Mut.59.1.11.Satb.b (User Manual Insite Free)

7/27/2019 Mut.59.1.11.Satb.b (User Manual Insite Free)

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MUT.59.1.11.SATB.B

Table of Content

1

GETTING STARTED 4

1.1 Install the software 41.2 Define hardware configuration 51.3 Define software options 71.4 Define frequency bands 81.5 Define measurement parameters 111.6 Define channels and carriers 13

1.6.1 Define channels 131.6.2 Define carriers 14

1.7 Define channel width 141.8 Choose the attenuation mode 14

2 STARTING A MEASUREMENT 152.1 Launch a measurement 152.2 Visualize data 15

3 ANALYSIS/REMEASUREMENT 173.1 Analysis in peaks mode 183.2 Analysis in BCCH mode 203.3 Re-measure in UMTS mode 213.4 Additional functions for re-measurements 24

4 INSITE Frees LEXICON 26


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INSITE Free User manual

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The INSITE Free software has been developped to perform selective RF

measurements and to analyse measurements results with the adapted

method, depending on the nature of the signal.

1 GETTING STARTED

1.1 Install the software

Before installing the software, check first the PC answers the followinghardware requirements

Insert the software CD-ROM into the CD drive. Go to the folder andlaunch the application named setup.exe. Then, follow the instructions

displayed on the screen. The INSITE Free software is ready to start

When opening the software, the following main window appears:

HARDWARE REQUIREMENTS

PC Pentium 500 MHzCable link USB Port

Operating system XP / WIN7

Memory 1GB RAM

Free space 200 MB free space on hard disc

Spectrum analyser Serial Port, Ethernet or GPIB

Application Microsoft Excel / OpenOffice Calc


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STEP 2: Choose UMTS scanner

Choose the UMTS scanner on the list Choose the port communication Click on check to verify that the communication is working

STEP 3: choose GPS

Choose the GPS device on the list Choose the port communication Click on check to verify that the communication is working

Antennessa supplies the probe, cable and switch and their corresponding

calibration files for the INSITE Free software. Calibration files are ASCII files

containing rows of data separated by tabulations.

Example:

0.1 0.002 0.002 0.003

0.15 0.003 0.002 0.003

0.2 0.003 0.004 0.003

...

The first column contains the frequency in MHz.

The next three columns contain the antenna factor of the probe or loss in dB

of the cable for the selected way (the gain of each device is calculated using

an affine function between the measured points).

The switch has a somehow particular file, because it contains 7 columns for

the lowest frequencies (below 30 MHz). The column 2, 3 and 4 correspond to

the loss without amplifier and the three last ones to the gain of the amplifier.

STEP 4: Choose the probe

Click on select probe and browse to select the calibration file (.probe)STEP 5: Choose cable

Click on select cable and browse to select the calibration file (. cable)STEP 6: Choose switch box

Click on select switch and browse to select the calibration file (switch)


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Click on check to verify that the communication is working1.3 Define software options

In the main window, go to edit and select software configuration, the

following window will appear:

Figure 3: Software configuration window

The measurement results can be exported in an Excel or OpenOfficeCalc file. These results are presented compared to an exposure limit. To

choose the applying recommandation, click in the corresponding box.

The Custom standard recommendation permits to apply your own threshold recommandation, from a text file under the Standard


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directory. It contains two columns. The first one corresponds to the

frequency in MHz. The second one corresponds to the standard level in

V/m. The two columns are separated by one tabulation. The extension

file is.std.

Choose the maximum number of scan to be made per band, the type ofscan for the first measure as well as the automatic peaks selection.

Restrict users rights Click on save and exit to validate

Note 1: If one and only one report application (Excel / OpenOffice Cac) is

installed on your PC, the Application Selection control is not displayed.

1.4 Define frequency bands

In the main window, go to the edit menu and select frequency bands. This

window is made of three parts:

Default band: for pre-defined band list.

Measurement scenario: to select the bands to be measured.

Select band information, to choose measurement parameters for each

band.

STEP 1: load default band list

Select load default bands list, a pop up window will appear with aselection of files. A default list of frequency bands are available, like for

instance the france.def file.

Note 2: The default files are XML files. The files are usually named with the

country name (e.g. france.def or uk.def).

