Signal amplification in LNB is one of the key steps in the process of receiving satellite signals. This amplification helps the very weak signals that reach the earth from satellites to be strong enough to be transmitted to satellite receivers without quality loss and with minimal noise. This action takes place in several steps: Receiving high frequency signal (High Frequency Input): Satellite signals at high frequencies (10.7 to 12.75 GHz) are collected by the satellite dish and focused towards the LNB. Signal Amplification: LNB amplifies these weak signals so that their quality is suitable for further processing. Noise Reduction: By reducing the noise of the signals, the LNB sends them to the receiver cleaner and with higher quality. Frequency conversion to a lower frequency (Frequency Conversion): LNB converts the high frequency of the signal to a lower frequency (950 to 2150 MHz). This lower frequency is easily transmitted through coaxial cables. Signal transmission to the receiver (Output to Receiver): Finally, the converted signals are transmitted to the satellite receiver, which has the ability to process these signals. Learning electronic ink seems a bit difficult at first, but little by little and with experience, you can gradually increase your knowledge. My suggestion for learning electronics is the basic concepts course in electronics which is available on my website. I described and tested the parts in the correct way with the help of tools. You will definitely succeed, but it also requires your perseverance. ----------------------------------------------------- - Website address: http://www.elecma.ir ------------------------------------ -------------- Course of basic concepts in electronics: • Training course to understand basic concepts in electronics... ------------------- ------------------------------ To subscribe to this channel, click on the following link: / @electronic4hame to subscribe ( Subscription) in my English channel, please click on the following link: / @electronic4u-david --------------------------------- ---- Thank you for your support ❤️❤️❤️ Our website for preparing courses https://www.elecma.ir Our training courses include 1) analysis of switching power sources based on circuit and schematic 2) analysis of protective circuit board Electricity on the map and description of the working principles of the circuit 3) Analysis of the computer power circuit. Complete analysis of 4 different maps with existing types of ICs 4) Construction of a variable power source with high and low current (with matching transistor 5) Installation of flash player in the car broadcast in principle along with the construction of a signal circuit without change in the broadcast circuit 6) Review and analysis of the car battery charger circuit 7) Scientific and practical investigation of welding inverter or welding machine 8) Car amplifier training course 9) 220V power inverter training course 10) Changing the power supply of a bee-book to the construction of a short-circuit circuit 11) Basic concepts in electronics (scientific and practical application) our website for preparing courses https://www.elecma.ir 00:00 Description of the beginning of the lnb circuit 01:37 Display of output voltage and frequency in the receiver with the help of an oscilloscope 02:57 Description of the internal circuit of the lnb B and its operation steps 07:08 LNB internal circuit drawing 11:23 Switch operation