May brings radio amateurs a rich and interesting calendar of competitions, which include activities on shortwave (HF) and very shortwave ( VHF). Already during the first days of the month, enthusiasts can participate in the 2nd sub-regional race, which offers the opportunity to test the skills on the bands from 2 m above with both CW and SSB operation. International competitions such as 10-10 International Spring are also taking place at the same time QSO Party alebo ARI International DX contest, ktoré umožňujú aktívnym operátorom využiť široké spektrum pásiem od 160 m až po 10 m a rôzne módy, od CW a SSB po digitálne prevádzky.

In the week after this opening race comes a major event - the Italian EME contest, zameraná na veľmi krátke vlny, kde sú operátori pripravení na komunikáciu prostredníctvom mesačných odrazov signálu. Stred mesiaca bude mimoriadne bohatý na VKV súťaže, vrátane LZ Activity contest, 9A Activity contest či Pokuplje contest, pričom niektoré dni sa koná viacero súbežných pretekov. Pre milovníkov SHF pásiem je zaujímavá aktivita na 23 cm a vyšších, ktorá preverí technické schopnosti a presnosť anténnych systémov.
The peak of May comes on the last weekend when the prestigious event takes place CQ WW WPX CW contest, lákajúci operátorov z celého sveta. Tento intenzívny KV pretek poskytuje ideálnu príležitosť pre skúsených aj začínajúcich rádioamatérov otestovať svoje zručnosti, získať nové spojenia a dosiahnuť kvalitné výsledky. Prajeme vám veľa pekných QSO a úspešnú súťažnú sezónu.
| The date | UTC | Name | Bands and fashions |
| 1.-2.5 | 00.01-24.00 | 10-10 International Spring QSO Party | 10m, SSB/CW/AM/FM/DIGI |
| 1.5. | 04.00-06.00 | SSB League | 80m, SSB |
| 1.5. | 13.00-19.00 | AGCW QRP/QRP Party | 80 and 40m, CW |
| 1.-2.5. | 14.00-14.00 | 2. Subregional races | 2m and up, CW/SSB |
| 1.-2.5. | 20.00-20.00 | ARI International DX contest | 160-10m, CW/SSB/DIGI |
| 2.5. | 04.00-06.00 | Operating asset KV | 80m, CW |
| 3.5. | 19.30-20.30 | Activity 160 SSB | 160m, SSB |
| 4.5. | 17.00-21.00 | NAC 2m contest | 2m, CW/SSB |
| 8.-9.5. | 00.00-24.00 | Italian EME contest | 2m and above |
| 8.5. | 04.00-06.00 | OM Activity contest | 80m, CW/SSB |
| 8.-9.5. | 12.00-12.00 | Alessandro Volta RTTY DX contest | 80-10m, RTTY |
| 8.-9.5. | 12.00-12.00 | CQ-M International DX contest | 160-10m, CW/SSB |
| 10.5. | 19.30-20.30 | Activity 160 CW | 160m, CW |
| 11.5. | 17.00-21.00 | NAC 70cm contest | 70cm, CW/SSB |
| 15.-16.5 | 18.00-18.00 | His Majesty The King of Spain contest | 160-10m, CW |
| 16.5. | 05.00-09.00 | LZ Activity contest | 6m and above, CW/SSB |
| 22.-23.5. | 21.00-02.00 | Baltic contest | 80m, CW/SSB |
| 16.5. | 07.00-12.00 | ZRS Marathon | 6.2m and 70cm, CW/SSB |
| 16.5. | 07.00-12.00 | 9A Activity contest | 2m, CW/SSB |
| 16.5. | 07.00-12.00 | Pokuplje contest | 2m, CW/SSB |
| 16.5. | 08.00-11.00 | Operating assets VHF | 2m and up, CW/SSB |
| 18.5. | 17.00-21.00 | Activity contest SHF (I) | 23cm and above, CW/SSB |
| 25.6. | 17.00-21.00 | NAC 6m contest | 6 m, CW/SSB |
| 29.-30.5. | 00.00-24.00 | CQ WW WPX CW contest | 160-10m, CW |
