piciorgros TETRA TTS-2000A User manual

TTS-2000A
TETRA
Site Survey Test Set
V 3.10, April 2019
Funk-Electronic Piciorgros GmbH
Claudiastrasse 5
51149 Cologne
Germany

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 2of 57
Content
1!INTRODUCTION......................................................................................................................4!
1.1!Overview ..................................................................................................................................4!
1.2!Safety Precautions ....................................................................................................................4!
1.3!Disclaimer.................................................................................................................................4!
1.4!Software Versions.....................................................................................................................4!
1.5!Functions and Features.............................................................................................................5!
1.5.1!Use of the TTS-2000A in Air-Interface-Encrypted Networks..............................................5!
1.6!Scope of delivery......................................................................................................................6!
1.7!Antenna data.............................................................................................................................6!
2!CONNECTIONS AND HARDWARE INSTALLATION......................................................7!
2.1!Mechanical Details...................................................................................................................7!
2.2!Dimensions...............................................................................................................................7!
2.3!Power Supply Input and Battery Charging...............................................................................8!
3!TTS-2000A QUICK SETUP GUIDE........................................................................................9!
4!STARTING PROCEDURES ..................................................................................................10!
4.1!Preparing the Set.....................................................................................................................10!
4.2!Powering the Set.....................................................................................................................10!
4.3!Connecting the WiFi to the TTS-2000A ................................................................................11!
4.4!Switching off ..........................................................................................................................11!
4.5!iPad (iCloud) account settings and app updates.....................................................................12!
5!TTS-2000A C-APP FUNCTIONS...........................................................................................13!
5.1!iPad screens ............................................................................................................................13!
5.1.1!The main screen / Main.......................................................................................................13!
5.1.2!Status line15!
5.2!The network neighbor cell display/ Neighbors.......................................................................16!
5.3!Network Information..............................................................................................................17!
5.3.1!Serving Cell Information.....................................................................................................18!
5.3.2!Network Information...........................................................................................................19!
5.4!The TETRA parameters and antenna setting screen ..............................................................20!
5.4.1!TETRA Scan Parameters.....................................................................................................21!
5.5!The Map View........................................................................................................................22!
5.7!The Calibration Screen...........................................................................................................23!
5.8!Update.....................................................................................................................................24!
5.9!Saving data for further processing..........................................................................................25!
5.10!TTS-2000A Data import.......................................................................................................26!
5.11!TTS-2000A basic configuration...........................................................................................27!
6!INSTALLING THE PC BASED MAIL SERVER................................................................31!
6.1!Introduction ............................................................................................................................31!
6.2!Start the server........................................................................................................................31!
6.3!Setting up the server in the iPad.............................................................................................32!
7!COVERMAP PC TOOL .........................................................................................................34!
7.1!Base station coverage analysis/ RSSI Level...........................................................................34!
7.2!RSSI analysis/ RSSI good/bad ...............................................................................................36!

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 3of 57
7.3!Cell change analysis/ Show change of serving LAC..............................................................37!
7.3.1!Cell Reselection Decisions..................................................................................................38!
7.4!Show difference between best cell and serving cell/ RSSIdelta.............................................39!
7.5!Base Stations...........................................................................................................................40!
8!TTS-2000S SCANNER APP FUNCTIONS...........................................................................42!
8.1!iPad screens ............................................................................................................................42!
8.1.1!The main screen / Scan........................................................................................................42!
8.1.2!The Monitor screen / Monitor .............................................................................................46!
8.1.3!The network parameter screen / Network Information .......................................................47!
8.1.4!TETRA Scan Parameters and Antenna Gain / TETRA Settings.........................................48!
8.1.5!Recording Screen / Monitor Data........................................................................................48!
9!TTS-2000M MANUAL APP FUNCTIONS...........................................................................49!
9.1!iPad screens ............................................................................................................................49!
9.1.1!The project screen / Home...................................................................................................50!
9.1.2!The main screen / Manual ...................................................................................................51!
10!SPARE PARTS AND FOLLOW UP ORDERS....................................................................54!
11!SPECIFICATIONS..................................................................................................................57!

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 4of 57
1Introduction
1.1 Overview
This document contains information about the installation, settings, and operation of the
TTS-2000A TETRA Site Survey Test Set. Additional information is also available in
the Internet, on the website www.TetraModem.com.
1.2 Safety Precautions
It is essential to ensure that the radio and antenna systems are installed and
commissioned by trained personnel only.
