV values of the

frequency where the peak detection values exceed the QP or AV limits.

●

Conducted disturbance at mains ports measurement

Conduction disturbance voltage induced at an AC power terminal of Equipment Under Test (EUT).

LISN* (Line Impedance Stabilization Network) device is needed. The connection is shown in the figure below.

Please refer to the manual of LISN for details of the connection and notes.

*MICRONIX provides the LISN product （MPW201）.

1. Turn on the MSA338E after connection.

2. Press to preset the setting parameters for

the conducted disturbance measurement. The settings are as follows.

Center Frequency :15MHz

Frequency span :50MHz

RBW: :9kHz

VBW :1MHz

Sweep time :3sec

Detection mode :Positive peak mode

3. Confirm that the connections and operations are correct with supplying the power to the EUT and measuring.

4. Press to set the MAX-HOLD count.

Set the count that can catch impulse disturbance, such as "256". It depends on impulse disturbance cycle.

5. Search the frequency where the disturbance exceeds the AV or QP limits using the Marker-Peak-Search function..

6. Set the CENTER-FREQUENCY to the near frequency where the disturbance exceeds the limits,

and set the SPAN to 2MHz and set the SWEEP to 0.1sec. And measure the disturbance frequency accurately.

7. Measure the disturbance with QP or AV detection, SPAN200KHz and SWEEP10sec at the frequency selected in

item-6 .

Power Supply

EUT

MSA338E

SAVE/LOAD

F6

F2

CALC

F2

LISN *

－50－

●

Radiated disturbance measurement

The electric field strength of radio disturbance from the EUT.

1. Set the antenna calibration data beforehand if unsetting.

Refer to " 24.5 Writing original compensation data" for the setting method.

2. Turn on the MSA338E after connection.

3. Press to preset the setting parameters for the radiated

disturbance measurement. The settings are as follows.

Center Frequency :515MHz

Frequency span :1GHz

RBW: :120kHz

VBW :1MHz

Sweep time :0.3sec

Detection mode :Positive peak mode

4. Confirm that the connections and operations are correct with supplying the power to the EUT and measuring.

5. Press to set the MAX-HOLD count.

Set the count that can catch impulse disturbance, such as "256". It depends on impulse disturbance cycle.

6. Search the frequency where the disturbance exceeds the QP limits using the Marker-Peak-Search function..

7. Set the CENTER-FREQUENCY to the near frequency where the disturbance exceeds the limits,

and set the SPAN to 50MHz and set the SWEEP to 30msec. And measure the disturbance frequency accurately.

8. Measure the disturbance with QP detection, SPAN1MHz and SWEEP30sec at the frequency selected in item-7.

MSA338E

EUT

Antenna

SAVE / LOAD

F6

F3

CALC

F2

－51－

EMI standards (selected) (As of June 2005)

Frequency Quasi Peak Average

CISPR22 class A Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 30MHz

79dBuV 73dBuV

66dBuV 60dBuV

CISPR22 class B Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 5MHz 5MHz ～ 30MHz

66～56dBuV 56dBuV 60dBuV

56～46dBuV 46dBuV 50dBuV

Decreasing linearly with the logarithm of the frequency

CISPR22 class A Limits of radiated disturbance

30MHz ～ 230MHz 230MHz ～ 1000MHz

40dBuV/m 47dBuV/m

---

Measurement distance 10 m

CISPR22 class B Limits of radiated disturbance

30MHz ～ 230MHz 230MHz ～ 1000MHz

30dBuV/m 37dBuV/m

---

Measurement distance 10 m

VCCI class A Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 30MHz

79dBuV 73dBuV

66dBuV 60dBuV

VCCI class B Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 5MHz 5MHz ～ 30MHz

66～56dBuV 56dBuV 60dBuV

56～46dBuV 46dBuV 50dBuV

Decreasing linearly with the logarithm of the frequency.

VCCI class A Limits of radiated disturbance

30MHz ～ 230MHz 230MHz ～ 1000MHz

40dBuV/m 47dBuV/m

---

Measurement distance 10 m

VCCI class B Limits of radiated disturbance

30MHz ～ 230MHz 230MHz ～ 1000MHz

30dBuV/m 37dBuV/m

---

Measurement distance 10 m

FCC part15 subpartB class B Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 30MHz

79dBuV 73dBuV

66dBuV 60dBuV

FCC part15 subpartB class A Limits of conducted disturbance at mains ports

0.15MHz ～ 0.50MHz

0.50MHz ～ 5MHz 5MHz ～ 30MHz

66～56dBuV 56dBuV 60dBuV

56～46dBuV 46dBuV 50dBuV

Decreasing linearly with the logarithm of the frequency.