Select one .def file in the scenarii subdirectory, the following windowwill appear:


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Figure 4: Frequency band configuration window

Note 3: The file path will be automatically saved and do not need to be

specified again.

STEP 2: Select frequency band(s) to be measured

In the default window are listed the available frequency bands.

Click on the wanted band(s), the following sign will appear at thebottom of the window: >>

To select all the bands of the list, click on select all at the bottom ofthe window

Click on the >> sign, the selected band(s) will appear in themeasurement scenario list

STEP 3: Remove frequency band(s) to be measured

To remove a band, select it in the measurement scenario list, thefollowing sign will appear at the bottom of the window:


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Click on the


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1.5 Define measurement parameters

The measurement parameters can be defined in the selected band

information window. This window becomes available, after clicking on a band

in the measurement scenario list.

Figure 5: Selected band information

Three types of post measurement analysis of the acquired data are available:

Standard (peaks) analysis: allows to select peaks and calculate thetotal field by adding the selected peaks

BCCH Analysis: select some of the channels (this is done for a GSM orDCS band) that are BCCH (Broadcast Control Channels), re-measure

them (if necessary) and associate them with a Trx. For each BCCH the

field is then extrapolated by multiplying the field level by the square

root of the Trx Number. The total field is processed by adding theselected extrapolated BCCH values


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UMTS Analysis: when using an UMTS scanner, the scanner will dosome measurements on some specified carriers, extract the scrambling

codes and then extrapolate the maximum level

Note 5: The Level for automatic peaks selection (V/m) can be modified

only if the Standard (peaks) analysis is selected. By default the level

corresponds to the selected recommendation in the software configuration.

This default level can be adjusted to a level just above the noise level for an

automatic selection of the significant peaks.

The Detection Mode and Measurement Mode can be selected. If the Max

Hold, Min Hold or Average measurement modes are selected, the

Temporal Measurement check box is displayed.

Note 6: If Temporal Measurement check box is checked, duration in

seconds must be filled. In this case, the three axes are scanned

successively, during the indicated time. Then, the max, min or average field is

calculated according to the selected measurement mode.

Note 7: If the Temporal Measurement check box is not checked, in case ofMax Hold or Min Hold measurement mode selection, the duration in seconds

must be filled. This duration corresponds here to the duration of the scan for

each axis. IfAverage measurement mode is selected, the number of samples

must be filled. In the same way, this one is applied for each axis.

Note 8: The Level for automatic peaks selection (V/m) can be modified

only if the Standard (peaks) analysis is selected. By default the level

corresponds to the selected recommendation in the software configuration.

This default level can be adjusted to a level just above the noise level for an

automatic selection of the significant peaks.

Note 9: By default the most appropriate RBw/VBw available is chosen. Click

in the Select RBw/VBw manually box, to choose another one.


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1.6 Define channels and carriers

The channels function is available for the Standard (Peaks) and BCCH analysis

modes.

The carriers function is available for the Standard (Peaks) and UMTS analysis

modes.

1.6.1 Define channels

In the frequency bands configuration window, go to the edit menu and

select define channels, the following window will appear:

Figure 6: Channels definition window

First channel freq: to select the centre frequency of the firstchannel in the band

First channel number: this number will be associated with the firstchannel; the next ones will be numbered by adding 1, 2, and 3 to

this number

Channel width : this is the bandwidth that will separate twoconsecutive channels. The chosen channel width will pre-define

automatically the filter span used for peaks calculation.

Number of channels: total number of channels in the band: acontrol will be done to check that no channel is outside the bands

limits.


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1.6.2 Define carriers

In the frequency bands configuration window, go to the edit menu and

select define carriers, the following window will appear:

Figure 7: Define carriers window

Up to 20 carriers can be defined. In the re-measure screen, the carriers

names will be displayed on the X axis instead of frequencies. In the peaks

analysis mode, the peaks will be selected within the chosen carrier(s), if the

level is above the defined threshold level.

1.7 Define channel width

The channel width represents the bandwidth occupied by every sender in the

band.

This information is used to determine the appropriate RBw and VBw and to

check the quality of the measure. A minimum knowledge on the band is

necessary to define its width.

