Aries Reference Manual Section 1 – Overview Aries Autonomous TETRA Network Performance Measurement Tool User Guide and Reference Manual RSI Kingswear House High Street Cranbrook Kent TN17 3EW Tel: 0208 123 0028 Email: sales@rsi-uk.com www.rsi-uk.com Issue 2.10 Nov 2014 © Copyright 2009-2014 Radio Systems Information Ltd.
Aries Reference Manual Section 1 – Overview Table of Contents ARIES ...............................................................................................................................1 AUTONOMOUS TETRA NETWORK................................................................................1 PERFORMANCE MEASUREMENT TOOL ......................................................................1 USER GUIDE AND REFERENCE MANUAL....................................................................
Aries Reference Manual Section 1 – Overview 4.3 Configuring Probes .................................................................................................................. 53 4.2.1 Adding a new probe............................................................................................................53 4.2.2 Editing a probe ...................................................................................................................54 4.3.3 Probe configuration ........................
Aries Reference Manual 1 Overview 1.1 What is Aries? Section 1 – Overview Aries is an autonomous TETRA network monitoring tool that provides real-time performance statistics. It consists of many small probes that connect to the back of existing TETRA radios as well as software that runs on a web server. As the vehicles with the TETRA radios and probes travel across the network, data is sent from the probes back to a central web server so that a picture of network performance builds up.
Aries Reference Manual 1.2 Section 1 – Overview System Overview Aries is shown diagrammatically in figure 1 below: TETRA NETWORK GPRS INTERNET Aries Server Internet Figure 1: Aries overall configuration Aries probes are deployed in vehicles across the TETRA network service area ensuring that each base site is monitored at least once a day and preferably much more frequently for critical base sites.
Aries Reference Manual 1.3 Section 1 – Overview Data Security The Aries data paths and the security measures used to protect the data are shown in figure 2 below. TETRA Aries Probe Probe data sent by GPRS to server as coded CSV. Option for end-to-end encryption with DES64 algorithm.
Aries Reference Manual 2 Section 2 – Viewing and Analysing Data Viewing and Analysing Data Aries produces maps, graphs, tables and automatic warnings with all parameters being configurable. An intuitive user-interface makes the system easy-to-use without losing the power of advanced analysis features. Analysis is carried out on live data as it is received from the probes, e.g. showing the last 12 hours, or on historical data, e.g. showing last month performance compared to this month.
Aries Reference Manual Section 2 – Viewing and Analysing Data Figure 5: Changing the password If the Password Complexity Rules option has been selected for this network then the password must meet the following rules: • Minimum 8 characters • At least 1 uppercase (A - Z) • At least 1 lowercase (a - z) • At least 1 numeral (0 - 9) • Must be different to previous 3 passwords In addition passwords will expire after 90 days with a warning email being sent to the user at 14, 7 and 1 days notice before the auto
Aries Reference Manual 2.3 Section 2 – Viewing and Analysing Data Selecting Data for Analysis Aries data is displayed using maps, graphs, tables and warnings. For all of these methods it is possible to filter the data first so that only a part of the data is displayed. The data may be filtered by date & time, Probe, Base Site, Areas and a general value filter. The filters are selected from the relevant tab on the configuration form. 2.3.
Aries Reference Manual 2.3.3 Section 2 – Viewing and Analysing Data Filter by Probe Data from all or a single probe may be selected as shown below: Figure 8: Filter on Probe Note that at least one probe must be selected. 2.3.4 Filter by Base Site Data from all or a selection of base sites may be selected as shown below: Figure 9: Filter on Base Site Note that having all base sites unselected means that there is no filtering on base site so that all data is displayed.
Aries Reference Manual 2.3.5 Section 2 – Viewing and Analysing Data Filter by Area Data from a specific area may be selected as shown below. Figure 10: Filter on Area Note that having all areas unselected means that here is no filtering on area so that all data is displayed. See section 2.4 for more information about areas. The analysis time will be faster if no Areas are selected. Radio Systems Information Ltd.
Aries Reference Manual 2.3.6 Section 2 – Viewing and Analysing Data Filter Events General filters may be created that are applied to either events or as a Custom filter to any of the probe parameters. Multiple Custom filters may be created. Figure 11: Events Filter See section 2.4 for an explanation of the events. Radio Systems Information Ltd.