This radio equipment should not be used in life-support systems or in safety systems
without our prior written permission.
It is not permitted to interact with the TTS application while driving a vehicle. Please
contact local jurisdictions for further information.
1.3 Disclaimer
We, Funk-Electronic Piciorgros GmbH, have carefully checked the contents of this
document and the hardware and software described in it for compatibility. However, we
cannot exclude possibilities of deviations and cannot guarantee complete conformity of
the document with the equipment it describes. If any corrections or improvements are to
be made, they will be taken into consideration in the next version of this document.
Important instructions are marked by the expressions "Important", "Note" or
“Caution!”. These should be carefully observed. Explanations regarding these
precautions can be found on the website www.TetraModem.com, in the login area.
1.4 Software Versions
The software (firmware) versions and document editions history is listed below:
Firmware
Version
Document
Version
Comments / Changes
1.0
1.0
First Release
1.0
1.1
Added Mail Server description
2.92
1.2
Finalizing of features
Map View added
TTS-2000A does no active registration or transmit actions
3.15
1.3
Documentation update

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 5of 57
1.5 Functions and Features
The TTS-2000A is a portable test device, which helps the user to monitor and, with the
information gathered, understand and improve the performance of their TETRA
network. It is an instrument to visualize the RF field strength, the bit error rate and
network specific information like the neighbor report (including their RSSI) or
broadcast messages at any location within the network.
This set is a “ready to go” TETRA site survey test set that can be used to measure up to
32 reported neighbor cells simultaneously.
It is built into a small Pelicase enclosure and can be operated stand alone, without the
requirement of an external PC. The data acquisition and display is performed by an iPad
Mini (included). Power is provided to the unit using either an in-car cigarette lighter
lead or optionally with a 12 to 24 Volt power supply.
With a built-in rechargeable battery the TTS-2000A can be operated up to four hours
without any external power attached, which makes it ideal for walk-around tests in areas
that are not accessible by a vehicle.
A number of accessories, such as cigarette lighter cable, wall plug charger/power cable,
magnetic antenna and analysis software are part of the package.
After the TTS-2000A has been powered up, the TETRA network parameters and the
operating modes can be configured in the iPad app. This includes the TETRA scan
frequency range, MCC and MNC. It should be noted that the TTS is never registered to
a TETRA network. It only simulated the registration meaning that no ISSIs are needed
for the analysis.
As the measurement is not only taken from the base station the device is logged into,
also from all reported neighbor cells, the cell overlap can be easily checked. Once the
measurement has been started, the GPS coordinates, the received field strength, radio
channel and the LAC code of the registered cell and the number of reported neighboring
base stations are displayed.
After completion of the survey, a simple touch gesture generates an email on the iPad,
including a .csv file with all the data for later analysis on a computer using any
spreadsheet program, or the data can be converted into a graphical site survey map
based on Google Maps (included in package).
1.5.1 Use of the TTS-2000A in Air-Interface-Encrypted Networks
As the TTS-2000 is not actively registering to the TETRA network, it cannot decode
messages, which are Air-Interface-Encrypted. For a full functionality it needs the
Neighborhood Broadcast Messages from the network, hence this broadcast information
must be sent in clear to fully use the TTS-2000A.
In most networks these broadcast messages are always sent unencrypted, in others there
is an option to configure this. If the TETRA network uses AIE, please check with the
network operator if the NBCells broadcasts are sent in clear.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 6of 57
1.6 Scope of delivery
The TTS-2000A package contains:
•TTS-2000A
•iPad Mini including charger
•Power supply / charger for the TTS-2000A (100-240V AC)
•Car power supply / charger cable for the TTS-2000A
•Magnetic Antenna including 5m cable
•Whip antenna for walk test
•USB Stick with:
- This documentation
- CoverMap PC software
- TTS mail server application
1.7 Antenna data
The included magnetic antenna has 0dB gain, the 5m RG58 cable including connectors
has an attenuation of 1dB.
By using the magnetic antenna including the 5m cable the setting “Antenna Gain” in the
TETRA Parameters tab should be set to a loss of 1dB.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 7of 57
2Connections and Hardware Installation
2.1 Mechanical Details
The TTS-2000A housing is built into a compact crushproof and dustproof Pelicase.
Inside the case is an aluminum panel including the on/off-switch and 4 LED, displaying
the power status, the operation display, a blue "TETRA"-LED, which shows the
registration to the TETRA network and a “Charge”-LED, which is off when not
charging and red when charging.
