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1
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RSGB FT4 International Activity Day
RSGB FT4 International Activity Day
April 1, 2023 3:00 am - 3:00 pm
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PODXS 070 Club PSK 31 Flavors Contest
PODXS 070 Club PSK 31 Flavors Contest
April 1, 2023 5:00 am - 11:00 pm
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EA RTTY Contest
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Georgia State Parks on the Air
Georgia State Parks on the Air
April 1, 2023 7:00 am - April 2, 2023 6:59 pm
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Florida State Parks on the Air
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Louisiana QSO Party
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Mississippi QSO Party
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Missouri QSO Party
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SP DX Contest
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2
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EA RTTY Contest
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Georgia State Parks on the Air
Georgia State Parks on the Air
April 1, 2023 7:00 am - April 2, 2023 6:59 pm
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SP DX Contest
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Florida State Parks on the Air
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Missouri QSO Party
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K1USN Slow Speed Test
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3
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ICWC Medium Speed Test
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OK1WC Memorial (MWC)
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ICWC Medium Speed Test
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RSGB 80m Club Championship, CW
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ARS Spartan Sprint
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Worldwide Sideband Activity Contest
Worldwide Sideband Activity Contest
April 3, 2023 8:00 pm - 8:59 pm
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ICWC Medium Speed Test
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4
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ZL Sprint
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Phone Weekly Test
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5
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A1Club AWT
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CWops Test (CWT)
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Mini-Test 40
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VHF-UHF FT8 Activity Contest
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Mini-Test 80
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CWops Test (CWT)
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UKEICC 80m Contest
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Walk for the Bacon QRP Contest
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CWops Test (CWT)
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6
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CWops Test (CWT)
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SARL 80m QSO Party
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NRAU 10m Activity Contest
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SKCC Sprint Europe
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NCCC RTTY Sprint
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Walk for the Bacon QRP Contest
Walk for the Bacon QRP Contest
April 6, 2023 9:00 pm - 10:00 pm
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NCCC Sprint
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7
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K1USN Slow Speed Test
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QRP ARCI Spring QSO Party
QRP ARCI Spring QSO Party
April 7, 2023 7:00 pm - April 8, 2023 1:00 am
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8
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QRP ARCI Spring QSO Party
QRP ARCI Spring QSO Party
April 7, 2023 7:00 pm - April 8, 2023 1:00 am
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JIDX CW Contest
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DIG QSO Party, CW
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IG-RY World Wide RTTY Contest
IG-RY World Wide RTTY Contest
April 8, 2023 7:00 am - April 9, 2023 1:00 pm
See more details
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OK/OM DX Contest, SSB
OK/OM DX Contest, SSB
April 8, 2023 7:00 am - April 9, 2023 7:00 am
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SKCC Weekend Sprintathon
SKCC Weekend Sprintathon
April 8, 2023 7:00 am - April 9, 2023 6:59 pm
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New Mexico QSO Party
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EU Sprint, SSB
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Georgia QSO Party
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Yuri Gagarin International DX Contest
Yuri Gagarin International DX Contest
April 8, 2023 4:00 pm - April 9, 2023 4:00 pm
See more details
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9
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JIDX CW Contest
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IG-RY World Wide RTTY Contest
IG-RY World Wide RTTY Contest
April 8, 2023 7:00 am - April 9, 2023 1:00 pm
See more details
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OK/OM DX Contest, SSB
OK/OM DX Contest, SSB
April 8, 2023 7:00 am - April 9, 2023 7:00 am
See more details
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SKCC Weekend Sprintathon
SKCC Weekend Sprintathon
April 8, 2023 7:00 am - April 9, 2023 6:59 pm
See more details
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Yuri Gagarin International DX Contest
Yuri Gagarin International DX Contest
April 8, 2023 4:00 pm - April 9, 2023 4:00 pm
See more details
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DIG QSO Party, CW
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WAB 3.5/7/14 MHz Data Modes
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Georgia QSO Party
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Hungarian Straight Key Contest
