Invisible systems QC0153 Quick start guide





O
p
erational Manual
GSM Signal
Analyser

Manual Ref: QC0153
Version: JAN17 1.0

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Email:info@invisible‐systems.com
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QC0153GSMSignalAnalyser
System Concept

VersionTrackingDateAuthorChanges
v1.023/01/2017ChrisBoddy 
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RFTransmittersconnecttosensorsormetersandsenddatatotheinfrastructureinternet
connectedGatewayonsite
TheGatewaystoresandtransfersthedatatotheRealtimeOnlinecloudserveroverasecure
mobilecellularconnection
RealtimeOnlineprovidesawebbasedportalofvisualisationdashboards,reports,graphsand
transmitsouttailoredautomaticreportsandnotificationsintheeventofexceptions

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Email:info@invisible‐systems.com
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QC0153GSMSignalAnalyser
Contents
1.Description......................................................................................................................................4
2.GSMSignalAnalyserContents........................................................................................................4
3.QuickStartGuide............................................................................................................................5
4.SiteSurvey.......................................................................................................................................7
5.FittingaSIMcard............................................................................................................................7
6.EnteringtheSIMCard’sPINNumber..............................................................................................8
7.MainMenu......................................................................................................................................9
8.SETUPScreen................................................................................................................................10
9.OptionsScreen..............................................................................................................................11
10.GPRSTestScreen......................................................................................................................12
11.SurveyScreen............................................................................................................................13
12.ResultsScreen...........................................................................................................................14
13.MonitorScreen.........................................................................................................................16
14.JammingDetection...................................................................................................................18
15.ScreenSaver..............................................................................................................................18
16.Power‐UpFunctions..................................................................................................................18
17.AerialSiting...............................................................................................................................19
18.BatteryandCharging................................................................................................................20
19.BER(BitErrorRate)...................................................................................................................21
20.APPENDIX1–Troubleshooting................................................................................................22
21.GSMFaults................................................................................................................................22
22.APPENDIX2‐Specification.......................................................................................................23
23.APPENDIX3‐GlossaryofTerms...............................................................................................24

DocumentNameManualDescriptionVersion
QC0140UnboxedUltraRFGatewayInstallationManual1.0
QC0141BoxedUltraRFGatewayInstallationManual1.0
QC01423PhaseWirelessMeterInstallationManual1.0
QC014321‐42ChannelSub‐meterInstallationManual1.0
QC0144OpticalPulseTransmitterInstallationManual1.0
QC0153GSMAnalyser1.0

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Email:info@invisible‐systems.com
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QC0153GSMSignalAnalyser
1. Description
This manual documents the use of the following products:
• D2366-UK – Quad band GSM Signal Analyser with UK plug-top charger
The GSM Signal Analyser is a signal analyser for use with GSM radio networks. It is suitable for
testing where automatic signalling equipment is used, including smart metering and any
communication equipment that requires GSM to operate correctly. It may be used to position an
aerial and to test the performance of aerial systems.
The GSM Signal Analyser displays mobile network information including network provider
names, cell identities, frequencies and signal strength. Jamming signals may also be detected.
The GSM Signal Analyser contains a battery allowing remote operation for up to 12 hours. The
internal battery may be recharged from the supplied mains power supply or a suitable car
charger.
To improve battery performance and life, please ensure you charge the battery for a
minimum of 12 hours before first use.
If the GSM Signal Analyser is left switched on and unused, the unit will automatically switch
off after a preset time.
The GSM Signal Analyser is contained within a strong protective sleeve and is supplied
complete with a charger and manual.
2. GSMSignalAnalyserContents
Mains plug-top charger
GSM Signal Analyser