The power / charger plug and the TNC antenna plug are located on the front of the
Pelicase. The power supply can range from 12 to 24 VDC with a tolerance of about
+/- 20%. Once power is provided, the TTS-2000A will charge its internal battery in
both cases: if operating or turned off.
2.2 Dimensions
The dimensions of the TTS-2000A are as follows:
232mm x 192mm x 111mm

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 8of 57
2.3 Power Supply Input and Battery Charging
The required supply voltage (12-24 VDC +/-20%) is connected either by the wall plug
power supply or by the car charger. Both cables are included in the package.
Once power is applied, the TTS-2000A can be operated. Also the internal battery will
be charged and keeps being charged.
The "Charge" LED will indicate whether the battery is charging (continuously on) or is
fully charged / kept in standby (off or flashing).
If you connect the power source with a full battery the "Charge" LED will stay off.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 9of 57
3TTS-2000A Quick Setup Guide
"# $%&!'(!)*!+((,%!-.'*%/!+001'*&!1*!&2%!-3)4!5-*-!
6# $%&!'(!)!7),-4!89)-,!)44:%//!1*!&2%!-3)4!5-*-;!<1'!=-,,!*%%4!-&!&1!/%*4!&2%!4)&)!&1!
>1'!3?@5)0!,)&%:!
A# B1=*,1)4!&2%!+((C/#!D:19!&2%!+((!$&1:%;!E2%*!>1'!&>(%!-*!F3-0-1:G:1/H!-*&1!&2%!
/%):02!D-%,4I!>1'!=-,,!D-*4!),,!3-0-1:G:1/!)((,-0)&-1*/;!
J# .':*!1*!&2%!..$K6LLL+;!8*/':%!&2)&!>1'!2)7%!)*!)*&%**)!01**%0&%4!&1!-&!
M# N*!&2%!-3)4!5-*-!G1!&1!$%&&-*G/!KO!E-P-!!)*4!/%,%0&!&2%!..$K6LLL+!E-P-;!C.2%!E-P-!
*)9%!4%(%*4/!1*!&2%!$%:-),!Q'9R%:!1D!&2%!..$K6LLL+!-*!0)/%!>1'!2)7%!91:%!&2)*!
1*%#!
S# N*0%!/%,%0&%4I!0,-0T!1*!&2%!,-&&,%!-*D1:9)&-1*!F-H!1*!&2%!:-G2&!/-4%!)*4!0211/%!F$&)&-0H!
'*4%:!&2%!&)R!F?1*D-G':%!U3H;!V%:%!02)*G%!&2%!U3K)44:%//!&1!"W6;"SX;L;"LL!)*4!&2%!
/'R!*%&!9)/T!&1!6MM;6MM;6MM;L;!!
Y# N(%*!&2%!..$K6LLL!+((!C?K)((#;!F..$K6LLLH!/21',4!R%!:%4!D1:!)!D%=!/%01*4/I!&2%*!
&':*!G:%%*!)*4!%7%*&'),,>!R,)0T;!.2)&!9%)*/!&2)&!&2%!-3)4!-/!01**%0&%4!&1!&2%!E-P-!
1D!&2%!..$K6LLL+;!3,%)/%!R%!)=):%!&2)&!&2%!E-P-!$>9R1,!=-,,!*1&!R%!7-/-R,%!-*!&2%!
&1(!,%D&!01:*%:!)&!)*>!&-9%;!!
X# Q1=!0,-0T!1*!&2%!F.8.Z+!$%&&-*G/H!.)R!-*!&2%!R1&&19!9%*';!V%:%!>1'!0)*!/%%!>1':!
(':02)/%4!.8.Z+!D:%['%*0-%/;!Q1&%!&2)&!)44-&-1*),!D:%['%*0-%/!0)*!R%!(':02)/%4!)&!
)!,)&%:!(1-*&!-*!&-9%;!
W# <1'!=-,,!*1=!2)7%!&1!D-,,!-*!&2%!5??!C51R-,%!?1'*&:>!?14%#!)*4!5Q?!C51R-,%!
Q%&=1:T!?14%#I!&2%!P:%['%*0>!)&!=2-02!&2%!..$!/21',4!/&):&!/0)**-*G!)*4!&2%!$0)*!
