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What is Two-Way Radio

A two-way radio is simply a radio that can both transmit and receive (a transceiver). In broader terms, most voice wireless communications systems, including cellular systems, fall into two-way radio definition. In this website, two-way radio refers to radio system mainly used for group communication. This two-way radio system is also known as Professional Mobile Radio (PMR), Land Mobile Radio (LMR), Private Mobile Radio (PMR), Public Access Mobile Radio (PAMR). A portable two-way radio is often called walkie-talkies or handy-talkies. Two way radios are also available in mobile and base station configurations as well as utilizing radio network infrastructure.

A two-way radio is typically equipped with a “Push-To-Talk” PTT button to activate the transmitter. User just simply presses the PTT button and can immediately start to talk. User releases the PTT button to listen to others.

Two-way radio can “talk” directly to other radios or use radio network infrastructure. A direct talk among radios (usually known as direct mode operation, talk around mode) has limited range due to limitation of radio power. To overcome this limitation, a radio network infrastructure can be utilised to extend communication range.


Why Two-Way Radio

With various wireless technology options and two-way radio being one of the “earliest” wireless technologies, one may question whether two-way radio is still a viable technology today. The answer is YES and the following are the 2 key points that uniquely differentiate two-way radio to other wireless technology.
1.    Instant Communication
Two-way radio provides instant communication. User just need to press the “Push-To-Talk” PTT button and within a fraction of a second, this user can immediately talk to and convey his/her messages. This is due to a quick call setup time imbedded in the technology. This instant communication capability is one of the key factors of why many organisations rely on two-way radio for their tactical or operational communications.

2.    Group Communications
Another distinct feature of two-way radio is its capability to facilitate “one-to-many” group communication (also known as “group call”) very efficiently. By efficient we mean that one user can talk/communicate to one, five, tens, hundreds or thousands of users at the same time. User don’t need to repeat the same message over and over again. In addition, two-way radio performs the group communication using minimum RF channel resources. If all of the users reside in the same area, most of the time, you only need one channel resource to talk to these hundreds of users.


Why Not Other Wireless System

Every wireless technology has their advantages & disadvantages. The choice of which technology is the most suitable for one’s organisation depends on whether that particular technology can meet the user requirement.

For those users who need to

  • Work in a group
  • Communicate instantly, and
  • Mobile

Two-way radio can be considered as appropriate solution compared to other wireless technology. Following are the reasons why other wireless technology, such as public cellular network, may not be able to meet the above requirement.

Who Are The Users

Two-way radio has been used for many years by various organisations and industries. Due to the nature of their operational needs, they have to utilize two-way radio to address their communication needs. Examples of such organisations and industries that rely on two-way radio are:

  • Public Safety Organisation: Police, Fire Brigade, Emergency Medical Services/Ambulance, Disaster Recovery Agencies.
  • Security: Military, Intelligence Agencies
  • Transportation: Railway, Airport, Seaport, Light Rail, Subway
  • Oil & Gas Companies
  • Utility Companies: Electricity, Gas, Water, Telephone, Cable TV
  • Transport Service Companies:Taxis, Car Hire Services, Trucking & Haulage Companies
  • Construction Companies: Commercial, Residential, Road etc
  • Hospitality Industries: Hotels, Resorts, Restaurants, Tourism
  • Government Agencies: Ministries, Local Governments, Municipal Authorities, Embassies, Public Works
  • Services Industry: Delivery Companies, Towing Companies, Logistics Companies
  • Manufacturing
  • Contractors: Electrical, Excavating, Plumbing, Roofing, Maintenance & Repair Services

How Does Linkline Network Benefit Me?

The benefits include:

  • Fixed Call Costs
    Low flat rates & certainty of pre-budgeted operational costs
  • Fast Connection
    In a fraction of a second, which improves operational efficiency
  • Various Call Types Including:
    One-to-one private speech calls
    Group calls (radios can be member of one or multiple groups)
    Fleet calls (contact all radios with a push of a button)
    Priority calling or emergency calling
  • Availability of Lease & Rental Options
    Combine air-time and Radio terminals into simple monthly rates
  • Call Queuing:
    In the unlikely event that the network is busy it will automatically queue a radio on a first in first serve basis
  • Automatic Call-back:
    Connecting you to people who have been trying to reach you
  • Sending Pre-Coded Messages:
    E.g. arrived on site; goods delivered (Status Messages)
  • Sending Short Free-Form Messages
    Short data messages
  • Sending detailed messages (e.g. repair instructions)
    Non-prescribed data



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