Aries Reference Manual 2.3.7 Section 2 – Viewing and Analysing Data Filter Custom The following parameters may be selected for the Custom filter: RSSI LAC Vehicle Speed C1 BN RSSI BN C2 Call Setup Time Frequency Packet Data Download Time Figure 12: Filter Custom Radio Systems Information Ltd.
Aries Reference Manual 2.4 Section 2 – Viewing and Analysing Data Using Maps Aries includes a user friendly map engine to display the probe data in a map format as shown below. Figure 13: Example map showing Aries events superimposed on top It is possible to select the preferred mapping source by clicking on the blue icon in the upper-right of the window.
Aries Reference Manual Section 2 – Viewing and Analysing Data Events from the probe are shown on the map as icons: Monitor event, rate configurable for each probe, see section 4.2.3 Call Setup Success Call Setup Fail Uplink Speech Sample. Samples with suspect scores are shown as ‘Marked’ and may be excluded from the analysis. See section 2.5 Downlink Speech Sample. Samples with suspect scores are shown as ‘Marked’ and may be excluded from the analysis. See section 2.
Aries Reference Manual Section 2 – Viewing and Analysing Data Clicking on any icon on the map will show a pop-up box with full details about the event as shown below. Clicking on handover events displays additional Cell Broadcast information about the base site (only available if the probe is connected to a Motorola terminal). Click on the frequency to show other Base Sites using this frequency.
Aries Reference Manual Section 2 – Viewing and Analysing Data Best Neighbour Cell has dotted thick line Serving Cell has solid thick line Other Neighbour Cells have thin dotted line Figure 16: Lines drawn from the data event to the serving and neighbour cells Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data Clicking on a base site icon also displays a pop-up information box that includes the last collected Cell Broadcast information as well as the Neighbour Cell information as shown below: Frequencies coloured red indicate that this is not in the Planned Frequency list for this Base Site Frequencies highlighted orange indicate that two or more neighbours are using the same frequency Figure 17: icon pop-up info box for base sites Figure 18: Lin
Aries Reference Manual Section 2 – Viewing and Analysing Data Frequencies may be displayed in MHz or channel numbers. The choice is set by the Sysadmin user for each network (see section 2.5). The Planned Frequencies for a base site are defined by the user however the Used Frequencies and Neighbour Cell frequencies are collected by the probe and are updated for each site as new data is gathered.
Aries Reference Manual Section 2 – Viewing and Analysing Data Clicking the ‘Configuration’ button brings up the following form: Figure 20: Map Configuration The ‘Map Update Rate’ selection allows the map to be updated automatically as new data is received in real-time from the probes every 10 seconds, 60 seconds or 5 minutes or not at all. The ‘Follow the probe’ selection allows the map to pan automatically so that a specified probe is kept in the centre of the screen.
Aries Reference Manual 2.4.1 Section 2 – Viewing and Analysing Data Icon Colour Icons may be coloured by one of the following parameters: Parameter RSSI C1 BN RSSI BN C2 Call Setup Time LAC BN LAC Vehicle Speed Handover Time IP Data Test Time Units dBm dB dBm dB msec Km/h msec msec Up to 3 thresholds (4 colours) may be defined for all of the parameters except LAC which takes the colour from the Admin Site Table – see section 4.2. RSSI is measured in units of dBm.
Aries Reference Manual Section 2 – Viewing and Analysing Data Figure 22: Example of icons coloured by RSSI Radio Systems Information Ltd.
Aries Reference Manual 2.4.2 Section 2 – Viewing and Analysing Data Icon Type The tickbox next to each icon type on the Filter Events tab specifies which icons are displayed on the map. Figure 16 below shows an example of a map showing only handover events (excessive handovers in an area can sometimes indicate network configuration problems). Figure 23: Example of displaying only handover events coloured by LAC Radio Systems Information Ltd.
Aries Reference Manual 2.4.3 Section 2 – Viewing and Analysing Data Square Km Analysis The square km analysis provides a method of analysing the data that prevents the results being biased by taking too many samples in one location. The analysis process creates a grid of 1km squares across the survey area and then allocates each sample to the relevant square.
Aries Reference Manual 2.4.4 Section 2 – Viewing and Analysing Data Failure Simulation Mode Base Sites may be put into Failure Simulation mode – this is where the serving base site for an event is replaced by the next best serving base site to simulate the resulting coverage if the main base site were to fail. This type of analysis only affects the results displayed on the map – it does not affect the results for the Graph, Summary, KPI or Neighbour Analysis. Radio Systems Information Ltd.
