A small transmitting loop, small tuned loop or magnetic antenna is defined as a loop antenna of less than one-tenth to one-quarter of a wavelength in circumference. These are normally constructed as a single turn of heavy-gauge wire (AWG #10 or larger), … Read More
Basics of Cavity Filter Cavity filters are the basic circuitry behind a Duplexer and are sharply tuned resonant circuit that allow only certain frequencies to pass. Generically, the filter of this kind is known as notch … Read More
What is Phonetic Alphabet? A number of phonetic alphabets exist. The NATO version is most common and can be considered to be the “international” phonetic alphabet. Letter Code Word Pronunciation A Alfa AL FAH B Bravo … Read More
Related wiki pages FAQ When adding information to these pages, please link to other pages in the wiki wherever possible. A AC: Alternating Current ADC: Analogue to Digital Converter. Also known as A/D and A-to-D. … Read More
Basics The troposphere is the layer of the atmosphere closest to earth. It is approximately 10km deep on average but can extend to 20km in tropical areas. Tropospheric propagation occurs when signals are reflected scattered or … Read More
The Rag Chewers Club, traditionally an introductory amateur radio award, was issued to the operators of thousands of amateur radio stations and many long-time operators can proudly claim to have received it as their first award in … Read More