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QC0153GSMSignalAnalyser
3. QuickStartGuide
1. Charge the battery before use Connect
the aerial (see section 16).
To switch on the GSM Signal Analyser, press
the On/Off button until the logo is shown
.(1)
2. This is followed by the Startup screen (see
section 6).
This screen is shown for about 30 seconds
while the radio module is powering up.
3. If a SIM is fitted that requires a PIN, this screen
gives the option to use the Saved PIN or
enter a new PIN (see section 5.1).
If not, the Main Menu screen will appear.
Once the Saved PIN is used or a new PIN is
entered, the Main Menu screen will appear next.
4. MAIN Menu
(See section 7 for information).
Press the right button to select the
Survey screen.
5. SURVEY Screen
If Engineer mode is selected in Setup,
the following screen will appear.
If Surveyor mode is selected in Setup,
the following screen will appear.
(See section 10 for information)
Press the right button to start the survey.
The GSM Signal Analyser will measure
all detectable cells.
Do not move or touch the aerial.
The survey may take up to 3 minutes
to complete.
Shows number of cells detected
Press the down button to select the
Results screen.
-►Use Saved Pin?
Enter PIN
MAIN
-►Survey Results
- old Monito r
Setup Options
Power Off
SURVEY
Networks: 5
◄Network searc h ►
Start Survey
Network:Any
SURVEY
(Takes 2 - 3 minutes)
►Start Survey
SURVEY
Cells 0 OK 0
Please wait ...
SURVEY
Cells 45 OK 15
Survey com plete ▼
Results

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QC0153GSMSignalAnalyser
Quick Start Guide (continued)
6. RESULTS Screen
(See note below and section 11
for information)
GSM cells will be displayed in
decreasing order of signal strength.
If a number, and not the name of the
network, is shown, another network
search should be done (see section 10).
Press the right button to display the next
cell (weaker signal).
Press the left button to display the
previous cell (stronger signal).
Press the down button to return to the
Main menu.
In the main menu, scroll down then use the
right arrow to enter the Monitor Screen.
7. MONITOR Screen
(See section 12 for information)
The display is updated every 8 seconds. It
will normally show the strongest cell.
This display is used to locate an area for
the strongest signal strength.
Use this position when installing the aerial.
(See section 16 for more information)
Press the down button to return to the
Main Menu.
8. Select a new survey etc... as required.
RESULTS
◄► Index:1
SIG:45% GSM 1800
CELL:45723
T - Mobile UK
SIM: Not Fitted
(Surveyor mode)
MAIN
Survey
Results
-►Monitor
Setup
Options
Power Off
MONITOR
◄► T - Mobile UK
GSM 1800 dBm:27%
CELL:45723 BAT:100%
SIM: Not Fitted
MAIN
-►Survey
Results
Monito r
Setup
Options
Power Off
9. To switch off, select Power Off in the
Main menu, or press the On/Off button
until the Shutdown screen is displayed.
“Battery Low” may be display instead
when battery needs charging.
Shutting down ...
NOTE: when first switched on, the GSM Signal Analyser will still retain the results from the
last survey. These will be available until a new survey is started.

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QC0153GSMSignalAnalyser
4. SiteSurvey
It is recommended that a site survey is conducted prior to installation of any GSM equipment
and associated aerial system to confirm that an adequate radio signal is available at the site.
It is particularly important that a site survey is conducted when:
a. There may be a weak signal strength at the proposed site;
b. It is known that the aerial will be fitted inside a sheet metal covered building or under
a sheet metal roof;
c. The aerial will be on lower floors of buildings in heavily built-up areas.
The GSM Signal Analyser is ideal for surveying a proposed site for a suitable radio signal. Note
the point of best signal. Install the aerial at this location.
Use the GSM Signal Analyser to find the point of best signal. This means maximising the signal
strength.
Full details on optimising signal strength are in section 16.
5. FittingaSIMcard
Note: Before inserting or removing a SIM card, please make sure the unit is switched off.
To access the SIM card holder, simply remove the GSM Signal Analyser out of the rubber sleeve
from the bottom end. You will find a small yellow button - press on it with a pen and the SIM card
holder will be ejected. Fit the SIM card onto the holder and push the latter back into the GSM
Signal Analyser.
When no SIM card is fitted, the unit will display results for all networks detected.
When a SIM card is fitted, the unit will be locked to that operator’s network.

