The city police is all set to enhance its telecommunication system as they will be using Digital Mobile Radio (DMR) and Digital Private Mobile Radio (DPMR) soon.
The digital radio system is more secure compared to the existing Very High Frequency (VHF). Moreover, DMR/DPMR systems comes with several advanced features giving technical edge for policing activities.
According to police officials in the city, DMR/DPMR system have multi-site repeaters, dispatcher control, GPS and GIS map with LED display systems for control room and remote CPO locations. It can be connected to computers to record, share and store the signals and information.
This system can be configured into various modes like single site, multi site, simulcast, multi-repeaters with multi-sites, Trunking and simulcast-trunking mode as per the requirement of the Police Department.
“One of the main features of the system is that it can cover the city without any outdoor or indoor disturbances wherever deployed. The frequency rate is very high making it far secure from the ordinary VHF system.
The VHF system functions in the frequency of 136 to 176 MHz whereas the DMR/DPMR signal are tuned at the frequency of 400 MHz-470Mhz. The system is also 3G-enabled and having full band signals. The handsets of this system supports more than 256 channels. The system would be supplied to Thiruvananthapuram City Police and Kochi City Police,” police said.
The devices that support the digital mobile radio system are repeaters, aerial mast, lightning arrestors, UPS-backed power supply, mobile/static transreceiver sets, portable hand-held transreceiver sets, antennas and display system.
With the DMR/DPMR system there would be 16 repeaters, 200 mobile/static transreceiver sets in which 80 would be GPS-enabled sets and 120 non-GPS. There would be 400 hand-held transreceiver sets in which 100 would be GPS-enabled and 300 without the GPS system. There would be four lightning arrestors and four aerial masts installed in the control room.