Z)*G%!-*!?2)**%,/!C.2%!9)\!)91'*&!1D!/0)*!02)**%,/!-*!JLL#;!E2%*!%*&%:-*G!&2%!
$&):&!$0)*!D:%['%*0>I!%*/':%!&2)&!>1'!9-*4!&2%!offset]!P-*4!1'&!-D!>1':!*%&=1:T!2)/!
)*!1DD/%&!)*4!%-&2%:!&>(%!-*!&2%!:-G2&!/&):&!D:%['%*0>!1:!,%&!&2%!..$K6LLL+!41!&2%!
=1:T!D1:!>1'!R>!0,-0T-*G!1*!&2%!:-G2&!1DD/%&!'*4%:*%)&2!&2%!$0)*!Z)*G%;!
"L#.2%!..$K6LLL+!*1=!2)/!&1!:%/&):&!/1!(,%)/%!=)-&!'(!&1!SL!/%01*4/!D1:!-&!&1!
F:%G-/&%:H!&1!&2%!G-7%*!*%&=1:T;!ND!01':/%!&2%!..$!*%7%:!:%),,>!:%G-/&%:/!&1!&2%!
*%&=1:T!C&2%!:%)/1*!=2>!>1'!41!*1&!*%%4!)*!U$$U#!R'&!-&!2)/!&1!/-9',)&%!)!
:%G-/&:)&-1*!)*4!&2)&!&)T%/!'(!&1!1*%!9-*'&%;!
!
3,%)/%!*1&%^!!
+,=)>/!41!'(4)&%/!=2%*!&2%>!)((%):!CR1&2!-3)4!)*4!..$K6LLL+#;!8/(%0-),,>!D1:!&2%!
..$I!&2%:%!01',4!R%!)!0:-&-0),!$&)0TI!B$3I!55U!1:!P-:9=):%!'(4)&%!&2)&!01',4!%-&2%:!
D-\!)!R'G!1:!/-9(,>!%*2)*0%!>1':!..$!%\(%:-%*0%;!+,=)>/!41=*,1)4!&2%!,)&%/&!
7%:/-1*/!D:19!&2%!+((!$&1:%!)*4!)D&%:!:%/&):&-*G!&2%!+((I!02%0T!D1:!&2%!F'(4)&%H!.)R!
1*!&2%!R1&&19!1D!&2%!$0:%%*!)*4!'(4)&%!)001:4-*G,>;!<1'!=-,,!2)7%!&1!2)7%!&2%!..$K
6LLL+!01**%0&%4!&1!(1=%:!=2%*!>1'!41!&2%!'(4)&%/;!Q8_8Z!'*(,'G!-&!R%D1:%!&2%!
'(4)&%/!):%!41*%;!
!
If you have purchased more than one application: Only one application can run at a
time. So always close all unused applications to avoid confusion. To close Apps on the
iPad Mini, double click on the home button and swipe the App towards the top of the
screen.
Always double check if you are connected to the right WiFi. The TTS App will let you
know if you are not connected to the required WiFi.
!

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 10 of 57
4Starting Procedures
4.1 Preparing the Set
Before the set is ready to operate, some preparation has to be made. This preparation is
mainly the installation of the antenna.
The antenna must be connected to the TNC connector located at the front of the
Pelicase. Any antenna, which is connected to the TTS-2000A, needs to match the
operating frequency range of the network that will be monitored.
In case of usage in a car it is recommended to select an antenna with a magnetic foot to
fix it on the car’s roof. A magnetic antenna is included in the package.
Once the set is used in an environment where power supply is available you may
connect the power to the TTS-2000A to ensure the seamless operation and keep your
battery charged.
Also ensure that the iPad Mini is charged or that a power supply/charger is attached to
it.
4.2 Powering the Set
To supply the TTS-2000A with power there are two methods available:
1. Use the in-car cigarette lighter lead adapter to power the case while driving in a
vehicle. Plug the connector into the intended jack at the front of the Pelicase.
2. To use a common AC power supply an additional adapter is provided. The
device facing connector must be plugged into the intended jack at the front of
the Pelicase.
Ensure that your iPad is properly charged or connect a power
supply to the iPad.
A short (about one second) press on the “On/Off” button on the front panel switches on
the TTS-2000A. Once the TTS-2000A is turned on, the "Pwr"-LED and the "OK"-Led
will light up. The TTS-2000A needs some seconds to start the internal WiFi access
point to connect to the iPad.