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QC0153GSMSignalAnalyser
6. EnteringtheSIMCard’sPINNumber
When a SIM card is used that requires a PIN, the following menu will appear:
- ►U s e S a v e
d
P I N ?
E n t e r P I N
To use the Saved PIN
Alternatively scroll down
and then right to Enter a
new PIN
The following screen will
appear to enter a new
PIN:
+
E n t e r P I N : 1 2 3 4
▲= C l e a r P I N
◄= C h a n g e d i g i t
►=
A
c c e
p
t
d i g i t
▼= A c c e p t P I N
Follow the on-screen
instructions to enter your
PIN then press down to
validate.
Alternatively pressing
up twice will take you
back to the use saved
PIN/enter PIN menu
Enter the SIM card’s PIN number the first time the SIM card is used. Once the GSM Signal
Analyser has shut down, this PIN number will be kept in memory until another PIN is entered.
In case of an incorrect PIN number, the following screens will be shown:
P l e a s e w a i t . . .
S I M : W r o n g P I N
then
D y c o n L t d .
G S M S i g n a l A n a l y
s e r V 3 . 2 9
E r r o r : G S M F a u l t 5
Press Up or Down arrows to get to the Main Menu.
In order to enter the correct PIN number, turn the GSM Signal Analyser off then power it up
again. The screen with the “Use saved PIN?” or “Enter PIN” options will appear. Choose “Enter
PIN” and follow the instructions on the next screen.
NOTE: the SIM card will be locked after 3 failed attempts at entering the correct PIN code. To
resolve a locked SIM you will need to contact the SIM card supplier for a PUK code and enter
this using a suitable mobile phone.

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QC0153GSMSignalAnalyser
7. MainMenu
This is the menu from which all functions are selected.
M A I N
- ►S u r v e y
R e s u l t s - o
l d M o n i t o r
S e t u p
O p t i o n s
P o w e r O f f
Up/Down (highlight an option).
Then select the required option (see below).
Select the highlighted option:
Survey (see section 10)
Results (see section 11)
Monitor (see section 12)
Setup (see section 8)
Options (see section 9)
Power off = switch off (same as Off button)
Go to Start-up screen.
(See section 6)
Note: ‘-old’ will be displayed next to RESULTS if a survey hasn’t been performed since
power up.

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QC0153GSMSignalAnalyser
8. SETUPScreen
Settings to make the test set operate how you require.
S E T U P
◄►E x i t / S a v e
7 0
C o n t r a s t :
s e c s
D e l a
y
: 0
M a x C e l l s : 5 0
m i n s
A
u t o O f f : 1 2
M o d e : E n g i n e e r
L o a d d e f a u l t s
Up/Down (highlight an option)
Then select the option (see options below)
Right arrow for the selection Option
Exit/Save = save settings then Go to Main Menu (see section 7)
Contrast = increase display brightness
Delay = increase delay before survey start, from 0 to 99 seconds (1)
Max Cells = increase the number of cells to find during survey (3)
Auto Off = increase minutes to auto-power off
Mode = toggle between Engineer or Surveyor mode
Load Defaults = load factory default settings
Left arrow for the selected Option
Exit/Save = DOES NOT save settings then Go to Main Menu
(2)
Contrast = decrease display brightness
Delay = decrease delay before survey starts, from 99 to 0 seconds
(1)
Max Cells = decrease the number of cells to find during survey
(3)
Auto Off = decrease minutes to auto-power off
Mode = toggle between Engineer and Surveyor
Load Defaults = no action
Notes:
(1)
This allows positioning of the GSM Signal Analyser in a location and for the surveyor to
retreat before the survey starts.
(2)
The selected settings will remain active until the GSM Signal Analyser is switched off.
(3)
The default is 50 cells. This is the number of cells found, not the number of cells which
are OK. Reducing this number will reduce the time to complete a survey in a high
coverage area. If you are looking for a particular network’s results, reducing this number
may mean you will not see all available cells on your network. To perform a survey on a
particular network, use the facility in the Monitor screen to lock onto a network, then do
the survey.

