The
Eastern Iowa DX Bulletin
Number
288, August 22, 2025
Craig Fastenow, KØCF, Editor
This bulletin is a compilation of currently active DX operations (or those that will become active within the current week) from recent issues of the three DX bulletins listed below and other sources. Credit for the source is given at the end of each article.
Articles are ordered by the entity's callsign prefix from the ARRL DXCC Entities List. Callsigns used are in bold with dates of operation highlighted in red. Clickable links are provided for QSL and other information wherever possible. Note that articles may be edited for grammar, language, style and accuracy and will remain in The Bulletin while active; articles that are announcements of ongoing operations, or that have no specified end date, will be removed after three weeks.
Also included is a Propagation section, updated daily; and a Contest Calendar of upcoming popular contests.
DX News
items are courtesy of:
The ARRL DX Bulletin
This bulletin is available via email
subscription only. See
http://www.arrl.org/bulletins
to subscribe. (The online archive is no
longer updated.)
425 DX News, A.R.I. DX Bulletin (425DXN)
Edited by Mauro Pregliasco, I1JQJ
& Valeria Pregliasco, IK1ADH
425 DX News Home Page: https://www.425dxn.org/
425 DX News Google Group: https://groups.google.com/g/425eng
DX Newsletter (DXNL)
Edited by Andreas Salder, DK5ON
A weekly service of DARC Committee
"DX", http://www.darcdxhf.de
Propagation data is from:
National Oceanic and
Atmospheric Administration's
Space Weather Prediction
Center
Dr. Tony Phillips' SpaceWeather.com,
used by permission
Contest data
courtesy of the WA7BNM
Contest Calendar
DX
News
4U/ITU, ITU HQ.
Special callsign 4UØITU
continues to mark the 160th anniversary of the ITU until the end of 2025,
operating from the 4U1ITU club station.
-[DXNL # 2471 August 13, 2025] (0815-0905)
5B, CYPRUS.
Paul, GØKPH, is QRV as 5B4ARQ
from Paphos (AS-004) for
3 weeks. Activity is on the HF bands using some CW, SSB,
and mostly FT8. QSL via LoTW.
-[ARRL DX Bulletin # 32 August 7, 2025] (0808-0829)
5H, TANZANIA. Chas, NK8O will be QRV as 5H3DX from August 31st to September 21st. Activity will be in his spare time on 30 to 10 meters using CW, FT8, and FT4. QSL via LoTW.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0926)
5H, TANZANIA.
Alex, SQ9UM is QRV as 5H1UM
until August 24th.
Activity is holiday style on the HF bands using SSB and FT8. QSL to SQ9UM, ClubLog's OQRS.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0829)
8R, GUYANA.
Aldir, PY1SAD, is QRV as 8R1TM
until September 23rd.
Activity is on 160 to 10 meters using CW, SSB, and various digital
modes. This includes some Satellite activity as well. QSL to PY1SAD, LoTW.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0926)
9A, CROATIA.
Special callsign 9A169TESLA
will be used until
December 31st
in celebration of the 169th anniversary of the birth of Nikola Tesla
(July 10, 1856). QSOs will be uploaded to LoTW, ClubLog, and QRZ
Logbook.
-[425DXN # 1786 July 26, 2025] (0725-0829)
9M2, WEST
MALAYSIA. In celebration of Malaysia's national holiday,
special event stations 9M25MA,
9M25MB, 9M25MC, 9M25MD, 9M25MJ, 9M25MK, 9M25MM, 9M25MN, 9M25MP, 9M25MR, 9M25MT, and 9M25MW are QRV until September 30th.
QSL via operators' instructions.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-1003)
9M2, WEST
MALAYSIA.
Celebrating the 68th anniversary of Malaysia's independence (August 31,
1957), members of Terengganu DX (West Malaysia) will be active as 9M1957M from August 1st to September 30th.
They will operate SSB, CW and FT8 on 80-10 meters. QSL direct to 9M2RDX (see https://www.qrz.com/db/9M1957M).
-[425DXN # 1785 July 19, 2025] (0801-1003)
9M6, EAST
MALAYSIA. In celebration of Malaysia's national holiday,
special event stations 9M25MS
and 9M25MQ
are QRV from Sabah and Sarawak, respectively until September 30th.
QSL via operators' instructions.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-1003)
A9, BAHRAIN.
Members of the Bahrain Amateur Radio Society celebrate the IARU
centenary with special call sign A91ØØIARU,
and the 75th anniversary of IARU Region 1 with special call sign A975IARU. They are
active 6 to 10 days each month. QSL via EC6DX.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0905)
CE9, ANTARCTICA.
Alex, DL2ALY, is currently QRV as DPØGVN
from the Neumayer III station (AN-16). QSL via DL4BBH.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0905)
CEØ, EASTER I.
Jorge, CEØYHF,
remains on the air until
the end of August. QSL direct to: Jorge Jana, Alcoy 2270,
Parque Alcantara, P.O. Box 36, Puente Alto, 8206219 Santiago, Chile
-[DXNL # 2471 August 13, 2025] (0815-0829)
CN, MOROCCO.