FCC part15 subpartB class B Limits of radiated disturbance

30MHz ～ 88MHz 88MHz ～ 216MHz 216MHz ～ 960MHz 960MHz ～

40dBuV/m

43.5dBuV/m 46dBuV/m 54dBuV/m

---

Measurement distance 3 m

FCC part15 subpartB class A Limits of radiated disturbance

30MHz ～ 88MHz 88MHz ～ 216MHz 216MHz ～ 960MHz 960MHz ～

39dBuV/m

43.5dBuV/m

46.4dBuV/m

49.5dBuV/m

---

Measurement distance 10 m

(Attention) This table is a background information. Micronix is not liable to you for any damages due to the mistake of the content of the description.

–52–

21. Screen Control <DSPL>

Press to switch over to the function screen shown below:

21.1 Adjusting the contrast (*1)

Use to adjust the contrast.

(*1 There is a product to which contrast adjustment is not necessary to perform for component change.

In that case, this menu is not displayed.)

21.2 Switching ON and OFF the LCD backlight

Each time is pressed, the LCD backlight is alternately switched to ON or OFF.

21.3 Adjusting the brightness of the LCD backlight

Use to set the brightness.

21.4 Inverting the display

Press to invert the screen display. Press again to return it to the previous state.

21.5 Enabling or disabling the beep

Pressing allows you to disable the beep that sounds when you operate a key or the encoder. Press again to return it to the previous state.

* If the voltage of a battery becomes low at the time of battery operation, it will be displayed on

a screen as “Low Batt”, and a buzzer will sound (it sounds, even if it is set up so that a buzzer may not sound), and a power supply will be shut off within several minutes.

CTRS

B.L.

BLCTR

INVT

BUZZR

140 ON 200 OFF ON

F2

DSPL

F3

F4

F5

F1

F4

F5

F1

F2

F3

F4

F5

F6

－53－

22. Tracking Generator Mode(MSA338TG)

22.1 Specification for T.G. function

Item Limit

Frequency range 5MHz to 3.3GHz

Output Level

-10dBm±1dB @1GHz(Fixed value)

Output flatness

±1.5dB

Output impedance

50Ω

Output VSWR Less than 2.0

Output connector SMA (J)

22.2 Description of I/O connector

1) Input connector

SMA (J) connector.

Input for an external signal.

Make sure that the total power of all signals at the analyzer input dose not exceeds +23dBm.

2) Output connector

SMA (J) connector.

It is an output terminal of Tracking Generator.

※ Please set to "TG： OFF" to prevent from the influence of the leak from the Tracking Generator in case of disuse

of the T.G. function.

１

２

－54－

22.3 Switching ON and OFF the T.G. function

to switch over to the function screen shown below :

１．

Press to set the T.G.. Mode screen.

２．

Each time is pressed, the T.G.. output is alternately switched to ON or OFF.

If the T.G. output is switched to ON, it will be displayed on a screen as “TG： ON”.

If the T.G. output is switched to OFF, it will be displayed on a screen as “TG： OFF”.

22.4 Normalizing of waveform

NORM ON ：To become smooth at a dotted line position on the screen, the waveform of the input signal is normalized.

１．

t to switch over to the function screen shown similar to the preceding clause.

２．

Press to set the T.G.. Mode screen.

３． Each time

is pressed, the normalizing of waveform is alternately switched to ON or OFF.

If the normalizing of waveform is switched to ON, it will be displayed on a screen as “NORM： ON”.

※ If the following setting changes are done, the normalizing of waveform is automatically turned off. ・The span is expanded. ・The central frequency is changed over the range of the screen.

（When SPAN is changed from FULL SPAN according to the setting of a center frequency, the setting is released.）

・The magnetic field strength measurement or the frequency counter(factory optional) is selected. ・The AUTO tuning is executed. ・The presetting is executed. ・The power supply is turned off.

※ It cannot be normalized that the shape of waves is not displayed at a proper position on the screen

when the setting of the scale is 2dB.

ＳＷＥＥＰＤＥＴ

Ｔ．Ｇ．

ＭＡＮＵＡＵＴＯＡＬＬＰｏｓＰＫ

ＭＯＤＥ

Ｔ．Ｇ．

ＮＯＲＭ

ＯＮＯＮ

ＳＷＥＥＰ

Ｆ６

Ｆ１Ｆ２Ｆ３

Ｆ４

Ｆ５

Ｆ６

Ｆ１Ｆ２Ｆ３

Ｆ４

Ｆ５

Ｆ６

Ｆ１

Ｆ６

Ｆ２

–55–

23. Printing <PRINT> (optional)

When using the optional printer, connect the RS-232C cable MI180 (optional) as shown in the figure below.

23.1 Hard copy of the screen

When you press the with the printer (optional) connected to the unit, it is set to the HOLD

state and starts printing. It remains in the HOLD state after the printing is finished. It stops printing if you

press the again during printing.

Since the printer operates with power supply from either the AC adapter or dry batteries, you can easily

produce a hard copy of measured data even when outdoors where no AC power supply is available.

When battery-powered, the printer operates for approximately 30 minutes (continuous use), allowing you

to produce about 80 hard copies of the screen image.

