 
 
The following abbreviations may be used in Communication:
| Abbreviation | Meaning | 
|---|---|
| AA | Arabic | 
| ad(s) | advertisement(s) | 
| add | address | 
| ADSL/td> | Assymetric Digital Subscriber Line (unsually refers to internet service via telephone line) | 
| Af | Africa | 
| AIR | All India Radio | 
| alt | alternative frequency | 
| Am | America(s) | 
| AM | amplitude modulation | 
| amp | amplifier | 
| ann(s) | announcement(s) | 
| As | Asia | 
| ATU | aerial tuning unit | 
| Au | Australasia/Pacific | 
| AWR | Adventist World Radio | 
| BVB | Bible Voice Broadcasting | 
| CADS | Community Audio Distribution Services | 
| CB | Citizens Band | CET | Central European Timetr> | CEST | Central European Summer Time | 
| C&W | country & western music | 
| CC | Chinese | 
| CD | Compact Disc | 
| Cland | clandestine | 
| CR | community radio | 
| CW | morse code | 
| DAB | digital audio broadcasting | 
| DD | Dutch | 
| Dom | domestic | 
| DRM | Digital Radio Mondiale | 
| DSB | double sideband | 
| DST | Daylight Saving Time | 
| DTH | direct to home | 
| DVD | Digital Versatile Disc or Digital Video Disc | 
| DX | long distance reception | 
| EE | English | 
| EST | Eastern Standard Time (USA/Canada) | 
| Eu | Europe | 
| Ext | external | 
| f/d | full-data QSL | 
| FF | French | 
| FM | frequency modulation | 
| Fq | frequency | 
| GG | German | 
| GHz | GigaHertz | 
| GMT | Greenwich Mean Time (=UTC) | 
| GOS | General Overseas Service | 
| HD | High Definition | 
| HF | high frequency (= shortwave) | 
| HFCC | High Frequency Coordination Conference | 
| HQ | headquarters | 
| IBOC | In Band On Channel | 
| ID | identification | 
| IF | intermediate frequency | 
| II | Italian | 
| ILR | Independent Local Radio | 
| IN | Indonesian | 
| inf | information | 
| Int | international | 
| IRC | International Reply Coupon | 
| IRN | Independent Radio News | 
| IS | interval signal | 
| ISB | independent sideband | 
| J | jamming (when next to a frequency in HF logbook) | 
| JJ | Japanese | 
| kHz | kiloHertz | 
| kW | kiloWatt | 
| LA | Latin America | 
| LPAM | Low Power AM | 
| LPFM | Low Power FM | 
| LRSL | Long Term RSL | 
| lsb | lower sideband | 
| LUF | lowest usable frequency | 
| LV | La Voz | 
| LW | longwave | 
| m | metre | 
| ME | Middle East | 
| MF | medium frequency (mediumwave) | 
| MHz | MegaHertz | 
| MUF | maximum usable frequency | 
| MW | mediumwave(or MegaWatt) | 
| mx | music | 
| NA | national anthem | 
| NAm | North America | 
| nx | news | 
| OM | man (male) | 
| PC | personal comupter | 
| PLC | Power Line Communications | 
| PLT | Power Line Telecoms | 
| PP | Portuguese | 
| ppc | prepared post card - (a self-made QSL card) you sent to the radio station to be endorsed and returned to you) | 
| PRES | presumed | 
| px | programme(s) | 
| QRG | frequency | 
| QRM | interference (man made) | 
| QRN | interference (natural static/atmospheric noise) | 
| QSB | fading | 
| QSL | confirm/verify | 
| QSO | Two stations in contact | 
| QTH | location/address | 
| R | Radio | 
| Rdiff | Radiodiffusion | 
| RDS | Radio Data Service | 
| rel | religious | 
| RF | radio frequency | 
| RN | Radio Nacional | 
| rpt | reports/reported | 
| RR | Russian | 
| RSGB | Radio Society of Great Britain | 
| RSL | Restricted Service Licence | 
| RTTY | radio teletype transmission | 
| rx | receiver | 
| sae | stamped addressed envelope | 
| sat | satellite | 
| sch | schedule | 
| SDR | software-defined radio | 
| s/off | sign off | 
| s/on | sign on | 
| SS | Spanish | 
| ssb | single Sideband | 
| svce | service | 
| SW | shortwave | 
| sx | songs / singing | 
| t/ch | time check | 
| TENT | tentative logging | 
| TS | time signal | 
| TT | Turkish | 
| tx | transmission/transmitter | 
| TWR | Trans World Radio | 
| UHF | ultra high frequency | 
| UNID | unidentified | 
| URL | Universal Resource Locator (ie web address) | 
| usb | upper sideband | 
| UTC | Universal Coordinated Time (=GMT) | 
| v | variable frequency (eg 6240v) | 
| VHF | very high frequency | 
| VLF | very low frequency | 
| VO | Voice of | 
| v/s | verification signer | 
| VV | vernacular language | 
| W | Watts | 
| w/ | with | 
| WRN | World Radio Network | 
| WS | World Service | 
| WWW | world wide web | 
| wx | weather | 
| X-band | extended mediumwave band: 1600-1700 kHz | 
| XYL | wife | 
| YL | woman/female | 
| 73s | best wishes | 
| 88s | love & kisses | 
| // | parallel frequency | 
| $ | dollars | 
| $C | Canadian dollars |