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QC0153GSMSignalAnalyser
9. OptionsScreen
O P T I O N S
◄►E x i t / S a v e
E n g l i s h
L a n
g
u a
g
e :
S o u n d e r : O N
B a n d : A u t o O F F
A
d v a n c e d :
G P R S
T e s t
Up/Down (highlight an option)
Then select the option (see options below)
Right arrow
Exit/Save = save settings then Go to Main Menu (see section
7) Language = toggle between available languages
Sounder = select On
Band = select frequency bands to use. Advanced
= select ON
(1)
(Engineer mode only)
GPRS Test = test the GPRS link (requires a GPRS-enabled SIM card)
(see section 9.1)
Left arrow
Exit/Save = DOES NOT save settings then Go to Main Menu
Language = toggle between available languages
Sounder = select OFF
Band = select frequency bands to use.
Advanced = select OFF
(1)
GPRS Test = no action
(1)
– selecting ON or OFF in Advanced will change the level of information available on the Monitor
screen – the minimum and maximum values shown under the name of the network operator will only
appear on the screen when Advanced = ON is selected.
Remember: In order to select ON or OFF in Advanced, Engineer mode must be first selected
in Setup. In Surveyor mode the option is always OFF.

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QC0153GSMSignalAnalyser
10. GPRSTestScreen
G P R S T e s t G P R S T e s t
▲A P N = T - M o b i l e
► G P R S T e s t
► G P R S T e s t
▼ E x i t ▼ E x i t
Engineer Mode Surveyor Mode
Option available only in
Engineer Mode
Press the up arrow to select a suitable APN:
Internet – for use anywhere in the world with a GPRS-enabled SIM
card
All others – use the corresponding SIM card
Press the right arrow to start the GPRS test.
Note: a SIM card must be inserted in the GSM Signal Analyser.
If not, the following screen will be displayed:
G P R S T e s t G P R S T e s t
▲ A P N = T - M o b i l e
►G P R S T e s t
► G P R S T e s t
▼ E x i t
▼E x i t
S I M : N o t F i t t e d S I M : N o t F i t t e d
Engineer Mode Surveyor Mode
The screen will display a pass or fail message:
G P R S T e s t
▲A P N = T - M o b i
l e ►G P R S T e s t
▼E x i t
G P R S T e s t O K
Down arrow
Exit = Go to Main Menu (see section 7)
A GPRS test can only be performed if a GPRS-enabled SIM is inserted into the GSM
Signal Analyser.
There are 2 different GPRS tests that can be performed:
1. The 1
st
(applicable to any GPRS-enabled SIM) is a test to determine whether the unit
can attach to the GPRS network from that location/base station.
For any GPRS enabled SIM, select 'Internet' from the GPRS menu and press
Pass/Fail indicates if the GSM Signal Analyser could successful attach or not.
2. The 2
nd
(applicable only to certain UK SIMs) is a test to determine whether the unit
can initiate a GPRS session on that particular network. Select the relevant APN for the
SIM and press
Note : If a CSL Dualcom SIM is used, connection to their VPN may be checked by
selecting VPN as the APN.
A pass indicates successful GPRS session on the particular network has been opened. A fail
indicates the unit was unable to start a GPRS session from that location/base station.