One can see that the TTS-2000A is connected to the iPad in the main screen of the TTS
app.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 11 of 57
4.3 Connecting the WiFi to the TTS-2000A
Once the TTS-2000A is switched on, it will provide a WiFi access point with the name
"TTS-2000_xxxx", whereas "xxxx" is the serial number of the TTS-2000A.
The iPad must be connected to this Access point. The password is "picologo" by
default.
Once the TTS-WiFi is selected, the IP data must be entered statically. Click on the blue
information “i” next to the Access Point Wifi to get to the screen below. Ensure that you
click on the “Configure IP” tab and choose “Static”. We recommend setting the iPad to
the IP address 192.168.0.100 with net mask 255.255.255.0. If leaving the "Router" entry
empty, you will be able to use the Internet in parallel with the link to the TTS-2000A if
a SIM card with a data plan is inserted (SIM card is not included in the package).
Note that the WiFi symbol will not appear in the top status row of the
iPad as the TTS-2000A does not provide Internet connectivity to the
iPad.
4.4 Switching off
The TTS-2000A will automatically switch off once the iPad application is closed or if
there is no connection to the iPad application for at least 5 minutes. However, if you
want to avoid the auto power off, you can go to the “TETRA Settings” tab in the TTS
applications and turn off the switch “Auto Power Off” in the right lower corner of the
screen.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 12 of 57
If the TTS-2000A is supposed to be switched off, press and hold the "On/Off" button
until the green "OK" LED is off, then release it. All LED's should switch off after this.
4.5 iPad (iCloud) account settings and app updates
The TTS-2000A app has to be downloaded from the App Store before using the TTS-
2000A. Please use an existing Apple Account or create a new one in order to be able to
download the App(s).
Downloading the App from the AppStore also ensures that updates are delivered to the
iPad automatically. Therefore the iPad should be connected to the Internet from time to
time to check updates from the AppStore.
The TTS-2000 main app also carries possible firmware updates for the TTS-2000A and
the TETRA radio core.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 13 of 57
5TTS-2000A C-App functions
5.1 iPad screens
There are seven screens available in the iPad app:
•The main screen / Main
•The network neighbor cell display screen / Neighbors
•The network Information Screen/ Network Information
•The network parameters and antenna setting screen / TETRA Settings
•The calibration screen / Calibration
•The map screen /Map View
•The Update of the TETRA Modem Screen/ Update
There is also a section in the iPad settings for the basic TTS-2000A app configuration.
5.1.1 The main screen / Main
The main screen is the operating screen for survey operations. Big symbols ensure that
the most important data can easily be seen during a test drive in a car.
Important:
The street traffic must always focus your attention! If the
drivers observe the iPad, they should only do so if the car is
parked.
We, the Funk-Electronic Piciorgros GmbH are not responsible
for any harm or damage caused by using the TTS-2000A in
cars, in other vehicles or while walking.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 14 of 57
Information “i” (upper left corner):
The user can tab and hold on the “i” to get the most important information on all the
screens of this app.
RSSI (Serving Cell):
The RSSI display shows the current field strength of the serving cell the TTS-2000A is
registered to. A basic colorization gives a rough overview if the reception is good (red),
acceptable (yellow) or poor (green). (Color map is configurable in the main settings for
the application)
Channel:
This number is the radio channel number of the cell the TTS-2000A is registered to.
Next to the word channel, the user can see a “tab button”. Here one can click in order to
change the Channel number to the Frequency of the serving cell.
LAC:
This is the LAC (Location Area Code) number of the cell the TTS-2000A is
“registered” to.
Longitude / Latitude:
This is the GPS data of the actual position, provided by the iPad.
Therefore the iPad should be located at a position with good sky view and near to the
TTS-2000A Pelicase to ensure accuracy of the position data (i.e. in the same car as the
iPad, carried by the same person etc.).
BER value:
This value shows the calculated Block Error Rate in percent.
Neighbor Cells:
Shows the amount of neighbor cells reported for given serving LAC.
Start / Stop:
This button starts or stops the survey. A survey can be stopped anytime and continued
later, even if the TTS-2000A and/or the iPad were switched off in the meantime.
Email (@):
Pressing this button generates an outgoing email on the iPad, containing the latest
survey data in .csv format.
CLR DATA:
This button clears all the stored survey data in the iPad. A security pop-up dialog needs
to be confirmed for additional security. Once the data is cleared, it cannot be restored.
Make sure that the data has been sent out and been received on
the destination email account before clearing the stored data!

