DIPOL Weekly Review – TV and SAT TV, CCTV, WLAN

Samsung and TSMC launch 3 nm chipsets.

Samsung Electronics, a global leader in semiconductor technology, and Taiwan's TSMC have announced that they have begun initial production of 3-nanometer chipsets based on Gate-All-Around (GAA) transistor architecture, which is expected to eventually replace the FinFET solution, allowing for increased transistor density. The South Korean electronics brand Samsung and Taiwan Semiconductor Manufacturing Company (TSMC), which supplies its chips to iPhone maker Apple and Qualcomm, have been competing for years. The first-generation 3nm GAA chips are expected to have a 16 percent smaller footprint, 45 percent lower power consumption and a 23 percent improvement in performance over current 5 nm FinFET chips. Samsung engineers are confident that the second generation of nano chips will reduce power consumption by up to 50 percent and improve performance by up to 30 percent.

Only 10 years ago, nano chips in smartphones were created using a 32-nm lithographic process. Optimistic scenarios assumed that 7 nm chipsets could be developed in the distant future, although even that seemed unrealistic. One thing to realize is that a single silicon atom has a diameter of just over 0.2 nm. The transistors of 3 nm chipsets are built with no longer hundreds or tens, but single atoms.

The global chip shortage of the past two years, caused by the COVID-19 pandemic combined with rising demand, is now threatening manufacturing companies around the world. Therefore, TSMC has acknowledged that 3 nm chips will go into mass production in early 2023. Samsung, on the other hand, has announced that 3 nm GAA nano chips will be assembled in smartphones first. According to TrendForce data provider, TSMC controls 54 percent of the global chip contract manufacturing market, while Samsung holds 16.3 percent.

DPL-120 DIPOL satellite dish.

Satellite dishes are one of many important components of an antenna system. However, few users and installers of satellite dishes pay attention to the quality of the dish itself as well as its suspension. These are two elements that must ensure the stability of the antenna set and safety. In production, high-end satellite dishes are subjected to multiple tests that simulate: gusty winds, acid rain, the burden of freezing rain, the impact of salt spray (coastal areas), high and low temperatures. Another important parameter is the size of the dish. The larger the satellite dish, the higher the gain. The standard diameter of a satellite dish mounted in a single-family house is 80-90 cm. However, while building multiple-user SAT systems, it is recommended to use larger dishes with a minimum diameter of 120 cm, which provide a gain of 42.1 dBi at 12.75 GHz.

DIPOL has introduced 120 cm dishes in two colors: DPL-120 [light grey] A9682 DPL-120 [dark graphite] A9684.

DPL-120 satellite dishes A9682 and A9684 have been tested against the IEC1114-2 wind resistance standard. A salt resistance test (NBR 8094) and verification of the thickness of the zinc coating (NBR 7937) have been performed.

You can read more about the standards met by the DPL-120 satellite dish, how the tests are conducted and the results obtained in the publication Strength and corrosion testing of satellite dishes.

How to convert analog channels to IP in HD-TVI Hikvision DVR?

Hikvision TurboHD DVRs offer you the flexibility to expand your surveillance system. If a given analog channel is unused, disabling it in the menu adds support for a new IP camera. This is the case, for example, when an investor plans a gradual expansion of the old system. With TurboHD DVR you can reuse of old analog cameras, which can be converted to HD-TVI or IP cameras at the following project stages.
Often, it happens that the need for wireless signal transmission or fiber optic transmission forces the IP installation (such devices are much cheaper).

The type of video input can be configured in the DVR menu for both remote and local access.

Router with WiFi 6 (802.11ax).

TP-Link Archer AX72 N3269 gigabit router that operates according to 802.11n or 802.11ac and 802.11ax (WIFi 6) standards at speeds of up to 574 Mbps (2.4 GHz) or 4804 Mbps (5 GHz) allows you to create high-speed wired and wireless network connections. It is designed for small enterprise and home use. It uses the MU-MIMO technology ensuring unprecedented transmission efficiency, making it possible to transmit 4K video, VoIP communication and online games.

Wi-Fi 6 (also Wi-Fi 802.11ax) is the next generation of wireless connectivity. It is a greatly expanded and improved version of the previously used 802.11ac standard. It was prompted by the ever-increasing number of devices in use worldwide. In order to increase network performance, and thus the speed of data transmission, the Wi-Fi 6 standard is based on 1024-QAM modulation. It allows the use of a 160 MHz wide channel, which makes it possible to achieve extremely high speeds of Wi-Fi connections.

Wireless networks used by neighbors can cause mutual interference. The BSS mechanism eliminates this problem. Each router using the 802.11ax standard marks the frames of its network. This solution allows devices to ignore the transmission of adjacent networks. This is especially important for devices installed in blocks of flats.

The router is equipped with the HomeShield security suite, providing protection for all connected clients against DDoS attacks, malicious websites and port intrusions. In addition, the Archer AX72 supports OneMesh technology that prevents network connection loss and transmission delays when moving around the house (switching between devices supporting the OneMesh solution).

Termination of 2-4J fiber optic cables.

Fiber optic TV/SAT and CCTV systems are mostly based on cables with no more than 4 fibers. As a rule, multifiber buses are not used in such systems, and most point-to-point connections are designed to implement transmissions based on 1 or 2 fibers.

Installers are often faced with the issue of how to terminate 2-4J cables. Usually the overriding criteria are aesthetics and connection security. The ideal solution here is the Signal L5312 mini PS-m DIN adapter. It enables the installation of two SC duplex adapters and is equipped with a basket for 4 splices. It is made of 1 mm thick powder-coated steel sheet. Its dimensions are a compromise of the most compact size possible for installation even in chosen electrical distribution boxes and fiber security (maintaining a minimum bending radius). An important feature is the DIN bracket that allows for various mounting scenarios.

The use of colored pigtails from the L35511A set allows to keep high aesthetic level and easy identification of the fibers. The size of the distribution frame allows for safe routing of the G.657A1/A2 fibers, keeping their minimal bending radius. The front panel has 2 SC/UPC duplex L4311 adapters.

5G antenna. The frequencies used in cellular networks are: 800, 900, 1800, 2100 and 2600 MHz. The choice of operating frequency, e.g. for LTE, is determined by a number of factors, among others related to physical properties of propagation of radio waves.
Lower frequencies, due to good propagation properties, are called the range or coverage frequencies. They pass through obstacles quite well, which ensures coverage in places quite distant from base stations. Unfortunately, due to narrow transmission channels used in this band, the possibility of offering high bitrates and network capacity (the number of connectable devices) are strongly limited... >>>more