Printer

MI180

PRINT

(Female)

(Male)

PRINT

–56–

24. Data Output <RS232C>

Press to switch over to the function screen shown below:

*

Refer to “23. RS-232C” for “How to connect” and “RS-232C specifications”

24.1 Selecting the trace to transfer

Use to select a trace.

CURR 00 01 02 03 ··· 98 99

*An asterisk (*) appears when there is a saved trace at the selected number as well as

“SAVE/LOAD”.

* The trace currently displayed on the screen is transmitted when “CURR” is selected.

24.2 Selecting the communication speed (baud rate)

Use to select a baud rate.

2400 4800 9600 19200 38400

24.3 Transfer the data

Press to start the transfer.

The data are transmitted as ASCII cord character strings.

TRACE BAUD

CURR 38400 EXEC

F2

F3

RS232C

F1

F1 F2 F3

F4

F5 F6

–57–

· Contents of data

*“CR(0D[HEX])+LF(0A[HEX])” is added to the tail of every data.

Character strings Description Example

PARAM This means that the data from the next line are “setting parameters”. PARAM

CF **

Center frequency

CF 2.5140G

SP ** Frequency span SP 20M

RF ** Reference level RF 10dBm

ST

**

##

Sweep time and detection mode

ST 30ms SMP

RB **

Resolution bandwidth

RB 300k

VB **

Video bandwidth

VB 1M

SC ** Display scale (**=10dB/d or 2dB/d) SC 10dB/d

TRACE This means that the data from the next line are “trace data”. TRACE

**

,

**

, ···

These are trace data. Ten two-digit hexadecimal characters

separated by commas make a line, and there are 26 lines (251data) of

data in total. For Trace 1001 data transfer, there are 101 lines (1001

data) of data in total.

24, 20, 1f, 1f, 1e, ···

···

23

1: Center frequency

MSA338(E/TG): CF

**

[**=0.0M, 0.1M to 999.9M (0.1step), 0.0001G to 3.3G(0.0001step)]

MSA358: CF

**

[**=0.0M, 0.1M to 999.9M (0.1step), 0.0001G to 8.5G(0.0001step)]

2: Frequency span

MSA338(E/TG):

SP

**[**

=ZERO,200k,500k,1M,2M,5M,10M,20M,50M,100M,200M,500M,1G,2G,FULL]

MSA358

: SP

**

[

**

=ZERO, 200k, 500k, 1M, 2M, 5M, 10M, 20M, 50M, 100M, 200M, 500M, 1G, 2G, 5G, FULL]

3: Reference level

RF

**

[**=-60 to 10dBm, 47 to 117dBμV, -13 to 57dBmV, -73 to -3dBv,

72 to 149dBμV/m, 89 to 203dBμA/m (all 1step)]

4: Sweep time and Detection mode

ST

**

## [**=10ms, 30ms, 0.1s, 0.3s, 1s, 3s, 10s, 30s]

[##=POS, NEG, SMP]

5: Resolution bandwidth

MSA338(TG)/358: RB

**

[**=3k, 10k, 30k, 100k, 300k, 1M, 3M]

MSA338E: RB ** [**=3k, 9k, 30k, 120k, 300k, 1M, 3M]

6: Video bandwidth

VB

**

[**=100, 300, 1k, 3k, 10k, 30k, 100k, 300k, 1M]

Refer to 1

Refer to 2

Refer to 3

Refer to 4

Refer to 5

Refer to 6

–58–

25. RS-232C Interface

25.1 RS-232C specifications

·Transfer rate

·Date bit length

·Stop bit

·Parity check

25.2 How to connect

25.3 Command description

* “CR(0D[HEX])+ LF(0A[HEX])” is added to the tail of every command. When you send a command

from your PC, MSA338(E/TG)/MSA358 returns a response. Responses include “OK” + CR + LF, “ERR” + CR + LF and “(response to command)” + CR + LF.

*By inputting “?” instead of “**” for each command, the current setting parameters are returned.

Except for “····Request” command and command for inputting corrected data.

MI180

COM PORT (D-sub 9pin, male)

*Use the conversion connector, in the case

that is D-sub 25pin (male)

(

Male)

(Female)

When using the RS-232C interface, connect the RS-

232C cable MI180 (optional) as shown in the

figure below.

* RS-232C interface cable MI180 specifications · · · Cable length: approx. 1.5m

Connector: D-sub 9pin male / D-sub 9pin female Wiring: straight

* Refer to “23. Data Output” about changing baud rate.