Michel, F5LRL will be QRV as CN2DX
near Kenitra from June
25th to August 30th.
Activity is on 40 to 6 meters using CW, SSB, and FT8 generally during
his early morning (0500-1000 UTC) and evening (1800-2200 UTC) hours.
QSL via F5LRL.
-[ARRL DX Bulletin # 25 June 19, 2025] (0620-0829)
CU, AZORES. Watch for CU6/EA3QP to be on the air from Pico Island (EU-175) from August 21st to 28th. QRV on HF on SSB and digital modes.
-[DXNL # 2472 August 20, 2025] (0822-0829)
CX, URUGUAY.
Special event callsign CW2ØØDI
is for members of Radio Club Uruguayo to celebrate the bicentennial of
Uruguayan declaration of independence (August 25, 1825) from August 20th to September 18th.
QSL via the bureau, LoTW, or direct to CX1AA.
-[425DXN # 1789 August 16, 2025] (0815-0919)
D4, CAPE VERDE.
Special station D45ØICV
celebrates the 50th anniversary of Cape Verde's independence until the end of the year.
QSL via IK2NCJ.
-[DXNL # 2471 August 13, 2025] (0815-0905)
DXCC TOP TWENTY. Here are the top 20 entities on ClubLog’s "DXCC Most Wanted" list as of August 22, 2025:
1. P5 DPRK (North Korea) 11. VKØM Macquarie Island
2. BS7H Scarborough Reef 12. KH4 Midway Island
3. CEØX San Felix Islands 13. PYØS Saint Peter And Paul Rocks
4. BV9P Pratas
Island 14.
KP5 Desecheo Island
5.
KH7K Kure
Island 15.
VPØS South Sandwich Islands
6.
KH3 Johnston Island 16.
ZL9 New Zealand Subantarctic Islands
7. 3Y/P Peter 1 Island 17. FK/C Chesterfield Islands
8. FT5/X Kerguelen Island 18. VKØH Heard Island
9. YVØ Aves
Island 19.
FT/T Tromelin Island
10. 3Y/B Bouvet Island 20. EZ Turkmenistan
For the complete list, see https://clublog.org/mostwanted.php
-[KØCF August 22, 2025 (0822-0912)
E6, NIUE. Gavin, ZL3GAV, is QRV as E6SP until August 31st. QSL to ZL3GAV.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0905)
EA8, CANARY IS.
Leigh, MØKZT, will be QRV as EA8/MØKZT
from August 18th to
25th from Corralejo, POTA ES-0216. QSL to MØKZT.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0829)
ES, ESTONIA. Jacek, SP5APW/ES will be active from Kihnu Island (ES8, EU-178) on August 26th-29th. He will focus on 6 meters, but "I don't rule HF activity out", he says. QSL via ClubLog's OQRS.
-[425DXN # 1790 August 23, 2025] (0822-0829)
FO, FRENCH POLYNESIA. David, F1SXC and Herve, F4DPA will be active as TX14TOM from Tai'arapu-Est, Tahiti (OC-046), French Polynesia on August 17th-31st. See https://log-et-qsl.associations-radioamateurs.org/wp/ for log search and eQSL. QSL via LoTW.
-[425DXN # 1790 August 23, 2025] (0822-0905)
H4Ø, TEMOTU
PROVINCE. Lance, W7GJ will be active as H4ØGJ from Pigeon
Island (OC-065), Temotu Province on August 8th-27th.
This will be a 6m EME DXpedition, using Q65-60A in the "Q65 Pileup"
mode. For detailed information & instructions, see https://www.bigskyspaces.com/w7gj/H40%202025.htm.
"When I am not aimed up at the moon, I will be monitoring 50.313 on FT8
mode", Lance says. "Please take the initiative to call my direction
when you think there may be ionospheric propagation. If propagation is
good and there are many callers, I may switch to FT4 or FT8 F/H on a
frequency to be announced". Bookmark https://www.facebook.com/lance.collister/
for updates. QSL via LoTW, or direct to W7GJ.
-[425DXN # 1779 June 7, 2025] (0808-0829)
HL, SOUTH KOREA.
Special event station HL8ØV
will be QRV during the month
of August to mark the 80th anniversary of South Korea's
liberation. QSL via bureau.
-[ARRL DX Bulletin # 31 July 31, 2025] (0801-0829)
I, ITALY.
ARI section Fidenza honors Marconi's memory with the following
callsigns during 2025: II4LDMA
in August; II4RADS
in September; II4WLTX
in October; II4EACC
in November; II4TJTB
in December. QSL via IQ4FE and LoTW.
-[DXNL # 2471 August 13, 2025] (0815-0905)
LA, NORWAY.
The special event callsign LA1ØØA
commemorates the first amateur radio contact between Norway and the USA
in 1925. On November 25, 1925 Johannes Diesen (LA1A) conducted that
first QSO with U1YB at Dartmouth College (NH), USA.
