Researchers at MIT have developed a method to produce logic circuits that do not use semiconductors and can be printed using standard 3D printers. Using inexpensive, biodegradable materials and a conventional 3D printer, the new circuits are able to perform similar functions to today's semiconductor transistors....
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SMATV system in a brickhouse.
The manager of one of the brickhouses decided to upgrade the TV reception system. It was decided to remove individual TV antennas from the building and replace them with a SMATV system. Thanks to this solution, with the help of a single antenna set, residents will be able to enjoy free DVB-T2 digital TV and DVB-S/S2 satellite TV, as well as gain a more aesthetically pleasing appearance of the building, devoid of numerous antennas on the facade. The decision is aimed at both increasing the comfo...
Batch time synchronization in Hikvision devices.
The iVMS-4200 application allows batch synchronization in all devices that have been added to the application. Incorrect time setting can cause many problems. In the case of CCTV systems, it can make it difficult to determine the exact time of an incident, and in the case of video door entry systems it can cause problems with correct operation of tags according to a schedule. Synchronization can be done in ...
High quality ULTIMODE pigtails.
Fresnel zone.
The range of a wireless network depends on many factors. Some of them we can influence, while others are unknown. Fresnel zone is one of the most important concepts appearing in radio subjects you absolutely must be familiar with. It is the area actively involved in the transmission of radio signal energy. The shape of this area in longitudinal section is an ellipse, and in cross-section it is a circle. The radius of this circle varies along the length of the entire radio link and assumes a max...
Library new titles
- 2024-08-25
- Installation Components
One of the criteria for classification of TV systems in hotels is the programming to be distributed. The simplest systems may provide only free-to-air terrestrial TV broadcasts, whereas more advanced solutions will include satellite channels, also some premium ones (pay-TV). The content required by the owner/investor will depend on the categories of prospective hotel guests (foreign and thematic channels etc).
- 2024-07-17
- Some Theory
PoE (Power over Ethernet) is the name of a number of methods that allow for powering network devices through UTP/FTP cables. This way it is possible to power devices such as cameras, phones, switches, access points, etc.
- 2024-06-19
- Measurements
Measurement of DVB-T2 terrestrial television signals and DVB-S/S2 satellite television signals. The technique of measuring DVB-T2 terrestrial digital TV signals is not very different from DVB-T signal measurement.
- 2024-06-12
- HIKVISION
Archive library. The information contained therein may be outdated. HikCentral Professional is a complete platform designed to manage Hikvision-branded security systems.
- 2024-05-08
- Measurements
This article summarizes the knowledge for the installer who faces the task of verifying the correctness of a fiber optic system. The article describes in detail all aspects related to the idea and procedures of measurement by the transmission method.
- 2024-05-08
- Antennas & Connectors
The 5G network is the fifth generation of wireless (telecommunications) technology standards, which offers much faster data transfer speeds than earlier generations such as 3G or 4G.
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