: 2400/4800/9600/19200/38400bps : 8bit : 1bit : none

–59–

1) Set the center frequency

Command: FREQ

*******

(

*******

=Refer to [25.4 Input the frequency])

2) Request the set marker

Command: FREQSETMKR

3) Set the span

MSA338(E/TG): Command: SPAN

****

(

****

=ZERO, 200K, 500K, 1M, 2M, 5M, 10M, 20M, 50M, 100M,500M, 1G, 2G, FULL[unit: Hz])

MSA358: Command: SPAN

****

(

****

=ZERO, 200K, 500K, 1M, 2M, 5M, 10M, 20M, 50M, 100M,500M, 1G, 2G, 5G, FULL[unit: Hz])

4) Set the reference level

Command: REF

***

(

***

=-60 to 10[1step, unit: dBm])

5) Set the reference unit

Command: UNIT

***

(

***

=DBM, DBVU, DBMV, DBV)

6) Set the RBW

Command: RBW

****

MSA338(TG)/358 (

****

=3K, 10K, 30K, 100K, 300K, 1M, 3M, AUTO, ALL[unit: Hz])

MSA338E (

****

=3K, 9K, 30K, 120K, 300K, 1M, 3M, AUTO, ALL[unit: Hz])

7) Set the VBW

Command: VBW

****

(

****

=100, 300, 1K, 3K, 10K, 30K, 100K, 300K, 1M AUTO, ALL[unit: Hz])

8) Start/Stop the measuring function

Command: MEAS

***

(

***

=CP, ACP, OBW,

EF, MF, FC, OFF)

9) Request the result of measuring function

Command: MEASRES

*Example of the return data

Case of channel power measurement··· POW: -25.5dBm

Case of adjacent channel power measurement··· L: -44.7dBc U: -48.3dBc

Case of occupied bandwidth measurement··· C: 1.45G W: 20.00k

Case of frequency counter··· FC:2400.0000M

* When the level of spectrum is small and cannot measure, it is returned as “Non signal”.

* If frequency counter (factory option) is not mounting, it is returned as “Invalid for F/C”.

Command

Measuring function

CP Channel power measurement

ACP Adjacent channel leakage power measurement

OBW Occupied frequency bandwidth measurement

EF Electric field strangth measurement

MF Magnetic field strangth measurement

FC Frequency counter (factory option)

OFF OFF

Command Unit

DBM dBm

DBUV dBμV

DBMV dBmV

DBV dBV

*The center frequency is set according to the frequency of

current marker position.

*For units other than dBm, use the conversion

formulas in “9.3 Refference level setting range

for each unit” to convert them into dBm

before inputting the value.

–60–

10) Set the mode of channel power measurement

Command: CPMODE

*****

(

*****

=TOTAL. BAND)

11) Set the zone center frequency of channel power measurement

Command: CPCNTR

*******

(

*******

=Refer to [25.4 Input the frequency])

12)

Set the zone width of channel power measurement

Command: CPWIDTH

*******

(

*******

=Refer to [25.4 Input the frequency])

13) Set the mode of adjacent channel power mesurement

Command: ACPMODE

*****

(

*****

=TOTAL, REF, PEAK)

14) Set the band offset of adjacent channel power mesurement

Command: ACPOFS

*******

(

*******

=Refer to [25.4 Input the frequency])

15) Set the bandwidth of adjacent channel power mesurement

Command: ACPCHBW

*******

(

*******

=Refer to [25.4 Input the frequency])

16) Set the reference band center frequency of adjacent channel power mesurement

Command: ACPREF

*******

(

*******

=Refer to [25.4 Input the frequency])

17) Set the reference bandwidth of adjacent channel power measurement

Command: ACPREFBW

*******

(

*******

=Refer to [25.4 Input the frequency])

18) Set the mode of occupied bandwidth measurement

Command: OBWMODE**

(**=N%, DB)

19) Set the N% ratio of occupied bandwidth mesurement

Command: OBWRATIO

***

(

***

=80.0 to 99.9[0.1step, unit: %])

20) Set the XdB down of occupied bandwidth mesurement

Command: OBWDB

***

(

***

=0.1 to 40.0[0.1step, unit: dB])

Command

Mode

TOTAL Measure the power of whole range on the screen

BAND Measure the power within zone set

Command Mode

TOTAL TOTAL(total power method)

BAND BAND(in-band method)

PEAK PEAK(reference level method)

Command Mode

N% N% POWER mode

DB XdB DOWN mode

–61–

21) Set the antenna of electric field strength measurement

Command: EFANT

****

(

****

=M301, M302, M303, M304, M305,M306,

USER)

22)

Transfer the user-compensation data of electric field strength measurement

Command: EFUSER

*****

Example of the compensation data:

*****

=2.25G:2.08DBI,···2.65G:3.5DBI

*If the compensation coefficient is -0.3dBi at 2.5GHz, the compensation data is “2.5G:-0.3DBI”

Set apart by “,” between data and input from lower frequency. 10data are available.

23) Set the probe of magnetic field strength measurement

Command: MFPROBE

****

(

****

=CP2S, USER)

24) Transfer the user-compensation date for magnetic field strength measurement

Command: MFUSER

*****

Example of the compensation data:

*****

=10M:86.7DB, 100M:69.2DB,···3G:40dB

*If the compensation coefficient is 86.7dB at 10MHz, the compensation data is “10M:86.7DB”

Set apart by “,” between data and input from lower frequency. 10data are available.

