Tetra Site Survey Test Set
TTS-1000
The TTS-1000 is a “Ready to Go” Tetra site survey test set that can be used to measure the RF field strength of a Tetra Infrastructure Base Station simultaneously with all reported neighbour cells. It is built into a compact Pelicase Suitcase and can be operated stand alone, without the requirement for an external PC.
Power is provided to the unit using either an incar cigarette lighter lead, directly from the car battery, or optionally with a 12Volt to 24 Volt power supply.
A number of accessories, such as cigarette lighter cable, GPS receiver, GPS receiver extension cable, magnetic antenna, memory stick and analysis software are part of the shipment.
Device Operation
After the TTS-1000 has been powered on, the Tetra network parameters and the operating modes can be confi gured using the touch screen interface. These include the Tetra network frequency, the number of scan channels, MCC, MNC, the device ISSI and the distance in meters between each measurement.
As the measurement is not only taken from the base station the device is logged to, but also from all reported neighbour cells, the cell overlap can be easily checked, and in the unlikely event of a complete base station shut down the remaining coverage can be analysed.
Once the measurements have been started, the GPS coordinates, the received field strength as a –dBm value, the number of reported base stations and the number of available satellites and the distance until the next measurement point are displayed. Up to 9999 measured data sets will be stored a standard csv-file, including a record number and a time stamp.
After completion of the survey, the data can be copied to a memory stick 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.