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 15 of 57
5.1.2 Status line
The status line at the bottom of the page displays the status of the most important
features. All fields are color coded with red indicating a warning and black for normal
operation.
TETRA:
This word will appear in black color when the TTS-2000A is registered to the TETRA
network. It will appear in red color if the registration to the network is lost or not yet
established.
GPS:
This reflects the availability of the GPS position information in the iPad. Once the word
is red, there is no proper position information available. A yellow GPS indicates a low
accuracy. If the GPS accuracy is not good enough for sufficient results, if possible
change the location of the iPad to have a clear view to the sky.
TTS-2000:
This is the status of the WiFi link between the iPad and the TTS-2000A. If the word is
in black color, the link is up and running. If the word is in red color, there is no WiFi
link between the iPad and the TTS-2000A.
A green "TTS-2000" means that the WiFi connection has been established, but the data
could not been retrieved from the TTS-2000A yet. This might happen if i.e. a second
running TTS app is blocking the communication. Only one TTS app can be open at the
same time. Always close unused applications.
Without an active link (i.e. if the app on the iPad has not been started, or has been
turned off on purpose) the TTS-2000A will automatically switch off after five minutes
to save power.
CAL:
One year after the last calibration this word turns red to remind the user to recalibrate
the TTS-2000A.
The customer can do the calibration if a calibrated TETRA measurement device (like an
Aeroflex TETRA test set) is available. As an alternative the TTS-2000A can also be
sent to Piciorgros GmbH to let them do the calibration (please contact us for pricing and
further information).
Even if the last calibration has exceeded a year and the status is shown red,
measurements are possible. But to ensure the most accurate measurement values, the
TTS-2000A should be recalibrated in time.
ANT:
The quality of the connected antenna influences the measurement values. The gain or
loss can be defined at the parameters page.
Counter:
The amount of currently measured values is displayed at this location.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 16 of 57
Battery Level:
Battery level of the TTS-2000A, a red lightning symbol indicates connected external
power supply and charging of the battery. Each green bar indicates approximately one
hour of operations (operating time highly depends on individual battery handling and
environmental influences). If you tab on the battery symbol in the right lower conrner,
you can also view the voltage left over in the battery. However, once the TTS is fully
charged the lightning symbol will disappear and the charge LED on the TTS will go and
stay off as long as the charger is connected to the TTS.
5.2 The network neighbor cell display/ Neighbors
This view can be used to observe the neighbor cells during the test drive. On the left
side the serving cell is displayed as it is in the main view. On the right hand side the
three strongest neighbor cells are displayed.
The user can click on the “tab” button next to the upper neighbor to change the LA to
the channel number or frequency of that given neighbor.
Here one can see that always the strongest cell is colored, even if it is not the serving
cell as can be seen in the example below. If this is the case, one can assume that most
likely a cell reselection will take place soon.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 17 of 57
5.3 Network Information
On the left hand side of the screenshot below one can see the information entered prior
to the simulated registration process. Below this information the latest reported
information from the selected carrier (serving cell) are listed.
In the middle column one can see some basic networks information and settings
broadcasted from the serving base station.
On the right hand side, the user can see the TETRA SYSINFO reported from the
serving cell. All supported features are shown in green color whereas unsupported
features are displayed in grey.
For a more detailed explanation and definitions, see below the image.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 18 of 57
5.3.1 Serving Cell Information
RDC
RDC = Radio Downlink Counter. When a radio is attached to a serving cell it is
continuously monitoring the quality of the downlink signal it is receiving from the base
station. When doing this it maintains the Radio Downlink Counter. The starting value
for this counter is announced by the cell in the RADIO_DOWNLINK_TIMEOUT field
of the cells SYSINFO messages.
If the radio is unable to decode the Access Assignment Channel (AACH) in a downlink
message, the RDC is decreased by N ×N.210 (where N.210 is a constant which defines
the quality threshold for the MS which in the case of the TTS is set always 4, and N is
equal to the number of successive timeslots the radio is receiving and decoding, so in
the TTS this is always 1).
If the radio successfully receives and decodes the AACH in a message, the RDC shall
be increased by N but shall not be increased above the value of the announced
RADIO_DOWNLINK_TIMEOUT.
