Open Standard Digital Trunking Radio System

In news: The Delhi Police will move to the ‘Open Standard Digital Trunking Radio System’ (OS-DTRS) and will phase out the current tetra net wireless network services.

• The project will cost close to Rs 100 crore

About new system:

• It is an internal communication system of Delhi Police
• It is more efficient and aims at faster exchange of information
• The trunking system provides multiple channels and common groups for policemen.
• This way, they are communicating with more personnel using fewer groups, officials said.
• Groups are formed based on geographical area and function.
• It will also have a voice logger system, which can be used to describe a crime scene, interrogation details and evidence. The logs are saved in the system.
• The project’s master site will be at the Delhi Police HQ.
• Police are looking for private companies to run the system on 800 MHz frequency band and microwave links.
• There will be a tower that can withstand wind speeds of up to 160 kmph.
• Around 15,000 concurrent radio sets will be made first and later expanded to 30,000 over time.
• The master site will have OS-DTRS control and switching equipment, a network management system, 90 IP-based logger systems, 50-inch or bigger LED monitors, an antenna system and maintenance systems.
• Equipment and services are expected to run for at least 10 years and fix network issues faced by personnel on the ground.
• The system should be equipped to support multi-channel operation for meeting current traffic requirements and should be expandable by 100% in future
• The system will have talk groups, in which members have the same functions/role, and each radio system will have a unique ID.

Source: Indian express

Previous Year Questions

Q.1) With reference to ‘Near Field Communication (NFC) Technology’, which of the following is/are correct? (2015)

1. It is a contactless communication technology that uses electromagnetic radio fields.
2. NFC is designed for use by devices which can be at a distance of even a metre from each other.
3. NFC can use encryption when sending sensitive information.

Select the correct answer using the codes given below.

1. 1 and 2 only
2. 3 only
3. 1 and 3 only
4. 1, 2 and 3