Business and construction needs excessive resources in every way. One of the most important resources is metro communications that allow its members to connect and build better entity. When constructing a high rise building it is very necessary that the engineer, builder and other workers stay connected so that they don‘t make a mistake. This is not possible with wired phone, landlines, but is also very difficult for other mobile phones to maintain network in such tense and hi electromagnetic field. In such areas only mobile radios like PMR and DMR radio are useful.
In general these portable handheld radios are known as portable radio. The reason is evident in its name besides there is no better way to it. PMR solutions (professional mobile radio) seem to be little outdated for business and construction purposes, so they are now replaced by DMR radio. Many big constructions like “No 1 Blight Street Sydney†used these DMR systems. The reason is quite clear, excellent network coverage in complex environment is what people want for such professional use.
HYT Tower, Shenzhen Hi-Tech (http://www.hytera.in/) stated that these systems with TETRA radio and DMR facility are better because they allow point to multipoint communication that too without any network interference. General public know them as 2 way radio / two way radio for these are transceiver capable of receiving and transmitting data and messages.
The company also made clear that these systems are mostly useful for safety and security agencies and requires license to use them. Majority of the government agencies involved in security, safety, transportation, and medical assistance use these systems as the best means of communication. For such reasons in many countries these radios are also known as police radio.
http://www.hytera.in/ recently said that they don‘t want to let any of their customers go unsatisfied, so they keep with them almost all types of PMR and DMR radio systems. Although many of the old devices and radio systems are not in demand but few customers turn up for them. As a technical aid they always recommend to use latest devices like DMR walike talkie, TETRA radio systems, and such. So that the business and customers can get uninterrupted and tension free communication systems.