Hungarian Straight Key Contest
April 9, 2023 10:00 am - 11:00 am
See more details
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WAB 3.5/7/14 MHz Data Modes
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4 States QRP Group Second Sunday Sprint
4 States QRP Group Second Sunday Sprint
April 9, 2023 7:00 pm - 9:00 pm
See more details
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K1USN Slow Speed Test
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10
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ICWC Medium Speed Test
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DARC Easter Contest
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OK1WC Memorial (MWC)
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144 MHz Spring Sprint
144 MHz Spring Sprint
April 10, 2023 2:00 pm - 6:00 pm
Info - Time zone is local - not UTC
See more details
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ICWC Medium Speed Test
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Worldwide Sideband Activity Contest
Worldwide Sideband Activity Contest
April 10, 2023 8:00 pm - 8:59 pm
See more details
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ICWC Medium Speed Test
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11
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ZL Sprint
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NAQCC CW Sprint
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Phone Weekly Test
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12
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A1Club AWT
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CWops Test (CWT)
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Mini-Test 40
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VHF-UHF FT8 Activity Contest
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Mini-Test 80
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CWops Test (CWT)
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CWops Test (CWT)
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13
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CWops Test (CWT)
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EACW Meeting
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NCCC RTTY Sprint
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NCCC Sprint
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14
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K1USN Slow Speed Test
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Holyland DX Contest
Holyland DX Contest
April 14, 2023 4:00 pm - April 15, 2023 3:59 pm
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15
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Holyland DX Contest
Holyland DX Contest
April 14, 2023 4:00 pm - April 15, 2023 3:59 pm
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ES Open HF Championship
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Worked All Provinces of China DX Contest
Worked All Provinces of China DX Contest
April 15, 2023 1:00 am - April 16, 2023 12:59 am
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Dutch PACCdigi Contest
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YU DX Contest
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CQMM DX Contest
CQMM DX Contest
April 15, 2023 4:00 am - April 16, 2023 6:59 pm
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Nebraska QSO Party
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Texas State Parks on the Air
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Michigan QSO Party
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EA-QRP CW Contest
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Feld Hell Sprint
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North Dakota QSO Party
North Dakota QSO Party
April 15, 2023 1:00 pm - April 16, 2023 1:00 pm
See more details
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Ontario QSO Party
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16
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Worked All Provinces of China DX Contest
Worked All Provinces of China DX Contest
April 15, 2023 1:00 am - April 16, 2023 12:59 am
See more details
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YU DX Contest
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CQMM DX Contest
CQMM DX Contest
April 15, 2023 4:00 am - April 16, 2023 6:59 pm
See more details
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North Dakota QSO Party
North Dakota QSO Party
April 15, 2023 1:00 pm - April 16, 2023 1:00 pm
See more details
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EA-QRP CW Contest
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Ontario QSO Party
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Quebec QSO Party
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Nebraska QSO Party
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Texas State Parks on the Air
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ARRL Rookie Roundup, SSB
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Run for the Bacon QRP Contest
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K1USN Slow Speed Test
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17
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ICWC Medium Speed Test
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OK1WC Memorial (MWC)
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ICWC Medium Speed Test
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Worldwide Sideband Activity Contest
Worldwide Sideband Activity Contest
April 17, 2023 8:00 pm - 8:59 pm
See more details
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ICWC Medium Speed Test
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18
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ZL Sprint
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222 MHz Spring Sprint
222 MHz Spring Sprint
April 18, 2023 2:00 pm - 6:00 pm
Info - Time zone is local - not UTC
See more details
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Phone Weekly Test
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19
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A1Club AWT
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CWops Test (CWT)
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Mini-Test 40