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QC0153GSMSignalAnalyser
11. SurveyScreen
This looks for all cells in the area and measures their performance. A survey can take up to
3 minutes.
S U R V E Y S U R V E Y
N e t w o r k s : 5 ( T a k e s 2 - 3 m i n u t e s )
◄ ►S t a r t S u r v e y
N
e t w o r k s e a r c h
►S t a r t S u r v e y
N e t w o r k : A n y
Engineer Mode Surveyor Mode
Left arrow – Start a network search (Engineer
Mode)
(1)
The GSM Signal Analyser will return to the
main survey screen once complete.
Right arrow – Start the survey
The Survey screen shows quantity of
cells detected and usable.
(2)
Up/Down arrow – Go to Main Menu (see
section 7)
Notes:
S U R V E Y
S e a r c h i n g . . .
P l e a s e w a i t . . .
S U R V E Y
P l e a s e w a i t . . .
S U R V E Y
C e l l s 0 O K 0
P l e a s e w a i t . . .
(1)
– The network search is done automatically when a survey is started in Surveyor mode
(2)
– If a network is selected only these cells will be OK (see section 12 for network selection)
When the survey is complete there are a number of options
S U R V E Y
C e l l s 4 5 O K 1 5
S u r v e y c o m p l
e t e ▼R e s u l t s
S U R V E Y
C e l l s 4 5 O K 1 5
S u r v e y c o m p l
e t e ▼R e s u l t s
Engineer Mode Surveyor Mode
Down arrow – Go to the Results screen
(see section 11)
Additional options only available in engineer mode (see
following pages for details).
Left arrow – Start a new survey.
P l e a s e w a i t . . .
Up arrow – Go to Main Menu (see section 7)
S U R V E Y

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QC0153GSMSignalAnalyser
12. ResultsScreen
Displays the performance of all cells measured in the survey.
R E S U L T S
◄► I n d e x : 3
G S M 1 8 0 0
2
S I G : 6 0 %
C E L L : 4 5 7 3
T - M o b i l e U K
S I M : N o t F i t t e d
Surveyor Mode
Swap between Summary (basic) and Detailed views
(only in Engineer mode - see next page)
Go to Main Menu (see section 7)
Display cells in decreasing order of signal strength
Display cells in increasing order of signal strength
NOTE: when first switched on, the test set will still retain the results from the last survey. These
will be available until a new survey is started.
Summary (basic) View
GSM The radio frequency band used by the displayed cell
Radio signals using lower frequencies penetrate better into buildings
CELL Cellular identification number (decimal) of the cell (GSM)
INDEX Durin
g
the surve
y
, each detected cell is
g
iven a number. The cell with the
strongest signal is given number 1.
Higher numbers = lower strength signal
NETWORK
The network name of the displayed cell
(1)
SIG Signal Strength
Shown as a percentage – 33% and above is useable.
SIM Current SIM status
Notes:
(1)
– If the MCC and MNC codes are shown instead of the network name, do another
network search (Engineer mode) or another survey.

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QC0153GSMSignalAnalyser
RESULTS (continued)
Detailed View – available only in Engineer Mode
From the Results menu, press the up arrow to toggle between detailed view and summary view
screens:
R E S U L T
◄► I n d e x :3
d B m : - 7 3
A R F C N : 7 1 7
C E L L : 4 5 7 2 3
M M C : 2 3 4
L A C : 4 2 1 M N C : 3 0
S I M : N o t F i t t e d
R E S U L T
◄► I n d e x : 3
S I G : 6 0 %
G S M 1 8 0 0
3
C E L L : 4 5 7 2
U K T - M o b i l e
S I M : N o t F i t t e d
Detailed
View
Summary
View
INDEX During the survey, each detected cell is given a number
The cell with the strongest signal is given number 1
Higher numbers = lower strength signal
GSM The radio frequency band used by the displayed cell
Radio signals using lower frequencies penetrate better into buildings
ARFCN Absolute Radio Frequency Channel Number
CELL Cellular identification number (decimal) of the cell (GSM)
SIG Signal Strength
Shown as a percentage – 33% and above is useable
LAC Local Area Code – identifies the area in which the cell is situated
SIM Current SIM status
dBm FSSI Signal Strength – scale = decibels ref to 1mW
MCC Mobile Country Code – a 3-digit number = country (234 = UK)
MNC Mobile Network Code
–
a 2 or 3-di
g
it number = network within the countr
y
(15 = Vodafone UK)

