A convenient and stable satellite TV set for communication

Abstract

The invention discloses a conveniently and stably installed satellite television for communication. The conveniently and stably installed satellite television for communication comprises a parabolic antenna, a tuner and an installation bottom plate; a fixed sleeve is arranged between the installation bottom plate and the parabolic antenna; the lower end of a support tube column passes through theinteriors of an externally threaded tube column and the fixed sleeve; a fastening threaded sleeve is also arranged on the outer side wall of the support tube column; the fastening threaded sleeve is positioned at the inner side of a threaded connection sleeve; the fastening threaded sleeve and the threaded connection sleeve are in threaded fit; a limiting column just below the fixed sleeve is arranged in the centre of the upper end face of the installation bottom plate; the axis of the limiting column is superposed with the axis of the fixed sleeve; multiple limiting strip-shaped grooves in one-to-one correspondence with limiting ribs and matched with the limiting ribs are arranged on the inner wall of the bottom wall of the support tube column; and the tuner is installed on one end of aninstallation transverse rod away from the fixed sleeve. The device is simple in structure, convenient to disassemble, replace and install, and firm to install and fix; the installation trouble due towhole rotation of the whole device when signals are adjusted can be avoided; furthermore, signal conduction lines are arranged in order; and the practicability is relatively high.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a convenient and stable satellite TV set for communication. Background technique [0002] The satellite receiving system used in the city generally consists of three parts: a parabolic antenna, a tuner and a satellite TV receiver. Because satellite TV broadcasting uses microwaves, which have optical linear propagation characteristics, for C-band and Ku-band, parabolic antennas with strong directivity are generally used, that is, the "cauldron" we often see erected on high-rise buildings. It is composed of a parabolic reflector and a feed source erected at the focal point of the parabola. The function of the antenna is to use the principle of geometric optics to reflect the radio wave and concentrate it on the focal point. The feed source at the focal point can transmit the radio wave signal to be received to the following high-frequency head. The function of the high-frequ...

AI Technical Summary

Problems solved by technology

The antenna and tuner installed outdoors need to be adjusted in order to receive a strong or even strongest signal, so that the TV picture can be clearer, while the general adjustment of the antenna and tuner is adjusted by rotating the entire device, and it is more troublesome to fix At the same time, the general fixing method is to pressurize with heavy objects, so that it is easy to fall when encountering strong winds, but the whole device is fastened and fixed, it is troublesome to adjust the signal, and it is not easy to maintain

Images