Radio downlink failure is declared when the RDC falls below 0. If this happens, the
radio will perform an immediate a cell reselection. The value of N.210 controls the
AACH message error rate threshold at which radio downlink failure occurs, so for
example, in the TTS N.210 = 4, so there is a ratio of 4 to 1 between failure and success
counting to give a decreasing RDC. This will occur when the message error rate
exceeds 20 %. Therefore, a continuous message error rate greater than 20 % will cause a
radio downlink time-out and a cell reselection.
C1 value
The C1 value is known as the Pathloss and is calculated for the serving cell by the
following formula,
C1 = RSSI – RXLEV_ACCESS_MIN - Max(0, MS_TXPWR_MAX_CELL - Pms)
where:
RSSI = the averaged receive signal level at the MS
RXLEV_ACCESS_MIN = the minimum permissible receive level allowed at the MS
(announced in the cells SYSINFO message, and displayed as ‘Radio Access Level’
under Network Information by the TTS)
MS_TXPWR_MAX_CELL = the maximum MS transmit power permissible in this cell
(announced in the SYSINFO message from the cell and displayed under Network
Information by the TTS)
Pms = the maximum transmit power of the radio. Since the TTS does not transmit, this
value is always assumed to be the same as the MS_TXPWR_MAX_CELL being
announced by the cell. All parameters are in dB.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 19 of 57
5.3.2 Network Information
Secondary Carrier
This parameter display the number of Secondary Control Channels (SCCH) which are
being announced by the current serving cell.
Radio Access Level
This parameter displays the RXLEV_ACCESS_MIN value being announced in the
current serving cell in its SYSINFO messages. It is the minimum permissible receive
level allowed at the MS and is used in the C1 calculation
MS Tx Power Max
This parameter displays the MS_TXPWR_MAX_CELL being announced by the current
serving cell in its SYSINFO messages. It is the maximum MS transmit power
permissible in this cell and is used in the C1 calculation.
Slow Reselect Threshold/Hysteresis and Fast Reselect Threshold/Hysteresis
These parameters are all announced by the current serving cell in its Neighbour Cell
broadcast messages and are used by an MS during cell reselection decisions. The
decisions taken by the TTS during cell reselection are described in the next section.

Funk-Electronic Piciorgros GmbH TTS-2000A documentation
V1.20 - Page 20 of 57
5.4 The TETRA parameters and antenna setting screen
The TETRA parameters screen allows the configuration of the parameters necessary to
simulate the registration to the TETRA network. As the TTS-2000A does not need to be
registered to the network, there is no need for an ISSI to be provided for the device. The
TTS-2000A does not transmit meaning it does not generate any traffic in the network.
IN order for the TTS to start the simulated registration process the user has to enter the
MCC (Mobile Country Code), the MNC (Mobile Network Code) and the start
frequency with a scan range (amount of channels that should be scanned). After the user
has entered the frequency, they can see if they have entered an offset or not in the Freq.-
Offset field. Here the bold field will be the one calculated by the TTS due to the entered
information. However, one can also go vice versa. If the user is not sure about their
exact start frequency, but knows which offset they are using, they can simply enter a
frequency without an offset and then click on the correct offset field, which will lead to
a calculation of the iPad for the correct start scan frequency.
As soon as a value is changed, the TTS-button underneath the TETRA Scan Parameters
will be activated and clickable to re-program the TTS (modem) with the new settings.
In the Available Frequencies section, one can see which TETRA frequency bands have
been activated for this given TTS. The purchased/activated frequencies are shown in
black color, the ones that have not been activated but can be purchased at a later point in
time are greyed out. The user can always add new frequencies after receiving the TTS.
They will be sent an activation code, which they will have to enter in the settings
section of the iPad (see Settings for more info). To see all activated features and
applications, please go to the Update tab in the Application. Here the user can see which
features have been bought and which ones are still available for purchase.
In the Antenna section, the gain or loss of the used antenna can be selected in 1dB steps.
On the gain side there may be a possible gain of the used antenna, on the loss side will
be the used antenna cable. This enables the user to match the receiving conditions of the
TTS with a given handset.
The total sum of gain and loss should be entered on this page to ensure correct
measurement values.
If you close the app or turn off the TTS, and restart them both later, the TTS will
remember the last settings (MNC, MCC, Start Frequency and Scan Range) and
automatically reconnect to the last network it was connected to.
In case you do not want the TTS to automatically turn off after five minutes, when not
connected to the iPad, you may switch off the “Auto Power Off” button. Please be
aware that the TTS-2000A will then stay on until the battery dies completely. Piciorgros
is not responsible for lost data.