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

H.266 – the new VVC video compression standard.

The debut of the next-generation video codec dubbed “H.266” in Intel Lunar Lake processors opens a new chapter in video compression. As the successor to HEVC, the new VVC standard (VVC. Versatile Video Coding) provides significantly higher coding efficiency, making it a key solution for 4K, 8K and VR content. Although VVC has not yet been adopted in TVs, support for this codec may become a standard in the future, thanks to its higher compression efficiency. Support for the HEVC (H.265) video codec has long been a standard feature of 4K and 8K TVs, but VVC (H.266) has not yet been adopted in TVs, even in 8K models.

At 8K resolution, the VVC codec is said to be 50-60% more efficient than HEVC and 20-30% better than AV1. The improved performance of the video codec enables similar video quality at lower bitrates, allowing users with slower Internet speeds to enjoy high quality video. Alternatively, even better video quality can be achieved at the same bitrates. The new Intel processors, equipped with the Xe2 graphics component, support video decoding up to 8K resolution at 60 fps. VVC is optimized for 360-degree video, which is particularly useful for VR applications.

The first deployments will begin with the launch of “AI computers” powered by new Intel Core Ultra processors, built on the Lunar Lake architecture. Intel announced that Acer, Asus, Dell, HP, Lenovo, LG, MSI and Samsung will begin rolling out these computers in late September 2024.

Family of TRISET-302.

DIPOL has expanded its range of 75 Ohm coaxial cables for RF/SAT systems. The family of TRISET-302 brand cables is a new series of high-quality coaxial cables designed for transmission of DVB-T2 television and DVB-S/S2 satellite signals. They are characterized by low attenuation, high resistance to interference and robust design, making them an ideal choice for small home systems and professional SMATV systems. And these are Tri-Shield cables, with A+ shielding class and 1.02mm copper core. There are indoor cables with different classes of reaction to fire: TRISET-302 Eca E1005_250, TRISET-302 Dca E1006_500, TRISET-302 B2ca E1007_500, and the outdoor cable TRISET-302 Fca E1008_250.

Antenna cable for an LTE/5G router.

Antennas used to improve a mobile operator's signal have an impedance of 50 ohms, so every part of the radio path must have this impedance value (TV coaxial cable is not allowed as it has an impedance of 75 ohms). The exemplary cable used to extend the antenna cable is the Tri-LAN 240 E1171. When it comes to connectors, most often the antenna cable is terminated with an SMA connector, to which you can plug an additional antenna connector dedicated to a specific modem.

The most common in modems are SMA connectors, then, for example, the A741024 antenna connector fits directly. If the modem has a TS5 connector, the E83201 connector is required, while for the TS9 connector, the E83206 connector is required.

Bira's series of current-consuming door strikes.

A series of HARTTE XS00 electric strikes by Bira, distinguished by small dimensions and low current consumption, is available from Dipol. The electric strikes can be powered by DC or AC voltage in the range from 12 to 24 V. When powered by AC 12 V, the minimum current consumption is 185 mA, while when powered by DC 12 V, the minimum current consumption is 260 mA. In addition, if the electric door strike is powered by DC 12 V, it can operate continuously. Thanks to the symmetrical design, the electric strikes of this series are perfect for left and right doors of different types. The strikes can be adjusted up to 3.5 mm. The radial shape means that they do not go beyond the outline of the electric strike and require a smaller hole, which makes installation faster and easier. Each model has a different functionality. Standard, memory, toggle or combination models are available.

"Easy strip" fiber optic pigtails – what is the point in using them.

Fiber optic pigtails are used for termination of fiber optic transmission paths. The connection taking into account a section of cable fiber, pigtail and the place where they are connected (splice) is usually secured in a fiber optic box or, in the case of couplers or switches, in splice boxes.

The process of preparing the pigtail for splicing always begins with peeling it from the outer protective sheath with a diameter of 900 μm. There are two approaches to the length of the fiber section over which this coating should be peeled. The first assumes that this length should be such that after splicing, the 900 μm sheath goes under the splice shield. This option is very popular among splicing technicians. It is less labor-intensive compared to the alternative option.

The second option involves peeling the pigtail from the outer sheath over a longer section. This section generally corresponds to the length of the fiber that remains in the splice box. The transition from 250 μm to 900 μm sheath occurs immediately before the pigtail exits the splice box – often this sheath is used to pin the pigtails to the exit of the splice box so as to reduce the possibility of shifting. The disadvantage of this solution is a bit more work for the installer – it is necessary to pre-measure the place where the pigtail will leave the splice box in order to strip the sheath to the correct length. The advantage of this solution is greater flexibility in terms of splice box sizes. Peeling the 900 μm sheath pigtails takes up much less space. This can be of great importance for splice protection boxes on a large number of fibers.

In "easy strip" pigtails, the 900 μm sheath is loose. It is possible to peel off the pigtail in any section very easily and quickly. This allows easy implementation of pigtail connections as described above as “option 2”.

Two HDMI converter to IP transmitters in one network. By default, there cannot be more than one HDMI transmitter H3614 (H3613, H3606) on one network. This is due to the fact that the manufacturer has uploaded the same network configuration on each transmitter. The user is not allowed to make any address changes to the HDMI devices. Therefore, if two transmitters are used, there is a conflict of IP addresses (resulting in incorrect network operation)...>>>more