I explained the configuration and features of the superheterodyne receiver.This time, I will focus on the basic knowledge of superheterodyne.
The design of the receiver is deep and is a showcase for the designer's skill.

Overview
00:22 Today's theme
00:59 Superheterodyne, order of commentary
01:16 What is Superheterodyne?
01:59 What is a frequency mixer? It was
04:03 Let's consider the reception of AM radio as an example.
06:34 Let's look at the relationship between 𝑅𝐹𝐼𝑁, 𝐼𝐹, 𝐿𝑜𝑐𝑎𝑙

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   • 【無線機】NanoVNAに使う評価治具の作り方  
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   • 【学校では学べない】無線機を設計するのに必要な知識  

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   • 【初級】コンデンサってなに！？実際に作って実験してみた  
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▼ What kind of channel?
Commentary video by an active engineer
Technical explanations related to electrical and electronic engineering, how engineers work, 🏫 at school
I will make a video of how what I learned is utilized in society (^^)!
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   / @tomachannel_electronic  
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▼ Next time
About the latter half of superheterodyne * ゜ ▽ ゜) No
High school physics:
High School Mathematics: Additive Theorem, Sin2πft, Cos2πft
Chemistry:
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▼ Profile
This is an example of the design content.
Hayabusa2 Radio / Hayabusa2 brought back the sand of the asteroid Ryugu
Disaster prevention radio / fire engine, ambulance
Microsatellite radio / Maybe anyone can take space photos
Video transceiver / wireless relay transmission device for television broadcasting
Radar pulse amplifier / To know the position of the rocket
Radar detector / Radar irradiation detection
5G base station / 4x4 MIMO for a certain company
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▼ Owned technology
・ High frequency circuit
(Up converter, down converter, power amplifier,
Synthesizer, filter)
・ Analog circuit (DCDC, regulator)
・ Digital circuit (FPGA, CPLD, MCU)
-Hardware logic (FPGA, CPLD)
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#Superheterodyne
#Amateur radio
#Tomachanneru
#Resonant circuit
#NanoVNA
#electronic work
#Impedance matching
#Smith chart
#Antenna matching
#AM