UBA HF Contest Calendar - April
Category Name:
Ref. Month:
April
| Date start | UTC start | Date end | UTC end | Contest name + link | Mode |
| 03/04/2021 | 15:00 | 04/04/2021 | 15:00 | SP DX Contest | CW/SSB |
| 03/04/2021 | 16:00 | 04/04/2021 | 16:00 | EA RTTY Contest | RTTY |
| 03/04/2021 | 18:00 | 04/04/2021 | 23:59 | Missouri QSO Party | CW/Phone |
| 05/04/2021 | 06:00 | 05/04/2021 | 09:00 | Deutschlandkontest | CW |
| 05/04/2021 | 15:00 | 05/04/2021 | 17:30 | DARC Easter Contest | CW/SSB |
| 07/04/2021 | 19:00 | 07/04/2021 | 20:00 | CWops Tests (CWT) | CW |
| 07/04/2021 | 20:00 | 07/04/2021 | 21:00 | UKEICC 80m contests | SSB |
| 10/04/2021 | 07:00 | 11/04/2021 | 13:00 | Japan International DX Contest | CW |
| 10/04/2021 | 12:00 | 10/04/2021 | 17:00 | DIG QSO Party (10-20m) | CW |
| 10/04/2021 | 12:00 | 11/04/2021 | 12:00 | OK-OM DX SSB Contest | SSB |
| 10/04/2021 | 12:00 | 11/04/2021 | 18:00 | IG-RY World Wide RTTY Contest | RTTY |
| 10/04/2021 | 18:00 | 11/04/2021 | 23:59 | Georgia QSO Party | CW/Phone |
| 10/04/2021 | 21:00 | 11/04/2021 | 21:00 | The Yuri Gagarin International DX Contest | CW |
| 11/04/2021 | 07:00 | 11/04/2021 | 11:00 | DIG QSO Party (80m-40m) | CW |
| 14/04/2021 | 19:00 | 14/04/2021 | 20:00 | CWops Tests (CWT) | CW |
| 16/04/2021 | 21:00 | 17/04/2021 | 21:00 | Holyland DX Contest | ALL |
| 17/04/2021 | 05:00 | 17/04/2021 | 08:59 | ES Open HF Championship | CW/SSB |
| 17/04/2021 | 07:00 | 18/04/2021 | 06:59 | YU DX Contest | CW/SSB |
| 17/04/2021 | 09:00 | 18/04/2021 | 23:59 | CQ Manchester Mineira DX Contest | CW |
| 17/04/2021 | 12:00 | 17/04/2021 | 23:59 | PACCdigi Contest | RTTY/FT8 |
| 17/04/2021 | 16:00 | 18/04/2021 | 04:00 | Michigan QSO Party | CW/SSB |
| 17/04/2021 | 18:00 | 18/04/2021 | 18:00 | Ontario QSO Party | CW/Phone |
| 21/04/2021 | 19:00 | 21/04/2021 | 20:00 | CWops Tests (CWT) | CW |
| 24/04/2021 | 12:00 | 25/04/2021 | 12:00 | SP DX RTTY Contest | RTTY |
| 24/04/2021 | 13:00 | 25/04/2021 | 12:59 | Helvetia DX Contest | ALL |
| 24/04/2021 | 16:00 | 25/04/2021 | 21:59 | Florida QSO Party | CW/Phone |
| 26/04/2021 | 00:00 | 30/04/2021 | 23:59 | EUCW/FISTS QRS Party | CW |
| 28/04/2021 | 19:00 | 28/04/2021 | 20:00 | CWops Tests (CWT) | CW |
| 28/04/2021 | 20:00 | 28/04/2021 | 21:00 | UKEICC 80m contests | CW |
(*) see: "HF" > "Fieldday News"
(**) see: "HF" > "Contest Rules"
