UBA HF Contest Calendar - 04/2009
| Date Start | UTC Start | Date End | UTC End | Name | Mode | Results | Date/Rules |
| 2009-01-01 | 00:00 | 2009-12-31 | 23:59 | CQ DX Marathon | All | 2006 - 2007 | OK/OK |
| 2009-01-03 | 20:00 | 2009-04-04 | 20:00 | Russian SSTV contest | SSTV | 2006 - 2007 - 2008 | OK/OK |
| 2009-04-04 | 00:00 | 2009-04-05 | 23:59 | QRP ARCI Spring QSO Party | CW | 2006 - 2007 - 2008 | ?/? |
| 2009-04-04 | 00:00 | 2009-04-04 | 04:00 | LZ Open 40m Sprint Contest | CW | 2007 - 2008 | OK/? |
| 2009-04-04 | 15:00 | 2009-04-05 | 15:00 | SP DX Contest | CW/SSB | 2006 - 2007 - 2008 | OK/? |
| 2009-04-04 | 16:00 | 2009-04-05 | 16:00 | EA RTTY Contest | RTTY | 2006 - 2007 - 2008 | ?/? |
| 2009-04-06 | 01:00 | 2009-04-06 | 03:00 | ARS Spartan Sprint | CW | - | OK/OK |
| 2009-04-11 | 07:00 | 2009-04-12 | 13:00 | Japan International DX Contest | CW | 2006 - 2007 - 2008 | OK/? |
| 2009-04-11 | 12:00 | 2009-04-12 | 12:00 | Radio Maritime Communication Day | CW | - | OK/? |
| 2009-04-11 | 16:00 | 2009-04-11 | 19:59 | EU Sprint Spring | CW | Results | OK/OK |
| 2009-04-12 | 06:00 | 2009-04-12 | 10:00 | UBA Spring Contest NL FR EN DL | SSB | 2006 - 2007 - 2008 | OK/OK |
| 2009-04-18 | 00:00 | 2009-04-18 | 23:59 | Holyland DX Contest | ALL | 2006 - 2007 - 2008 | ?/? |
| 2009-04-18 | 00:00 | 2009-04-18 | 24:00 | TARA Skirmish Digital Prefix Contest | DIGITAL | 2006 - 2007 - 2008 | ?/? |
| 2009-04-18 | 05:00 | 2009-04-18 | 08:59 | ES Open HF Championship | CW/SSB | 2006 - 2007 - 2008 | OK/OK |
| 2009-04-18 | 16:00 | 2009-04-18 | 19:59 | EU Sprint Spring | SSB | Results | OK/OK |
| 2009-04-18 | 17:00 | 2009-04-18 | 20:00 | EA-QRP CW Contest (1) | CW | 2006 - 2007 - 2008 | OK/? |
| 2009-04-18 | 20:00 | 2009-04-18 | 23:00 | EA-QRP CW Contest (2) | CW | 2006 - 2007 - 2008 | OK/? |
| 2009-04-19 | 07:00 | 2009-04-19 | 11:00 | EA-QRP CW Contest (3) | CW | 2006 - 2007 - 2008 | OK/? |
| 2009-04-19 | 11:00 | 2009-04-19 | 13:00 | EA-QRP CW Contest (4) | CW | 2006 - 2007 - 2008 | OK/? |
| 2009-04-25 | 12:00 | 2009-04-26 | 12:00 | SP DX RTTY Contest | RTTY | 2006 - 2007 - 2008 | OK/OK |
| 2009-04-25 | 13:00 | 2009-04-26 | 12:59 | Helvetia DX Contest | ALL | 2006 - 2007 - 2008 | OK/OK |
| 2009-04-27 | 00:00 | 2009-05-01 | 23:59 | EUCW/FISTS QRS Party | CW | 2006 - 2007 - 2008 | OK/OK |
+ = next year's contest rules
