Communications & IT

Ham is the popular name for a radio amateur. Hams address each other exclusively by first name (or nickname), never by Mr., Miss, Mrs., or by last name. This is also valid for written correspondence between hams. The use of 1 liter unit in no case means disrespect, on the […]

Code QUESTION REPLY OR MESSAGE QRG What is the exact frequency? The exact frequency is… QRK What is the intelligibility of my signal? Your signal intelligibility is: 1: poor, 2: comparatively poor, 3: fair, 4: good, 5: excellent. QRL Are you busy? Is the frequency in use? I’m busy. The […]

Emission classification Emissions are classified according to the mode of operation and the required bandwidth. A minimum of three symbols are used to indicate their main characteristics. First symbol – type of modulation of the main carrier; Second symbol – carrier type; Third character – type of transmitted information; Note: […]

LETTERS А A DIT-DAH П P DIT-DAH-DAH-DIT Б B DAH-DIT-DIT-DIT Р R DIT-DAH-DIT В W DIT-DAH-DAH С S DIT-DIT-DIT Г G DAH-DAH-DIT Т T DAH Д D DAH-DIT-DIT У U DIT-DIT-DAH Е E DIT Ф F DIT-DIT-DAH-DIT И I DIT-DIT Х H DIT-DIT-DIT-DIT Й J DIT-DAH-DAH-DAH Ц C DAH-DIT-DAH-DIT Ж […]

Letter Phonetic word Pronunciation Letter Phonetic word Pronunciation A Alpha Alpha N November Nouvembar B Bravo Bravo 0 Oscar Oskar C Charlie Charli P Papa Papa D Delta Delta Q Quebec Quebek E Echo Eco R Romeo Romeo F Foxtrot Fokstrot S Sierra Siera G Golf Golf T Tango Tangou […]

The link here leads to a collection of useful and practical information for Bulgarian radio amateurs that I have not seen elsewhere. The frequency plan is current as of May 10, 2022. Note that there is also a second section with standard repeater names and frequencies. It is advisable to […]