KR970072726A - Antenna gain level of satellite broadcast receiver Outdoor display - Google Patents

Abstract

The present invention relates to a satellite broadcast receiver, and more particularly, to an antenna gain level of a satellite broadcast receiver that enables an antenna to be positioned at an optimum point by displaying it on an outdoor device using a receive gain level detection signal of a satellite broadcast receive antenna The present invention relates to a display device and a display device. In the past, in order to match a point at which a maximum gain is obtained at the time of installing an antenna, it is difficult to directly adjust the reception gain level indicating the reception state of the indoor device, However, in the present invention, the receiving gain level of the tuner is distinguished from the signal in the nasal cable connecting the outdoor unit and the indoor unit, and is converted into an appropriate signal that does not interfere with the signal, Through To the outdoor device and allows the outdoor device to detect and display the signal level proportional to the receive gain level applied by the tuner so that the installer can easily determine the receive gain level and easily adjust the direction of the satellite receive antenna to the optimum point .

Description

Antenna gain level of outdoor satellite display receiver.

Since this is a trivial issue, I did not include the contents of the text.

FIG. 3 is a block diagram of an antenna gain level outdoor display device according to the present invention, FIG. 4 is a detailed block diagram of a third degree gain level detector, FIG. 5 is a diagram showing signal components in a coaxial cable of FIG. FIG. 7 is a diagram showing the relationship between the signal-to-noise ratio level applied to the third microcomputer and the output pulse width modulation signal; FIG. 7 is a diagram showing the frequency characteristics of the band-pass filter and the band rejection filter;

Claims (5)

A satellite broadcast receiving apparatus comprising: a gain level detector for detecting a level component of a signal proportional to a received receive gain level signal detected by an indoor apparatus; a gain level detector provided outside the detector for detecting a signal detected by the gain level detector A microcomputer for receiving the information of the signal-to-noise ratio level of the received high frequency signal and converting the received signal into a pulse width modulation signal and outputting the pulse width modulation signal; And outputting the signal to the gain level detector; and a gain gain level signal converting unit for converting the gain level of the satellite broadcast receiver to the gain level detector. The receiver of claim 1, wherein the reception gain level signal converter comprises: a low-pass filter that receives a pulse width modulation signal applied from a microcomputer and low-pass filters the low-pass filter; a sine wave generator that generates a constant sine wave; And an adder for adding an output of the mixer and an El-Enbi voltage to output a reception gain level signal. 2. The receiver of claim 1, wherein the receiving gain level signal converting unit comprises: a filter unit for receiving a pulse width modulation signal applied from a microcomputer and performing low-pass filtering to smooth the signal; And outputting an output of the adder. 2. The apparatus of claim 1, wherein the gain level detector comprises: a band elimination filter for passing only the El-Enbi voltage in the signal input from the indoor device and outputting the signal to the EL-Envision; An amplifier for receiving and amplifying the output of the bandpass filter, and a full-wave rectifier and a low-pass filter for receiving the output of the amplifier and converting the amplified signal into a DC component. Outdoor display. The apparatus of claim 1, wherein the gain level detector comprises: a coupling unit that extracts only an AC component from a signal input from an indoor unit; an amplifier unit that amplifies an output of the coupling unit; And a low pass filter for receiving the output of the clamping unit and smoothed it and outputting the level to the display unit. ※ Note: It is disclosed by the contents of the first application.