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QC0153GSMSignalAnalyser
13. MonitorScreen
The display is updated every 8 seconds. The displayed cell is the strongest on the selected
network. As the aerial is moved, a different, stronger cell may be displayed.
M O N I T O R
T - M o b i l e U K
G S M 1 8 0 0
S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
Surveyor Mode
Go to Main Menu (see section 7)
Additional options only available in engineer mode (see following pages for
details). Swap between Summary (basic) and Detailed
views
When SIM card is fitted and locked = no action
When SIM card is fitted and unlocked = lock onto
selected network
First highlight the network required (use left button),
then press the right button to select. Wait for
network to be selected (it may take 2 minutes to
change).
When SIM card is fitted and locked = no action
When SIM card is fitted and unlocked, or
when SIM card is absent = highlight Network
Press repeatedly to highlight the required network,
then press the right button to select. Selecting a
network also affects the survey results (see section
10)
To obtain the list of network operators, select
Network Search by pressing the left arrow, then
press the right arrow.
To return to auto mode after having selected a
particular network operator, select Auto and
press the right arrow.
Summary of Terms (Surveyor mode)
M O N I T O R
> > N e t w o r k S e a r c h
G S M 1 8 0 0 S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
M O N I T O R
> > A u t o
G S M 1 8 0 0 S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
GSM The radio frequenc
y
band used b
y
the displa
y
ed cell
Radio signals using lower frequencies penetrate better into buildings
CELL Cellular identification number (decimal) of the cell (GSM)
SIG Signal Strength
Shown as a percentage – 33% and above is useable.
BAT % = char
g
e remainin
g
in batter
y
–
100% = full
y
char
g
ed
EXT = charger connected
SIM Current SIM status

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QC0153GSMSignalAnalyser
MONITOR (continued)
Detailed View – available only in Engineer Mode
From the Monitor menu, press the up arrow to toggle between the detailed view and
summary view screens:
M O N I T O R
◄► T - M o b i l e U K
A R F C N : 7 1 7 d B m : - 7 3
B S I C : 1 1 C S Q : 1 9
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
M O N I T O R
◄► T - M o b i l e U K
G S M 1 8 0 0
S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
Advanced (in Setup) = OFF
Detailed
View
Summary
View
M O N I T O R
◄► T - M o b i l e U K
M i n : - 7 3 M a x : - 7 3
A R F C N : 7 1 7 d B m : - 7 3
L A C : 4 2 1 C S Q : 1 9
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
M O N I T O R
◄► T - M o b i l e U K
M i n : 6 0 %
M a x : 6 0 %
G S M 1 8 0 0 S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0
0 % S I M : N o t F i t t e d
Advanced (in Setup) = ON
NETWORK The network to which the cell belongs, e.g. Vodafone
GSM The radio frequency band used by the displayed cell
Radio signals using lower frequencies penetrate better into buildings
ARFCN Absolute Radio Frequency Channel Number
BSIC Base Station Identity Code – identifies the beacon frequency
CELL Cellular identification number of the cell (decimal)
dBm FSSI Signal Strength – scale = decibels ref to 1 mW
CSQ Signal Quality – scale = 0 – 31 (11 and above is acceptable)
SIG Signal Strength
Shown as a percentage – 33% and above is useable
Min The minimum si
g
nal stren
g
th measured on this cell - if the cell numbe
r
changes this value is reset
Max The maximum si
g
nal stren
g
th measured on this cell - if the cell numbe
r
changes this value is reset
BAT % = char
g
e remainin
g
in batter
y
–
100% = full
y
char
g
ed
EXT = charger connected
SIM Current SIM status
LAC Local Area Code – identifies the area in which the cell is situated.
Displayed when in engineer mode and advance on for version 3.29 and up

