In order for a person to be able to transmit the necessary information from one point to another invented telephone communication, but the information itself can be transmitted thanks to the communication lines that bind people at different distances. The main task of communication transmission lines is to transfer it to distances to the right place. For a successful solution to this problem, a very reliable channel is required, which will provide high -quality and uninterrupted supply of communication at any distance, both short and long.
In this article, we propose to consider one of the varieties of equipment of high -frequency communication in order to know its basic properties and characteristics, who and how can use it, how to apply it in work correctly, and highlight it inherent in it, technical indicators.
Equipment for communication with a high frequency with the possibility of transmission through three ABS-3 channels (abbreviation from “High frequency equipment-3 ″) is applied in practice in order to transmit data by power lines with power from 110 kV. It is such lines that are considered lines of communication having a high frequency.
One of the options in which high frequency equipment is produced is equipment with modems that exist in it. On any of their channels, it does not matter which of the three channels it will be, it will be a connection due to the presence of an automatic communication device.
AVS-3-1TM with a working frequency range from 32 to 488, as well as from 544 to 1000 MHz, depending on the modification, has a size of 1167x600x250 and weighs almost 90 kilograms. This type of equipment consumes 280 VA, the required voltage is standard – it should not be higher than 220 volts.
It has a secondary seal of the telephone channel with other telemechanics signals from 2, 64 to 3, 4 kHz. If we take the nominal width of the frequency strip, which is optimal for transmitting a signal in the form in which it is sent, that is, without changes or any distortion, then it is 12 kHz. And the effectively transmitted frequency strip of telephone channel ranges from 0, 3 to 2, 4 and from 0, 3 to 3, 4 MHz.
We are sure that the presented information that describes the key technical and functional features of the high frequency equipment-3-1TM will help in the operation of equipment and orient how best to work with it. Of course it is easier to work with equipment if you have already used it. Otherwise, you should seek information that can be found on various thematic forums, sites, in specialized publications and reference books.
