Local Multipoint Distribution Services


Local Multipoint Distribution Services (LMDS) is a broadband wireless access technology, originally designed for digital television transmission (DTV). It operates in the frequency range of 10 to 40 GHz and can be used for multiple services such as voice, data, and video, but is primarily used for Internet access. The technology uses microwave signals and requires line-of-sight between the transmitter and receiver.


The phonetics for Local Multipoint Distribution Services is:Local: /ˈloʊ.kəl/Multipoint: /ˌmʌl.tiˈpɔɪnt/Distribution: /ˌdɪstrɪˈbjuːʃən/Services: /ˈsɜːrvɪsɪz/

Key Takeaways

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  1. Local Multipoint Distribution Services (LMDS) is a broadband wireless access technology that uses microwave frequencies for high-speed data transmission. It can provide a viable alternative to cable and DSL for last mile broadband access.
  2. LMDS operates in a high-frequency spectrum (typically 28 GHz) which allows it to transmit data at high speeds. However, it does not penetrate buildings well and requires line-of-sight transmission. Therefore, it is not suitable for heavily built-up areas.
  3. Due to its high capacity, LMDS is often used for business rather than residential use. It’s especially useful for companies with multiple locations as it can deliver internet, phone, and video services over a single connection.

“`Please note that these are general takeaways, and the details and performance of LMDS may vary depending on the specific provider and location.


Local Multipoint Distribution Services (LMDS) are significant in the field of technology because they provide high-speed, wireless broadband telecommunications over a broad radius. LMDS operates with high-frequency radio waves, thus making wireless data transmission faster and more efficient, benefiting both commercial businesses and residential users. The uniqueness of LMDS lies in its capability to transmit large volumes of data, voice and video signals simultaneously, thus enhancing communication capabilities. This system not only enables faster communication but also lowers infrastructure costs associated with traditional wired networks, making it a cost-effective and flexible solution for businesses. Overall, LMDS plays a crucial role in advancing modern communications technology.


Local Multipoint Distribution Services (LMDS) is a technology used for wireless broadband telecommunications. The main role of LMDS is to deliver data, voice, and video services over a large geographic area, thereby eliminating the need for physical connections like wires. It operates over microwave frequencies and uses point-to-multipoint configurations to provide reliable and high-speed data transmissions. This becomes ideal, especially in areas where installing physical broadband connections may be unfeasible or cost-prohibitive.By using LMDS, service providers can distribute bandwidth-intensive services directly to the users. Users typically install a small antenna at their homes or offices to receive the LMDS signals, which are then converted into data, voice, or video outputs. This technology is particularly useful in areas where the demand for broadband is high, but the infrastructure is inadequate. As such, it fills a critical gap in the telecommunications industry, particularly in those places where laying traditional fiber-optic or coaxial cables would be challenging or cost-prohibitive.


1. Wireless Internet Service: One of the primary applications of Local Multipoint Distribution Services (LMDS) is to provide wireless broadband internet service, especially in areas where cable or DSL are not available. For instance, a telecommunications company may use LMDS technology to beam internet signals from a central hub location directly to users’ homes or businesses. It’s an excellent solution for remote or rural areas.2. Telecommunications Backhaul: LMDS is often used in telecommunications backhaul, which refers to the part of the network that connects the core network or backbone network to smaller networks at the edges. For example, cellular phone operators use LMDS to transmit signals from individual cell towers back to the central network. It is often preferred due to its ability to deliver high bandwidth over long distances.3. Cable TV: LMDS can also be used for the wireless delivery of cable television services. In this scenario, the cable signals are wirelessly transmitted from the central antenna site to the individual households. This is particularly beneficial for areas where it is impractical or too expensive to lay traditional cable lines.

Frequently Asked Questions(FAQ)

Sure, here’s a FAQ section for Local Multipoint Distribution Services (LMDS).Q1: What is Local Multipoint Distribution Services (LMDS)? A: Local Multipoint Distribution Services (LMDS) is a broadband wireless access technology that uses microwave signals for high-speed internet and data network transmission over a broad coverage area. Q2: How does LMDS work? A: LMDS operates on a point-to-multipoint basis, transmitting signals from one central location to multiple receiving points within a given area, which could be homes, institutions, or businesses. Q3: What frequency does LMDS use?A: LMDS typically operates in the 28 GHz and 31 GHz bands, transmitting its signals over the airwaves much like traditional television or radio broadcasts.Q4: What is the range of LMDS?A: The range of LMDS can vary significantly depending on various factors such as geographical location and weather conditions, but typically LMDS has a range of about 3 to 5 miles from the transmission point.Q5: What are some applications of LMDS?A: LMDS can be used in a variety of applications including high-speed internet access, telephony services, video conferencing, digital TV broadcasting, and other data services. Q6: What are the benefits of using LMDS?A: Benefits of using LMDS include high data transmission speeds, ability to service multiple locations from one central point, and reduced infrastructure needs compared to wired services. It also allows for rapid deployment of broadband services. Q7: What are the limitation of LMDS?A: Some of the limitations of LMDS include susceptibility to weather conditions like heavy rain which can interfere with signal transmission, and it requires a line of sight between the transmission and receiving points. Also, it has limited range compared to some other transmission technologies. Q8: Is LMDS secured?A: Yes, LMDS has built-in encryption and other security measures to protect data being transmitted over the network. However, like all wireless technologies, it may still be susceptible to certain forms of cyber attack or interference. Q9: How does LMDS compare to other broadband wireless access technologies?A: LMDS generally offers higher data transmission speeds and can handle a high volume of data, which can make it more suitable for certain applications like video conferencing and high-speed internet access. Unlike satellite services, LMDS does not suffer from latency issues as the signals do not need to travel to space and back.Q10: Can I use LMDS for my home internet connection?A: Yes, if you are within the range of LMDS transmission and there are services available in your area, you can use LMDS for your home internet connection.

Related Tech Terms

  • Broadband Telecommunications
  • Wireless Networks
  • Multi-point Video Distribution Service
  • Digital Communication Systems
  • Radio Spectrum Transmission

Sources for More Information

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