25) Start/Stop Calculation

Command: CALC

***

(

***

=OFF, MAX, MIN, AVE, OVR)

26) Set the number of MAX HOLD

Command: MAXNO

****

(

****

=2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 0) * Command: 0 = unlimited

27) Set the number of MIN HOLD

Command: MINNO

****

(

****

=2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 0) * Command: 0 = unlimited

28) Set the number of AVERAGE

Command: AVENO

***

(

***

=2, 4, 8, 16, 32, 64, 128, 256)

29) Set the display scale of amplitude axis

Command: SCALE** (**=2, 10)

Command

Antenna

M301 Setting data for M301

M302 Setting data for M302

M303 Setting data for M303

M304 Setting data for M304

M305 Setting data for M305

M306 Setting data for M306

USER Setting date for user’s original antenna

Command

Probe

CP2S Setting data for CP-2S

USER Setting data for user’s original probe

Command Display scale

2 2dB/div

10 10dB/div

Command

Calculation

OFF OFF

MAX MAX HOLD

MIN MIN HOLD

AVE AVERAGE

OVR OVER WRITE

–62–

30) Set the sweep time

Command: SWEEP

****

(

****

=10M, 30M, 0.1S, 0.3S, 1S, 3S, 10S, 30S, AUTO, ALL)

31) Set the detection mode

Command: DET

***

(

***

=POS, NEG, SMP)

32) Request the AUTOTUNE

Command: AUTO

*Returns the response after tuning.

33) Request the action

Command: HOLD/RUN

34) Request the marker information

Command: MKRRES

*Example of returned data: 1.42G -15dBm

35) Set the marker mode

Command: MKR

*****

(

*****

=NORM, DELTA)

36) Set the marker position

Command: NORMMKR

*******

(

*******

=Refer to [24.4 Input the frequency])

37) Set the peak search mode

Command: PEAK

****

(

****

=NORM, ZONE)

38) Request the peak search

Command: PKSEARCH**

(**=01, 02, 03, 04, 05, 06, 07, 08, 09, 10, 11)

39) Set the zone center frequency of peak search

Command: PKCNTR

*******

(

*******

=Refer to [25.4 Input the frequency])

Command

Sweep time

10M 10ms

30M 30ms

0.1S 0.1s

0.3S 0.3s

1S 1s

Command

Sweep time

3S 3s

10S 10s

30S 30s

AUTO AUTO

ALL ALL AUTO

Command

Detection mode

POS Positive peak mode

NEG Negative peak mode

SMP Sample mode

Command Marker mode

NORM, Normal marker

DELTA Delta marker

Command

Peak search mode

NORM Normal peak search

ZONE Zone peak search

Command Position to where the marker moves

01

Position of the maximum peak

on the screen

02

Position of the 2nd highest peak

on the screen

···

11

Position of the 11th highest peak

on the screen

–63–

40) Set the zone width of peak search

Command: PKWIDTH

*******

(

*******

=Refer to [25.4 Input the frequency])

41) Set the unit of marker

Command: CONV

***

(

***

=DBM, M, DBV, V, DBUVM, VM)

42) Request the transfer of hard copy

Command: PRT

*When transferring the returned data to optional printer, hard copy is performed．

43) Request to transfer trace

Command: SRS

****

(

****

=CURR, 00 to 99)

44) Request to transfer 1001 date of trace

Command: SRSF Decimal data

SRSHF 4bit Hexadecimal data (Refer to “24.3 Transfer the data” about returned data.)

45) Request the preset

Command: PRESET

46) Set the remote control

Command: REMOTE

***

(

***

=ON, OFF)

47) Single sweep

Command: CAPT

* It sweeps only once and will be in a HOLD state.

48) Setting of the offset level

Command: OFFSET

****

(

****

=-50.0 to 50.0 [0.1step, unit:dB])

49) Setting the input impedance

Command: IMP**

(**=50, 75)

* When selecting of “75Ω”, please attach the coaxial connector (impedance converter) MA301 (optional)

to an input connector.

Command

Unit of marker

DBM dBm

W W

DBV dBV

V V

DBUVM dBμV/m

VM V/m

Command Trace that is transferd

CURR Trace of Current

00 Trace of save data 1

··· ···

99 Trace of save data 100

Command

Remote control

ON

Any operation from the keys or the encoder of the main body will not be accepted. Control the unit with RS-232C commands.

OFF

The operation from the keys or the encoder of the main body and RS-232C commands will be accepted.

* When remote control is ON, “REMOTE”

is displayed in the operating information

display area on the LCD screen.

(Refer to “4. Description Of Screen” for details)

Command

Offset level

50 Offset level is set to 0dB.

75 Offset level is set to 5.7dB.

–64–

50) Clearing of saved trace-data and parameter

Command: MCLR

***

(

***

=WALL, SALL, W00 to W99, S00 to S99)

51) Request save of setting parameter

Command: SVST

* return command：OK

25.4 Input the frequency

For the items written (

*******

=Refer to [25.4 Input the frequency]) in [25.3 Command description]

above, enter a frequency as follows.