Aries Reference Manual 2.5 Section 2 – Viewing and Analysing Data Using Graphs Aries provides powerful graphing functionality that allows multiple graphs to be created and updated in real-time as new data arrives at the server.
Aries Reference Manual 2.5.2 Section 2 – Viewing and Analysing Data Summary Type Graphs The following parameters may be chosen for the X Axis and Y Axis: X Axis Time Time of Day LAC Probe ID Area Y Axis RSSI min/avg/max Call Setup Time min/avg/max Grade of Service All Events Total Call Setup Fail Total Call Drop Total No Service Total Handover Total If ‘Time’ is selected for the X Axis then it is possible to select a sample period of 15mins, 30mins, 60mins, 1 day.
Aries Reference Manual 2.6 Section 2 – Viewing and Analysing Data Using the Table Aries presents the raw data from the probes on the tabular page as shown below. Figure 31: Tabular results Results may be ordered by time (i.e. first event or last event is top of page 1) by clicking on the ^ icon in the Time column. The Tabular results may be exported to a comma separated text file by clicking the ‘Export Data’ link. There is an option to compress the exported file into a standard zip file format.
Aries Reference Manual 2.7 Section 2 – Viewing and Analysing Data Using Warnings Aries is capable of monitoring many parameters and then sending a warning SMS and/or email when any parameter goes above or drops below a threshold. The Aries web page for configuring the warnings is shown below. Figure 33: Warnings Warnings are configured by either clicking on ‘Add Warning’ to create a new warning or on ‘Configure’ to edit the parameters. This displays the form shown below. Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data Figure 34: Warnings configuration The following parameters should be set for each warning: Parameter Warning Text Comment Enter the text that will be sent in the SMS message when the warning is triggered Select the time period for checking the parameter Check Period Time Delay sending warning after GSM Number Email Warning Type Select the time period that must elapse after a warning before another warning for the same parameter is sent
Aries Reference Manual Section 2 – Viewing and Analysing Data - Square km this takes the output from the square km analysis and creates a warning if there are too many failed squares - Graph this takes the output from the graph settings and determines if any value exceeds or falls below the threshold. If a summary graph with min/avg/max values is used then it is the average value that is compared against the threshold. For a summary graph with all events then every event is compared against the threshold.
Aries Reference Manual 2.8 Section 2 – Viewing and Analysing Data Using Summary Aries provides a summary screen showing the status of individual base sites, areas or probes – this display is ideal for an at-a-glance screen showing the overall status of the network. If the base site (or area or probe) passes a number of Key Performance Indicators (KPI) then the item is coloured green indicating a pass. If any of the KPIs is a fail then the item is coloured red indicating a possible problem.
Aries Reference Manual Section 2 – Viewing and Analysing Data Figure 36: Summary configuration form for base sites and areas The configuration form for the probes summary includes an additional parameter ‘No Service Events count less than’ as shown in the form below: Figure 37: Summary configuration form for probes Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data In addition it is possible to specify the tab caption for the probes summary analysis. The 2 tabs are normally called ‘Probes Mobile’ and ‘Probes Static’ however there is no difference between the two tabs and they can be used in other ways if preferred. The filter to specify static probes and mobile probes for each tab must be set by the user.
Aries Reference Manual 2.9 Section 2 – Viewing and Analysing Data Using KPI The results for the full set of KPIs is available on the KPI screen as shown below. Figure 39: KPI results screen The KPI results may be exported to a comma separated text file by clicking the ‘Export Data’ link. The KPI are configured from the configuration form shown below. Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data Figure 40: KPI configuration form Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data 2.10 Using Neighbour Analysis There are a number of different built-in analysis methods for detecting neighbour cell problems. Missing Neighbour Cells: this lists base sites that are within a specified distance of a base site but are not in the neighbour cell list. There may be a good reason for this, for example the base site may be sectored.
Aries Reference Manual Section 2 – Viewing and Analysing Data Unused Frequencies: this lists base sites where a frequency is in the Planned Frequency list but is not in the Used Frequency list. Figure 43: Unused Frequencies Possible Duplicate LAC. This lists base sites where an event has been logged more than a specified distance from the serving base site. This may indicate handover problems with cell boundaries being dragged, or it may indicate a possible duplicate LAC being assigned in the network.
