| BTRC |
Bangladesh Telecommunication Regulatory Commission (BTRC) |
| ITU |
International Telecommunication Union (ITU) |
| IARU |
International Amateur Radio Union (IARU) |
| IARU-R3 |
International Amateur Radio Union – Region 3 (IARU-R3) |
| ARRL |
American Radio Relay League (ARRL) |
| BARL |
Bangladesh Amateur Radio League (BARL) |
| SARL |
South African Radio League (SARL) |
| HAM Study |
HAM Study |
| QSL |
QSL |
| QRZ |
QRZ |
| HAM Radio School |
HAM Radio School |
| Engineering Books |
Engineering Books |
| Giangrandi |
Giangrandi |
| Phonetics |
International Phonetic Alphabet |
| Q Code |
Q Code |
| Morse code |
Morse code |
| Modulation |
Modulation classification |
| DTMF Encoding |
DTMF encoding |
| Abbreviations |
Abbreviations |
| QTH locator |
QTH locator calculator |