*******

=0.0k to 999.9k[0.1step, unit: Hz]

0.0M to 999.9M[0.1step, unit: Hz] MSA338(E/TG): 0.0000G to 3.3G[0.0001step, unit: Hz] MSA358

:

0.0000G to 8.5G[0.0001step, unit: Hz]

* However, the offset frequency and zone width can be input only in the range decided by the center

frequency and frequency span. The value out of the range becomes error.

* Values of the offset frequency and the zone width will change as you alter the frequency span.

25.5 Writing of original compensation data

On the case of electric field strength measurement used the antenna prepared by the user, or, on the case of magnetic field strength measurement used the magnetic field probe prepared by the user, it is necessary to write the data of the antenna gain or the magnetic probe field compensation coefficient to MSA338(E/TG)/MSA358 main unit. Please write the antenna gain or the magnetic probe field compensation coefficient according to the following description. There are two kinds of methods, “method 1: use PC software MAS300 (optional)” and “method 2: use communication program which is prepared by user”.

1) Preparation things

· RS-232C interface cable MI180

· Windows® PC (with RS-232C interface) * It is not writable with MSA338/MSA358 main unit only.

· PC software MAS300 (case of “Method 1 of writing data”)

2) Write-in data

As example, the compensation data (antenna gain) of antenna M305 and the compensation data (compensation coefficient) of magnetic field probe CP-2S are shown below.

· Compensation data (antenna gain) of antenna M305.

Frequency 300MHz 350MHz 400MHz 450MHz 500MHz

Antenna gain 0.0dBi 1.0dBi 1.4dBi 1.4dBi 0.0dBi

· Compensation data (compensation coefficient) of magnetic field probe CP-2S.

Frequency 10MHz 100MHz

1GHz 2GHz 3GHz

Compensation coefficient 86.7dB 69.2dB 50.7dB 44.9dB 40.1dB

Command

Clearing data

WALL All of saved trace-data

SALL All of saved-parameter

W00 Trace-data of save-No. 00

··· ···

W99 Trace-data of save-No. 99

S00 Parameter of save-No. 00

··· ···

S99 Parameter of save-No. 99

–65–

* Here, although the number of data is five points, it is possible to write even the data of

maximum of ten points. Data cannot be written in 0Hz.

3) Method 1 of writing data

The method which used the optional PC software MAS300.

* Please use MAS300 of the version more than 1.03b.

The software can be updated from our website.

1. Write the antenna gain to text file.

Please create a new text file by new creation of a personal computer, and open by the text editor.

· Format “Frequency”:“Antenna gain”,“Frequency”:“Antenna gain”,“Frequency”:“Antenna gain”, ···

Example) case of M305

300M:0.0DBI,350M:1.0DBI,400M:1.4DBI,450M:1.4DBI,500M:0.0DBI

* Please write unit with a capital letter. Moreover, Frequency can also use G (GHz).

2. It writes in by PC software MAS300.

Connect the personal computer to MSA338(E/TG)/MSA358 by MI180. Turn on the power of MSA338(E/TG)/MSA358. Start the PC software MAS300. Please set the same baud rate of MSA338(E/TG)/MSA358 and MAS300. (Refer to “24. Data Output” for details)

On the case of electric field strength measurement, please choose [File]

→

[Write E/F User Data], on the case of magnetic field strength measurement, please choose [File] → [Write M/F User Data], from the upper menu of software, and select the text file which made some time ago. Then, data is written.

4) Method 2 of writing data

It is method of writing in which does not use MAS300. A user needs to prepare communication program.

1. Prepare the RS-232C communication software.

Connect the personal computer to MSA338(E/TG)/MSA358 by MI180. Turn on the power of

MSA338(E/TG)/MSA358.Start the RS-232C communication software. Please set the same baud rate of MSA338(E/TG)/MSA358 and software, and unite the setting of communication. (Refer to “24. Data Output” for details.)

2. Write the data

Please transmit data of the following format to MSA338(E/TG)/MSA358 from RS-232C communic

a t i o n

software.

· Format Case of compensation data of electric field strength measurement.

EFUSER“Frequency”:“Antenna gain”,“Frequency”:“Antenna gain”, ···

–66–

Case of compensation data of magnetic field strength measurement.

MFUSER“Frequency”:“Compensation coefficient”,“Frequency”:“Compensation coefficient”, ···

Example) case of CP-2S

MFUSER10M:86.7DB,100M:69.2DB,1G:50.7DB,2G:44.9DB,3G:40.1DB

* Please write unit with a capital letter.

3. After writing is completed correctly, “OK” is returned from MSA338(E/TG)/MSA358.

5) How to use

1. Please set the measuring function of MSA338(E/TG)/MSA358 to electric field strength

measurement mode or magnetic field strength measurement mode.

On the case of electric field strength measurement, please select [MEAS] → [E/F ANT], on the case of magnetic field strength measurement, please select [MEAS] → [M/F PROBE], Please push [F1] and display [USER] on the upper of [F1]. Now, electric field strength measurement or magnetic field strength measurement by the written compensation data can be performed.