Aries Reference Manual Section 2 – Viewing and Analysing Data Incorrect Neighbour Frequency: this lists base sites where the neighbour frequency being broadcast does not match any frequency in the Planned or Used frequency lists of the specified base site. Figure 45: Incorrect Neighbour Frequency Asymmetric Neighbour Cells: this lists base sites which do not include a neighbour cell which does itself list the specified base site. Figure 46: Aysymmetric Neighbour Cells Radio Systems Information Ltd.
Aries Reference Manual Section 2 – Viewing and Analysing Data Adjacent Channel Analysis: this lists base sites within a specified distance using an adjacent channel (i.e. is +/- 1 channel). This is useful to help detect possible interference problems where adjacent channels are being used too close to each other. Figure 47: Adjacent Channel Analysis Radio Systems Information Ltd.
Aries Reference Manual 3 Section 2 – Viewing and Analysing Data Voice Quality Testing Digital radio networks use speech vocoders and require sophisticated measurement techniques using human speech samples to provide a true and repeatable Mean Opinion Score (MOS). Aries achieves this by using a digital signal processing algorithm with an auditory model that takes into account the psychophysical properties of human hearing and the subjectivity of the distortion in the received signal.
Aries Reference Manual 3.1 Section 2 – Viewing and Analysing Data How PESQ works PESQ measures one-way, end-to-end voice quality and is designed for use with intrusive tests: a signal is passed through the system under test, and the degraded output is compared with the input (reference) signal. The test signals must be speech-like, because many systems are optimised for speech, and respond in an unrepresentative way to non-speech signals (e.g. tones, noise, ITU-T P.50).
Aries Reference Manual 3.2 Section 2 – Viewing and Analysing Data Performance Early models for quality assessment (for example, P.861 PSQM, P.
Aries Reference Manual 3.3 Section 2 – Viewing and Analysing Data Which PESQ? Aries provides a choice of PESQ results: either P.862 (known as PESQ) or P.862.1 (known as PESQ MOS-LQO). P.862 (PESQ) provides results on a MOS-like scale ranging from -0.5 to 4.5. P.862.1 (PESQ MOS-LQO) provides a better match to the true Mean Opinion Score scale of 0 to 5. The basic analysis is the same for both results, with the results simply mapped to the MOS scale in a different way. Radio Systems Information Ltd.
Aries Reference Manual 3.4 Section 2 – Viewing and Analysing Data Voice Quality Testing using Aries Aries measures voice quality using a normal probe together with a slave probe that is installed at a fixed location. The slave probe uses the same hardware as the normal probe but has different internal software. The slave probe should be installed at a location with excellent TETRA signal strength so that the radio path from the network to the slave probe can be assumed to be perfect.
Aries Reference Manual 3.5 Section 2 – Viewing and Analysing Data Voice Quality Analysis Voice quality samples are displayed on the table and map event pop-up form as shown below: Click to listen to audio sample PESQ results Click to listen to audio sample PESQ results Figure 50: Voice Quality events The PESQ values for P.862.1, P.862 and Audio Level (dB) are displayed for each sample. The sample audio may be replayed by clicking on the loudspeaker icon.
Aries Reference Manual Section 2 – Viewing and Analysing Data The configuration settings for the VQ analysis are shown below: Figure 53: Voice Quality analysis configuration The following parameters may be configured from this form: Parameter Minimum Number of Samples Score Type to use Report Value Threshold value Radio Systems Information Ltd.
Aries Reference Manual 3.6 Section 2 – Viewing and Analysing Data Marked Samples There are several circumstances when voice quality measurement can be affected by factors not directly related to network performance. Aries provides a mechanism for detecting these bad samples and excluding them from the analysis.
Aries Reference Manual 4 Admin Functions 4.1 Configuring Networks Section 3 – Admin Functions This functionality is only available to the system administrator. The Aries server may be configured for use with one or more TETRA networks with users and probes being assigned for use on just one network. This provides a way of completely segregating groups of probes or users perhaps for testing purposes.
Aries Reference Manual Section 3 – Admin Functions Figure 57: Configuring Network parameters The ‘Grid Ref’ parameter is used to specify the mapping system that is used to produce the square km analysis. For the UK this should be set to OSGB. The ‘Frequency representation’ parameter is used to set the method of displaying radio channel frequencies: either in MHz or channel number.
