SZ123

E-enthusiasts in the entry-study phase, and ultimately, the total electronic small production, small repair activities to enhance their practical ability. Assembly of a radio or radio repair the vast majority of beginners are bound to be one of the ac...

The article translation from:http://www.21say.com/gamma-%ce%b3-match/
Gamma (γ) matching is actually half of T-matching for 50Ω coaxial cable and connections, is a very convenient way of matching. Which d1> d2 ratio the greater the wider th...

Objectives
State the following regarding single side-band (SSB) systems:

Effect on efficiency and bandwidth
Required modification to equipment

Conventional AM
This is how a typical AM system transmitter works:

...

Objectives
1. Know how a superheterodyne receiver works and what its advantages are.
What Heterodyning is
To heterodyne means to mix to frequencies together so as to produce a beat frequency, namely the difference between the two. Am...

Objectives

Know two reasons for using a carrier frequency
Be able to use a Power Density Spectrum to find:

efficiency
bandwidth

Know the relationship of carrier frequency, modulation frequency and modulation index to:...

Objectives

Know the relationship of carrier frequency, modulation frequency and modulation index to efficiency and bandwidth
Compare FM systems to AM systems with regard to efficiency, bandwidth and noise.

Basic System
The b...