For example, it will be of 200 KHz in GSM but may rise to 8 MHz in TV.

1.8 Choose the attenuation mode

The following mode of attenuation are available:

Maximum found on full scan: a first scan will be done for every session,

the attenuation will be then defined depending on the maximum level found.

This mode is recommended when little information on the scanned zone are

available.


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Attenuation checked on selected bands: a first scan will be done on

every band defined in the scenario; this mode is recommended when a few

bands only are scanned and the measurements are made close to a

transmitter (frequency and types already known).

Constant attenuation: the attenuation is constant and selected manually.

This mode is recommended to perform many measurements in a restricted

area, far from any transmitter.

2 STARTING A MEASUREMENT

2.1 Launch a measurement

In the main window, go to measurement and select launch measurement

scenario.

The software will then perform the measurement of all the bands defined in

the scenario, starting from the lowest one.

If the attenuation is not constant, there will be a first scan to determine the

good value for it.

When some bands are in the amplified zone, there will be another scan to

check if the amplification can be used without any damage of the acquired

data.

2.2 Visualize data

To visualize data, go to the file menu in the main software window and

select open a session.


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Figure 8: Data visualization window for all chosen frequency

bands

Standard Limit visualization

The View Standard Limit permits the visualization of a black line

corresponding to the selectected threshold recommendation.

Zoom in/out

Zoom in: drag an drop rightwards Zoom out: drag and drop leftwards

Figure 9: Zoom in Change display unit


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The menu at the bottom left of the window allows to change the display unit.

The available choices are:

- dBV/m- V/m- A/m- W/m2- mW/cm2

Change visualization mode

Right from the display unit bottom, a menu allows to change the type of scale

for the frequency axis. The available choices are:

- Linear scale: make high bands visualization easier.

- Logarithmic scale: make low bands visualization easier.

- Distributed: all bands occupy the same width.

Viewing elements properties

Keep the mouse over a band areafor a few second to view the name ofthe band

Right click on the band cursor to view the element information andmodify the analysis mode or the curve's colour.

Auto peaks selection: if you have checked the Automatic peaks

selection case in Software configuration, the Auto peaks selection button

is visible. Click on it to select the peaks automatically according to the leveldefined for the band.

Save a session: go to the file menu and select save session as. The

session will be automatically saved in the session directory of the program.

The sessions are saved as XML files (.ins file). XML is a standard of file syntax

that is inspired by HTML and permits to save structured ASCII data.

3 ANALYSIS/REMEASUREMENT

The analysis mode has been chosen, when defining the frequency band to be

measured. To access the analysis window, left click on the selected band in

the main data visualization window for all chosen frequency bands.


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3.1 Analysis in peaks mode

STEP 1: Define peaks (without channels or carriers)

A peak can be defined in relation with a defined threshold and filter span:

The level on this point is higher than the threshold And there is no higher point in the (filter span)-wide band centred on

the point

Figure 10: Peaks definition

Click on threshold definition and left click on the graph: the thresholdwill be redefined to the Y-axis value of this point. The peaks will be

represented with blue rectangles.

The filter span is the width of the chosen channel. By default the filterspan corresponds to the chosen bandwidth. In this window, the filter

span can be entered manually.There is a pre-control on the number of

points used to determine if a point is a peak. The following equation is

used for this assessment:

FilterSpan*NumberOfPointAnalyser/ (Fmax-Fmin)< 1.3=> No peak selection.

If the entered filter span does not answer to this equation, a window will pop

up, where you can enter manually a new filter span.


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Note 10:If you have clicked on the auto peaks selection button in the main

panel, when the panel Peak display and selection is displayed for the first

time, some peaks are selected automatically in relation with the level defined

in Frequency bands configuration. They do not take into account of

threshold line.

STEP 2: Re-measure one peak

In the selected peaks list or directly on the graph, left click on theselected peak

Right click to open the re-measurement window.

STEP 3: Re-measure all peaks

Select all the peaks to be re-measured in the selected peakslist. Go to measurement in the menu and select remeasure all selected

peaks.

Figure 11: Re-measure one peak


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In the selected peaks list, an indication is given on wether or not the

RBw/VBw is proper. The mention OK, "usable" or Not OK appears.