Aries Reference Manual 4.2 Section 3 – Admin Functions Configuring Users This functionality is only available to super admin users and above. The super admin user is able to specify which users are able to access Aries using the Aries web page shown below: Figure 58: Configuring Users Click on either ‘Add User’ to add a new user or on the parameters.
Aries Reference Manual Section 3 – Admin Functions If ‘Force using HTTPS’ is enabled then accessing the Aries server using http://www.xxxxx will be translated to https://www.xxxxx and the browser will display the security icon confirming that communications between the browser and server are now secure. All aspects of the user interface remain the same when using https access however there is a small performance reduction.
Aries Reference Manual 4.3 Section 3 – Admin Functions Configuring Probes This functionality is only available to admin users and above. Probes may be configured, enabled/disabled and have new firmware downloaded all controlled from the Aries web page as shown below: Figure 61: Configuring Probes Probes continually check the server to see if there is a new configuration or software version to download.
Aries Reference Manual 4.2.2 Section 3 – Admin Functions Editing a probe This displays the form shown below: Figure 62: Configuring Probes parameters The key parameters for each probe are the IMEI number and GSM number complete with country code. The colour is used to identify the current location of each probe on the map with a coloured circle.
Aries Reference Manual 4.3.3 Section 3 – Admin Functions Probe configuration To configure the probe click on the word ‘Configure’ in the ‘Actions’ column. This will show the form below: Figure 63: Configuring Probe parameters- showing each tab of the form Radio Systems Information Ltd.
Aries Reference Manual Section 3 – Admin Functions The last known state of the probe is displayed in brackets for each parameter.
Aries Reference Manual Slave Probe Speech Sample for VQ test call TETRA Call Rate TETRA Group Call Number TETRA Call Duration TETRA Call Slot Number Packet Tab TETRA Packet Data Test Rate TETRA Packet Data ftp access parameters TETRA Packet Data file path Section 3 – Admin Functions ‘Two samples in each direction repeated twice’ – VQ test call The slave probe must be defined for VQ test calls Select the required speech sample.
Aries Reference Manual 4.2.5 Section 3 – Admin Functions Probe firmware update To update the probe’s firmware click on the word ‘Upgrade’ in the ‘Actions’ column. The upgrade progress can be seen in the ‘Upgrade State’ column displaying: Version 1 Probe Request is pending Downloading JAR file Downloading JAD file Finished: 900 Success Version 2 Probe Request is pending DWL file sent Finished: Successfully upgraded to V1.5.1 The whole process may take several minutes.
Aries Reference Manual 4.2.6 Section 3 – Admin Functions Manage Audio Files VQ testing can use different speech samples that can be different lengths or languages. It is possible to upload new speech sample files to the server and these will then be downloaded to the probes when starting a new VQ survey. Click on the ‘Manage Audio Files’ link to display the form below: Figure 66: Manage audio files The server can hold many different speech sample files that may then be selected for each probe.
Aries Reference Manual 4.4 Section 3 – Admin Functions Configuring Base Sites This functionality is only available to admin users and above. Base Site locations are displayed on the map symbol and may be coloured differently for each site.
Aries Reference Manual Section 3 – Admin Functions The key identifying parameter for each base site is the ‘LAC’. This is compared to the LAC data reported by the TETRA radio to determine which base site is currently being used. To delete a base site click on the symbol in the main window. If more than one base site has an identical latitude and longitude to other base sites then they are assumed to be sectors of a single base site and are displayed on the map as a single symbol.
Aries Reference Manual 4.5 Section 3 – Admin Functions Configuring Layers The Aries map provides the ability to group Areas into Layers which can then be independently displayed or hidden on the map. This is particularly useful for displaying large numbers of individual Areas, e.g. representing predicted base site coverage areas, where it is useful to be able to display or hide all of them at the same time.
Aries Reference Manual 4.6 Section 3 – Admin Functions Configuring Areas Areas are arbitrary polygons that may be used to filter data. They might be used to group data for a police district or maybe to define an area of poor coverage, or to show the area of predicted coverage for a base site.
Aries Reference Manual Section 3 – Admin Functions Figure 73: Configuring Areas parameters Polygons are defined in a vector KML file that has been created in Google Earth or a similar application. Areas are limited to a maximum of 1000 points and must be a simple area shape with the points defining the perimeter and with no internal boundaries. The area can be set to invisible but will still be available for use in the analysis.