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VHF-UHF FT8 Activity Contest
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Mini-Test 80
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CWops Test (CWT)
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RSGB 80m Club Championship, SSB
RSGB 80m Club Championship, SSB
April 19, 2023 2:00 pm - 3:30 pm
See more details
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Walk for the Bacon QRP Contest
Walk for the Bacon QRP Contest
April 19, 2023 7:00 pm - 8:00 pm
See more details
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CWops Test (CWT)
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20
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CWops Test (CWT)
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NTC QSO Party
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NCCC RTTY Sprint
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Walk for the Bacon QRP Contest
Walk for the Bacon QRP Contest
April 20, 2023 9:00 pm - 10:00 pm
See more details
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NCCC Sprint
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22
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QRP to the Field
QRP to the Field
April 22, 2023 3:00 am - 1:00 pm
Info - Time zone is local - not UTC
See more details
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SP DX RTTY Contest
SP DX RTTY Contest
April 22, 2023 7:00 am - April 23, 2023 7:00 am
See more details
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North American SSB Sprint Contest
North American SSB Sprint Contest
April 22, 2023 7:00 pm - 11:00 pm
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23
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SP DX RTTY Contest
SP DX RTTY Contest
April 22, 2023 7:00 am - April 23, 2023 7:00 am
See more details
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International Vintage Contest HF
International Vintage Contest HF
April 23, 2023 2:00 am - 6:00 am
See more details
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UA1DZ Memorial Cup
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International Vintage Contest HF
International Vintage Contest HF
April 23, 2023 10:00 am - 2:00 pm
See more details
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BARTG Sprint 75
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K1USN Slow Speed Test
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24
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ANZAC Day Contest
ANZAC Day Contest
April 24, 2023 7:00 am - April 25, 2023 6:59 am
See more details
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ICWC Medium Speed Test
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QCX Challenge
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OK1WC Memorial (MWC)
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ICWC Medium Speed Test
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QCX Challenge
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RSGB FT4 Contest
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Worldwide Sideband Activity Contest
Worldwide Sideband Activity Contest
April 24, 2023 8:00 pm - 8:59 pm
See more details
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ICWC Medium Speed Test
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QCX Challenge
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25
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ANZAC Day Contest
ANZAC Day Contest
April 24, 2023 7:00 am - April 25, 2023 6:59 am
See more details
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ZL Sprint
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SKCC Sprint
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Phone Weekly Test
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26
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A1Club AWT
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CWops Test (CWT)
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Mini-Test 40
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Mini-Test 80
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432 MHz Spring Sprint
432 MHz Spring Sprint
April 26, 2023 2:00 pm - 6:00 pm
Info - Time zone is local - not UTC
See more details
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CWops Test (CWT)
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UKEICC 80m Contest
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CWops Test (CWT)
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27
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CWops Test (CWT)
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RSGB 80m Club Championship, Data
RSGB 80m Club Championship, Data
April 27, 2023 2:00 pm - 3:30 pm
See more details
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NCCC RTTY Sprint
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NCCC Sprint
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28
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K1USN Slow Speed Test
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10-10 Int. Spring Contest, Digital
10-10 Int. Spring Contest, Digital
April 28, 2023 7:01 pm - April 30, 2023 6:59 pm
See more details
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29
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10-10 Int. Spring Contest, Digital
10-10 Int. Spring Contest, Digital
April 28, 2023 7:01 pm - April 30, 2023 6:59 pm
See more details
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UK/EI DX Contest, CW
UK/EI DX Contest, CW
April 29, 2023 7:00 am - April 30, 2023 7:00 am
See more details
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Helvetia Contest
Helvetia Contest
April 29, 2023 8:00 am - April 30, 2023 7:59 am
See more details
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Florida QSO Party
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30
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UK/EI DX Contest, CW
UK/EI DX Contest, CW
April 29, 2023 7:00 am - April 30, 2023 7:00 am
See more details
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Helvetia Contest
Helvetia Contest
April 29, 2023 8:00 am - April 30, 2023 7:59 am
See more details
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Florida QSO Party
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