EI7GL....A diary of amateur radio activity
Reporting on radio science and experiments
Pages
(Move to ...)
Home
Medium Wave
28 MHz
35 MHz
40 MHz
50 MHz
60 MHz
70 MHz
88-108 MHz
144 MHz
432 MHz
Microwaves
Digital
Links
▼
Showing posts with label
Edwin Armstrong
.
Show all posts
Showing posts with label
Edwin Armstrong
.
Show all posts
Thursday, August 5, 2021
The Experimental Station WA2XMN on 42.8 MHz
›
In 1933, frequency modulation or FM radio was invented by Edwin H. Armstrong in the USA to reduce the static and interference associated wit...
›
Home
View web version