Aries Reference Manual 4.7 Section 3 – Admin Functions Configuring Settings This functionality is only available to the system administrator. System settings are configured from the Aries web page shown below: Figure 75: Configuring System Settings Hide all text on frontpage and add nofollow, noindex metatag: this option is intended to present an anonymous front page so that casual or accidental visitors to the site are given no information.
Aries Reference Manual 4.8 Section 3 – Admin Functions Profile Activity This functionality is only available to the system administrator. The profile analysis activity is shown in realtime on the Aries web page shown below: Figure 76: Profile Activity This screen shows each separate analysis carried out by users as a separate line and includes the processor execution time. The graph shows the total processor analysis time for all profiles in seconds per minutes. The page is updated every 15 seconds.
Aries Reference Manual 4.9 Section 3 – Admin Functions Database This functionality is only available to the system administrator. The Clear Database functionality is shown in the form below: Figure 77: Database cleansing Old data may be deleted from the database to free up space. Select which network to delete from – or all networks – and select the date and time. The selected data will be deleted from before this date.
Aries Reference Manual 5 Probes 5.1 Probe Configuration Section 4 – Probes The Aries probe is intended to connect directly to the interface ports on a Sepura or Motorola TETRA radio terminal as shown below. Figure 78: Probe connection to Sepura TETRA radio terminal Figure 79: Probe connection to Motorola TETRA radio terminal The probe gets power directly for the TETRA radio but it also contains a battery that will keep the probe alive for 30 minutes after power is removed.
Aries Reference Manual 5.2 Version 1 Probe 5.2.1 Specifications Physical Dimensions: GSM Antenna Connector: GPS Antenna Connector: GPRS Modem: Processor: GPS: Battery: Connection to Sepura radio: Connection to Motorola radio: Section 4 – Probes 86mm x 56mm x 26mm not including RF connectors FME (male) silver colour SMA (female) gold colour Quad-Band GSM 850/900/1800/1900 GPRS class 12 Java with 400kB RAM & 1.2MB Flash 16 channel tracking sensitivity –157dBm 2.
Aries Reference Manual 5.2.3 Section 4 – Probes Setting Up New probe Follow these instructions when setting up a new probe: 1) Connect the probe to power and by USB to a PC running hyperterminal or other Comms software 2) Get the IMEI number of the probe by typing the command: AT+CGSN into hyperterminal 3) Enter the probe details onto the server, including the IMEI number and the GSM number 4) Enter these commands into hyperterminal: If using an Orange SIM card: AT^SJOTAP=,"http://www.rsi-aries.
Aries Reference Manual Section 4 – Probes 2 – searching 3 – registration denied 4 - unknown 5 – registered with foreign network Radio Systems Information Ltd.
Aries Reference Manual 5.3 Version 2 Probe 5.3.1 Specifications 5.2.2 SIM Card 5.2.3 Setting Up New Probe 5.2.4 Logging Radio Systems Information Ltd.
Aries Reference Manual Section 4 – Probes 5.4.1 Operation The probe will start automatically when power is applied to the TETRA radio. The probe will send back data to the server after every monitor event or test call. If there is no GPRS coverage in an area, or the server is unavailable for any reason, then the probe will store the data to internal memory instead until it has GPRS coverage again when it will send all of the stored data to the server.
Aries Reference Manual 5.5 Hand-held Probe 5.5.1 Overview Section 4 – Probes Figure 82: Hand-held probe in carry-case The Aries hand-held probe contains a standard V2 probe together with a large battery providing 15 hours of service, an internal GSM/GPS antenna, a Bluetooth function for connecting to external GPS sources and a connection cable for use with Motorola hand-held TETRA radio terminals.
Aries Reference Manual 5.5.
Aries Reference Manual 5.5.4 Section 4 – Probes Indoor Surveying The hand-held probe provides the option for using GPS data from an external source using a Bluetooth link. This can be useful for indoor surveys. One possible external source is an Android smart phone running an app such as ‘Bluetooth GPS Output’, ‘GPS Share BT’ or ‘GPS NMEA Bluetooth Transmitter’.
Aries Reference Manual 5.6 Section 4 – Probes Packet Data Testing The probe may be configured to test Packet Data performance on the TETRA network. The probe attempts to create a Packet Data connection typically every 1 minute or as specified by the user in the probe configuration. The probe will attempt to download a test file using ftp protocol from the server specified in the probe configuration. If the probe is unable to establish an Packet Data connection then an error is reported.