* When the power supply of MSA338(E/TG)/MSA358 is turned off at once and turned on again

it returns from electric field strength measurement mode or magnetic field strength measurement mode to the usual measurement mode. Then if it goes into electric field measurement mode or magnetic field strength measurement mode once again, it can measure in the same state.

6) About the antenna gain

In this contents, the antenna gain is meaning absolute gain [dBi]. When antenna gain is relative gain, it can change into absolute gain by adding +2.15dB.

· Absolute gain [dBi] = Relative gain [dBd] + 2.15dB

As reference, the conversion formula to electric field strength is using the following.

· E=√ (480π2 × Pa ÷ (Ga × λ2)

E: Electric field strength [V/m] Pa: Received electric power [W] Ga: Antenna gain [times] = 10

(antenna gain [dBi] ÷ 10)

λ: Wavelength [m] = (3 × 108) ÷ frequency [Hz]

25.6 Sample program

An example program to send following setting with RS-232C is shown below:

Setting: Center frequency 1GHz

10 ‘ ‘FREQ SETTING

20 OPEN “COM1:N81N” AS #1

30 PRINT #1 “FREQ1G”; ‘”FREQ1G” OUTPUT

40 INPUT #1 A$ ‘”OK” READ

50 CLOSE #1

–67–

26. PC Software (optional)

This is the software MAS300 that controls MSA338(E/TG)/MSA358 by RS-232C. All setting can be

performed from PC. Although the 251 points of trace data is displayed on horizontal axis in the screen

of the MSA338(E/TG)/MSA358,1001 points of trace data are taken per sweep. When this software is

used, all of these 1001 points data are transformed to a PC and trace is displayed at high resolution.

Corresponding OS

Hardware Requirements

Computer that is able to act normally Windows®, and able to use the COM port and CD-ROM

drive.

Screen size 1024x768 or more computers.

Operating system

Windows® 2000/Me/NT 4.0/XP/Vista/7

Communication method

Bidirectional communication by RS-232C.

Installation procedure

1. Start windows®.

2. Insert the MAS300 software CD into the CD-ROM drive.

The setup will start automatically and the initial screen will appear.

3. Follow the instructions on the screen.

* If the setup does not start,

1. Double-click on the My Computer icon.

2. Double-click on the CD-ROM icon.

3. Double-click on “setup.exe”.

4. Follow the instructions on the screen.

Refer to the “README” in the MAS300 for details.

* Please inquire of our sales agent about the update of software.

–68–

27. Basis Performance Test (MSA338(E/TG)/358)

To keep the quality of the unit, regular performance testing is recommended. This section describes a method and specification of basic performance testing. If a problem is found in the results of basic performance testing, or formal testing is needed, please contact the dealership where you purchased the product, or contact us.

[Connection diagram]

27.1 Frequency characteristics

Adjust the output level of the spectrum analyzer calibration unit (thereafter, “calibration unit”) so that the displayed power value is -15dBm at each frequency for this unit, and measure the absolute value with a receiver for calibration (microwave power meter, etc.).

Setting of MSA338(E/TG)/358

Specifications

Measurement value

Judgment

Center

frequency

Frequency

span

RBW

10MHz

3MHz

Within Reference±2.0dB±1dot

100MHz

10MHz

3MHz

Reference

1GHz

10MHz

3MHz

Within Reference±1.0dB±1dot

2GHz

10MHz

3MHz

Within Reference±1.0dB±1dot

3.3GHz

10MHz

3MHz

Within Reference±1.0dB±1dot

6.2GHz *1

10MHz

3MHz

Within Reference±1.0dB±1dot

8.5GHz *1

10MHz

3MHz

Within Reference±1.0dB±1dot

*1 MSA358 only

· Setting of MSA338(E/TG)/358 · Setting of calibration unit

Reference level

:

-15dBm

Frequency

:

Same as a center frequency of

VBW

:

1MHz

MSA338(E/TG)/358.

Sweep time

:

1s

Detection mode

:

SMPL

Output power

:

Adjust the power indication of MSA338(E/TG)/358 to -15dBm.

Display scale

:

2dB/div

Spectrum analyzer calibration unit

MSA338(E/TG)/358

Receiver for calibration

–69–

27.2 Accuracy of reference level

Adjust the output level of the calibration unit so that the displayed value of this unit is the 0th div from the top, and calibrate the absolute value with the receiver for calibration (microwave power meter, etc.).

Setting of MSA338(E/TG)/358

Specifications

Measurement value

Judgment

Reference level

+10dBm

within ±1.4dB±1dot

0dBm

within ±1.4dB±1dot

-10dBm

within ±1.4dB±1dot

-15dBm

within ±0.8dB±１dot

-20dBm

within ±1.4dB±1dot

-30dBm

within ±1.4dB±1dot

-40dBm

within ±1.4dB±1dot

* Input attenuator switching error is included at the reference level other than -15dBm.

