Mobile Broadband is available through 3G/UMTS and 4G/LTE cellular networks. 5G is on the horizon.
In an ideal world cellular network coverage is everywhere. However there are enough locations where the network coverage is far from good, not to say varying from worse to literally non existent. There is a simple explanation for this phenomenon. Cellular networks have been deployed along highways, roads and cities and villages. Living in the country, remote areas, nature parks, nearby lakes etc. will often be a challenge in terms of cellular network coverage.
Mobile operators will only install extra cell towers when there is a ‘market’ for the required investment. As such there is an emerging market for cellular optimization. Digital Deal has helped to develop the first UMTS amplifier + combiner for aggregating cellular routers like Passari.
Since than many have been deployed with our customers like fireguard, police, marine industry etc. And none has ever been returned, The product has proven itself under the most stringent circumstances, in different applications. It eliminates white spots, extends reach to cellular towers and results in higher bandwidths and lower latencies in mobile broadband links.
Since early 2015 we have introduced the LTE amplifier + combiner, offering a 4-in-1 multi-band MiMo amplifier product. It supports 800, 900, 1800, 2100 & 2600 MHz bands (band 20, 8, 3 ,1 & 7). All our customers are extremely happy with the product. It extends reach over land by a factor 2, over water (lake, sea) it extends reach to a factor 4. With this product LTE reach is extended to about 35-40 km from the coastline. This is about 80% of the ship movements at sea, and offers a serious reduction of communications operations costs compared with satellite. We have customers that operate Citrix workstations from ships via our solution!
From Q3-2019 we can offer the 6-band Combiner Amplifier which has added the European 700 MHz band as well. From Q1-2020 we can offer the 5-band cellular Combiner Amplifier for the North American-Caribbean market.
From this cellular amplifier technology our partner, the manufacturer, has erected a cellular repeater business that enabled them to focus entirely on active cellular products and has grown their business substantially. As such Digital Deal can offer proven and solid solutions to improve cellular coverage inside buildings, ships and such where necessary. Completely invisible by the operators, non disrupting their operations, complying to any european regulations and resulting in well operating solutions. None ever returned, no complaints, no defects. The products help the cellular operators to overcome their imperfections in coverage.
Cellular Routers have one or more cellular modems providing the WAN links to the mobile network operators. Each cellular modem is acting like a smart-phone in terms of complying to cellular signal conditions. But there is one big, essential, difference. Cellular routers have external antennas. By working with better external antennas it is possible to establish quite some improvement in signal conditions for the cellular modem.
This all applies to a certain extent. Antennas have, depending on the physical size, an amount of ‘amplification’. In different words, antennas do not really amplify, but a longer rod of an omni antenna or a directional antenna will provide a stronger signal. The coax cable and the connectors between the cellular modem and the antenna, however, introduce an amount of signal loss based on the length and quality of the applied coax cable. This way the gain of a perfect antenna could be diminished to zero by the distance between this antenna and the cellular modem. There is only a certain amount of gain to be made with passive components.
That is where we need to go active! Together with the manufacturer, Digital Deal was the driving force behind the development of a cellular 3G amplifier, many years ago. This all has lead to the perfect operating 5-band 4G MiMo amplifier we already offer for several years. Many sold, none ever returned! Even no customer registered a defect. Really a perfect product. This 5-band combiner amplifier will be superseded by the 6-band combiner amplifier from Q3-2019.
Another way to improve cellular signal coverage is a method by having small basestations that connect to the mobile operators networks. These socalled Nano or Femto Cells are cellular ‘access points’ which provide the network signal of a specific mobile operator inside a building. This always requires the certification of that specific operator.
When there is a very bad signal outside -in the open ‘air’- no mobile operator will grant a Femtocell basestation to be deployed. In the Netherlands, below the line Alkmaar – Zwolle – Coevorden it is allowed to utilize the free 3.5 GHz frequency band. This can be used for specialized WiFi or Cellular projects. There is more possible in Cellular technology with Private LTE. The link below explains more.