poland
there are so many diff erent services using the system that they will reach the system capacity. Probably within this year we will increase the capacity of the system, by adding some channels.” Special training in using the radios has been provided for
In the airport’s control room, the duty fi re offi cer makes a call via the TETRA radio
airport staff and also for radio users who work for outside companies operating at the airport. Strict regulations on how to use the radios are in force. However, there have already been occasional complaints from users about delays in accessing the network. “T e system sometimes is overloaded because too many users want to use it at the same time”, explains Dariusz. He adds that, in a way, this is a good sign, because it shows that people want to speak to each other. But he says: “T e temporary solution is that some users are given priority and some users have no priority. So those users who do not have priority are unhappy because they have to wait for the channel to be free. But this is only a matter of time; in a few months the expansion will be done.” Using diagnostic software provided by Aksel, Krzysztof’s
TETRA and analogue: IP technology enables talkgroups to be bridged together
A direct radio link to the municipal fi re brigade in Gdansk is provided by this desktop DMR unit. The server box, developed for the project by system integrator Aksel, interfaces it via IP to the airport’s communications network
Aksel also supplied the TETRA radios, by Motorola (they include ATEX types), and also provided special accessories to cope with aircraft noise, especially for the engineering teams. T ese include noise-isolating headsets by Savox, which enable users to communicate even when the noise level reaches 110 dBm. T e company is a distributor for both manufacturers. Other enhancements provided by Aksel are a voice
recording and logging system which stores and archives all communications and call events handled by the system, and enables any message to be retrieved from the history.
Future development T e TETRA system entered operation in early 2012, after being successfully completed in just six months, as the Euro 2012 deadline loomed. T e system has worked well, and Krzysztof Wnek declares himself very happy with it. “Very happy”, he repeats. “But we are thinking about the further development of the system and increasing the capacity, because
24
department has carried out an extensive analysis of system usage. By monitoring queues, the software showed which companies or user groups were using the system lightly and which were causing it to be overloaded – and the statistics which emerged have helped to defi ne the requirements for expanding the capacity of the network. T ese enhancements will help support a further big expansion of passenger capacity, as a project gets underway this year to increase the limit from fi ve million passengers annually to seven million. To achieve this, the new passenger terminal is to be enlarged with a 70-metre extension to its western fl ank. And an upgraded instrument landing system will enable the airport to remain open for fl ight arrivals in poorer weather conditions than at present. Further upgrade plans for the TETRA system include automatic vehicle location for the airport fi re brigade and
Marzenna Krefft is vice-chairman of the board at Gdansk Lech Walesa Airport, which she describes, with a twinkle, as the most beautiful in Poland. “Communication is very important”, she declares. “We must have good communication for all the people who work on the airport”
TE TRA TODAY Issue 14 2013
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44