RBW/BandWith < 0.25 => Not OK

RBW/BandWith < 0.5 => usable

RBW/BandWith > 0.5 => OK

3.2 Analysis in BCCH mode

STEP 1: select channel

The BCCH window displays the measured peak for each channel. Tocalculate the total field, click right on the selected channel: it will be

displayed in the all BCCH channel list.

Figure 12: Select channel for BCCH analysis mode

STEP 2: Re-measure one channel

Click on the chosen column with a left click Launch the re-measurement with a right click


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Figure 13: Selection of channel for BCCH re-measurement mode

To extrapolate the electric field to the maximum, you can enter the number of

TRX for each BCCH signal.

STEP 3: Re-measure all chosen channels

Go to the measurement menu and select remeasure all selectedBCCH)

3.3 Re-measure in UMTS mode

STEP 1: Select Carrier

Click right on the curve and validate the selection. The chosencarrier will appear in the carriers list.


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Figure 14: Window for re-measurement in UMTS mode

STEP 2: re-measure one carrier

Click left on the chosen carrier and launch the measurement with aright click.

STEP 3: re-measure all the carriers (CPICH value)

Go to the measurement menu and select remeasure all selectedcarriers

STEP 4: view the scrambling code

To view the information about the detected scrambling code, double click

on the carrier. The scrambling code values are expressed in the unit

selected in the UMTS processing panel.


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Figure 15: Scrambling code information window

STEP 5: check the case Extrapolation FactorIf you want to extrapolate the result, check the Extrapolation Factor case

and indicate the extrapolation factor that you want to use.

Extrapolated Level = SQRT (Extrapolation Factor) * Detected Level.


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Figure 16: Extrapolated Level

3.4 Additional functions for re-measurements

Free scan: a free scan is available directly from the BCCH, peak and UMTS

measurement window. Select the zone of the curve to be scanned and click on

the free scan button. The following window will appears:

Figure 17: Pop up window for free scan re-measurement

The RBW/VBW can be changed at this stage manually or not. Validate to

launch the scan.


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4 INSITE Frees LEXICONSession

A session is a measurement on a fixed point that contains all the measured

bands. It includes the initial measurement as well as the re-measurement(s).

Band

A band is composed of one measure and all the measurements for one

frequency band (between two limits). It is associated with an analysis mode

that will lead to a re-measurement screen.

RBw

The RBw (Resolution Bandwidth) represents the bandwidth of a filter that will

be applied to the input signal. With a broader RBw, the signal will be higher,

as it is taken on a wider bandwidth). If the RBw is to low compared to the

channel width, the whole power in a channel may not be measured. This will

lead to an underestimation of the field level.

VBw

The VBw (Video Bandwidth) is linked to the RBw. It's the bandwidth of a filter

that may be seen as the inverse of an integration time for each point.

The lower it is, the longer the scanning takes. The bigger it is, the more

important are the variations.

It is generally advised to respect this relation:

VBw = RBw*3s

Attenuation

Attenuation is placed between RF Input of the analyser and the mixer to avoiddamage on the mixer. It helps to measure high power signals and prevents

the analyser to suffer damages (even if a band is not scanned). The

attenuation should be constant for all the measurements.

BCCH

A BCCH (Broadcast Control Channel) is a fixed emitting channel with a

constant level.


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In GSM and DCS, it is a Downlink channel (from the base station to the

mobile) that enables the base station to control the power emitted on traffic

channels.

Determining the maximum electro magnetic field level is difficult due to the

very versatile emission levels of all the signals.

The internationally accepted method is to identify the BCCH channels (the

shape of their spectrum is specific, and their level is constant), get the power

level in these channels and then extrapolate the BCCH level by multiplying the

level by the square root of the number of Trx for this transmitter.

The Trx number is the maximum number traffic channels that could be

activated when the traffic is at its maximum state. It is an operator-owned

data, which depends mainly on the population density of the area. When this

information is unknown, the following table can be used:

GSM DCS

High Density area (big station, fair) 6 8

Large city (> 400k inh.) 4 8

Small city (> 100k inh.) 3 6

Countryside or small town (


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Mut.59.1.11.Satb.b (User Manual Insite Free)

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