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QC0153GSMSignalAnalyser
14. JammingDetection
M O N I T O
R
< <
> > J A M M I N G
T - M o b i l e U K
G S M 1 8 0 0
S I G : 6 0 %
C E L L : 4 5 7 2 3 B A T : 1 0 0 %
S I M : N o t F i t t e d
If a jamming signal is present of sufficient strength to block communication to the GSM
base stations, the signal analyser will indicate this in the Monitor function with a flashing
>>JAMMING<< message.
The signal strength indicator on the right hand side of the display will indicate the strength of the
jamming signal.
By moving the meter around and checking the signal strength, it may be possible to locate
the source of the jamming signal.
15. ScreenSaver
It reduces battery usage to a minimum.
Moving Logo
Press any button to return to the previous screen.
16. Power‐UpFunctions
By holding down the different keys, several functions are available to the user:
- Holding down the UP key = load defaults, clear all survey results, clear network
list
- Holding down the RIGHT key = delete saved SIM PIN
- Holding down the LEFT key = display the logo for 30 seconds
- Holding down the DOWN key = clear network list

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QC0153GSMSignalAnalyser
17. AerialSiting
ALWAYS do a site survey to find the point of best signal before installation.
The aerial should normally be mounted vertically at the point of best signal. This is usually the
highest point in the building (often the loft area). For security applications, the position chosen
should be inside the protected area.
Large metal structures can affect radio signals. Therefore, whenever possible, avoid installing the
aerial directly under sheet metal roofs or within sheet metal-covered buildings because this will
reduce the signal strength. If this is unavoidable, the strongest signal will be found away from the
metal roof or close to large external windows or skylights.
Many large buildings closely spaced together will reduce the signal strength, particularly for
aerials on the lower floors, e.g. ground floor installation in city centres. The strongest signal will
normally be found close to external windows or skylights as high as possible.
Wherever possible, do not install the aerial close (2 metres) to sources of interfering signals.
These include: fluorescent or neon lighting, power distribution panels, power cable runs,
fridges, freezers, air-conditioning and ventilation equipment as well as electronic equipment,
e.g. photocopiers, fax machines, computers, televisions...
Reliable radio operation is unlikely with low signal strength, with an incorrectly installed aerial or
with strong interfering signals.
Use the GSM Signal Analyser to find the point of best signal. This means maximising the signal
strength.
The supplied short black aerial is for hand-held use, i.e. site surveys.
OR
Use an aerial adapter to connect and test a remote aerial.
Remember: It is always easier to find the point of best signal before the equipment is fitted on
the wall. Moving aerials, cables, trunking... after installation is wasted time and effort.

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QC0153GSMSignalAnalyser
18. BatteryandCharging
Before first use, fully charge the battery.
When charging, use only the supplied mains plug-top power supply.
Charging will typically take 3 hours. Please ensure a full charge is given as the battery state
reading can be in error after a short charge.
A fully charged battery will operate the GSM Signal Analyser for up to 12 hours.
The battery state may be read on the Monitor screen (see page 16).
When the charger is connected, the unit is always on and the On/Off button will not turn the
unit off. The charger can be left plugged in indefinitely.
When the charger is disconnected, the GSM Signal Analyser will automatically switch off
within one minute or after the preset time has expired.
If the GSM Signal Analyser is left switched on and unused (no buttons are being pressed), the
unit will automatically switch off after a preset time to preserve the battery life. The preset time
may be changed in the Setup screen (see page 9).
The internal battery is a Solid Electrolyte Lithium long type that may be transported, charged
and used in any orientation. It should be protected from frost and temperatures above 40°C.
As with all rechargeable batteries, over several years, its capacity to store power will degrade. If
the operational life of the battery reduces below 1 hour, contact your supplier for replacement
information.
Do not attempt to open the case or remove the battery.