· Setting of MSA338(E/TG)/358 · Setting of calibration unit

Center frequency

:

100MHz

Frequency

:

100MHz

Frequency span

:

10MHz

Output power

:

Adjust it so that the indicated

RBW

:

3MHz

value of MSA338(E/TG)/358 is

VBW

:

1MHz

at the 0th div from the top.

Sweep time

:

1s

Detection mode

:

SMPL

Display scale

:

2dB/div

27.3 The display accuracy of the center frequency

Measure the frequency with the peak search function of MSA338(E/TG)/358.

Setting of MSA338(E/TG)/358

Specifications

Measurement

value

Judgment Center frequency

Frequency span

RBW

100MHz

200kHz

3kHz

within ±50kHz±1dot

±4kHz

100MHz

10MHz

30kHz

100MHz

20MHz

100kHz

within ±360kHz±1dot

±RBW×20%

100MHz

200MHz

100kHz

1GHz

20MHz

100kHz

2GHz

20MHz

100kHz

3.3GHz *1

20MHz

100kHz

6.1GHz *2

20MHz

100kHz

8.5GHz *2

20MHz

100kHz

*1 MSA338(E/TG) only *2 MSA358 only

· Setting of MSA338(E/TG)/358 · Setting of calibration unit

Reference level

:

-15dBm

Frequency

:

Same as a center frequency of MSA338(E/TG)/358.

VBW

:

AUTO

Sweep time

:

1s Output power

:

-15dBm

Detection mode

:

SMPL

* However, calibrate the signal generator

in advance.

Display scale

:

10dB/div

–70–

27.4 The display accuracy of the frequency span

Adjust the frequency of the calibration equipment so that the peaks are at the positions of f1 and f9, and

measure the frequencies of f1 and f9. Calculate from f1 and f9 the display accuracy of the frequency span.

*1 MSA338(E/TG) only *2 MSA358 only

· Setting of MSA338(E/TG)/358 · Setting of calibration unit

Reference level

:

-15dBm

Frequency

:

Adjust it to the positions of f1

VBW

:

AUTO

and f9.

Sweep time

:

One step slower than AUTO

Output power

:

-15dBm

Detection mode

:

SMPL

Display scale

:

10dB/div

27.5 Linearity of the amplitude axis

Adjust the level of the calibration unit so that the peak is at the top of the amplitude axis (0th div), and regard the point set at that time as the reference. Gradually lower the output, starting from the reference, and measure the amplitude value of MSA338(E/TG)/358.

Setting of MSA338(E/TG)/358

Output of calibration unit

Specifications

Measurement

value

Judgment

Display scales

10dB/div

XdBm (adjust it to the 0th div)

Reference(-15dBm)

(-15dBm)

X-10dBm

Within -25dBm±0.8dB±1dot

X-70dBm

Within -85dBm±1.6dB±1dot

2dB/div

XdBm (adjust it to the 0th div)

Reference(-15dBm)

(-15dBm)

X-2dB

Within -17dBm ±0.2dB±1dot

X-10dB

Within -25dBm±0.8dB±1dot

· Setting of MSA338(E/TG)/358 · Setting of calibration unit

Center frequency

:

100MHz

Frequency

:

100MHz

Frequency span

:

200kHz

RBW

:

30kHz

VBW

:

300Hz

Sweep time

:

0.3s

Detection mode

POS

Setting of MSA338(E/TG)/358

Specifications

f

1

Measurement

value

f

9

Measurement

value

(f9 - f1)

Judgment

Frequency span

Center

Frequency

RBW

200kHz

1GHz

3kHz

within ±160kHz ×3%±1dot

10MHz

1GHz

100kHz

within ±8MHz ×3%±1dot

20MHz

1GHz

300kHz

within ±16MHz ×3%±1dot

200MHz

1GHz

3MHz

within ±160MHz ×3%±1dot

500MHz

1GHz

3MHz

within ±400MHz ×3%±1dot

2GHz

1GHz

3MHz

within ±1.6GHz ×3%±1dot

FULL(3.3GHz)*1

1.65GHz

3MHz

within ±2.64GHz ×3%±1dot

2GHz *2

4.8GHz

3MHz

within ±1.6GHz ×3%±1dot

2GHz *2

7.4GHz

3MHz

within ±1.6GHz ×3%±1dot

FULL(8.5GHz)*2

4.25GHz

3MHz

within ±6.8kHz ×3%±1dot

* f1: 1st div from the left on the trace screen f9: 9th div from the left on the trace screen

MICRONIX CORPORATION

2987-2, KOBIKI-CHO, HACHIOJI-SHI, TOKYO 193-0934 JAPAN TEL. +81-426-37-3667 FAX. +81-426-37-0227 URL: http://www.micronix-jp.com/

Micronix MSA338, MSA338E, MSA338TG, MSA358 Operating Manual

Specifications and Main Features

Frequently Asked Questions

User Manual