-[DXNL # 2471 August 13, 2025] (0815-0905)
OH, FINLAND.
Special station OH1ØØIARU
(ops OH2BCI, OH2BH, OH2KI, OH2KM, OH2KW, OH3JR, OH5BM, OH5BQ, and
OH7GGX) continues to celebrate IARU's centenary until the end of 2025.
QSL via bureau or direct via OH3JR.
-[DXNL # 2471 August 13, 2025] (0815-0905)
OHØ, ALAND IS.
A group of operators will be QRV as OGØC
from August 17th to
24th. Activity will be on 160 meters to 70 centimeters
using CW, SSB, JT65, MSK144, FT8, and FT4. QSL direct to OH5CW or LoTW.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0829)
OJØ, MARKET REEF. Markus, OH1MN will be active as OJØMN from Market Reef (EU-053) on August 25th-30th. He will operate SSB, CW and digital modes on the HF bands, 6 and 4 meters. QSOs will be uploaded to Club Log. QSL via OH1MN.
-[425DXN # 1789 August 16, 2025] (0822-0829)
PY, BRAZIL.
Special station PW2PF
(operators Renato/PY2TIM, Lupercio/PU2TNT, Marcelo/PY2MDF,
Marcelo/PU2USM, Ronaldo/PS8RV, Alex/PY2WAS, and Marcelo/PY2AE)
activates the Porto Ferreira State Park (WWFF PYFF-0362) on August 16th, 17th, 23rd, and
24th.
-[DXNL # 2471 August 13, 2025] (0815-0829)
SM, SWEDEN.
The radio club SK3GK
commemorates the first radio broadcast from the city Gaevle in 1925 until the end of the year.
QSL via bureau.
-[DXNL # 2471 August 13, 2025] (0815-0905)
SV5, DODECANESE.
Darrell, N3JWJ, will be QRV as SV5/N3JWJ
from Rhodes Island on August
17th to 25th. Activity is on the HF bands using FT8. QSL
via LoTW.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0829)
T3Ø, WEST
KIRIBATI. Members of the Rebel DX Group are QRV as T3ØTTT from North
Tarawa until
September 8th. Activity is on 160 to 6 meters using CW,
SSB, FT8, and FT4 with up to 10 stations active. QSL via LoTW.
-[ARRL DX Bulletin # 25 June 19, 2025] (0620-0905)
TJ, CAMEROON.
Darek, SP3GDH is QRV as TJ1GD
while here working on humanitarian missions. He has been active in his
spare time on 40 to 10 meters using FT8. This includes some activity on
Satellite QO-100. QSL via SP3EOL.
-[ARRL DX Bulletin # 32 August 7, 2025] (0808-0829)
TY, BENIN.
Antonio, IK7WUL plans to be QRV as TY2AA
from August 18th to
September 7th. Activity will be in his spare time on 20
meters using SSB. QSL via I8KHC, LoTW.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0905)
UA, EUROPEAN RUSSIA. Special event station R1ØØGQ is QRV until September 7th to commemorate the 100th anniversary of the city of Shchelkovo. QSL via bureau.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0912)
UAØ, ASIATIC
RUSSIA. Anton, RGØC, is currently operating from Ptichiy
(Bird Island; (AS-044) RR-13-30) as RGØC/p
on 20m CW with QRP power. The duration of his stay depends on weather
conditions. An additional one-day trip to Malyy Shantar in the same
group is also possible. QSL via RN3RQ.
-[DXNL # 2471 August 13, 2025] (0815-0905)
VE, CANADA.
Celebrating the International Amateur Radio Union's 100th anniversary,
members of the Atlantic Coast DX & Contest Group will be active
as CG9IARU throughout August.
They will conduct special activations of Parks on the Air (POTA), World
Wide Flora & Fauna (WWFF), and Canadian Historical Sites On the
Air
locations, alongside other commemorative events. See https://www.qrz.com/db/CG9IARU
for more information. QSL via VE9CF.
-[425DXN # 1786 July 26, 2025] (0801-0829)
VK, AUSTRALIA. Special event station VI1ØØSIG is QRV until September 3rd to commemorate the 100th anniversary of the Australian Army Signal Corps. QSL via MØOXO's OQRS.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0905)
VK9L, LORD HOWE I. Janusz, SP9FIH will be active as VK2/SP9FIH from Lord Howe Island (OC-004) from August 27th to September 13th. Plans are to operate SSB and FT8 (FH/SF) on 30, 20, 17, 15, 12 and 10 meters. See https://vk9.dxpeditions.org/
for more information. Reminder: according to the Australian
Communications and Media Authority's updated "Amateur Radio Call Sign
Policy", VK9 prefixed callsigns can be used only by operators located
in an Australian External Territory other than the Antarctic. Lord Howe
Island is part of New South Wales, hence the use of VK2/homecall. QSL
via ClubLog's OQRS (direct requests for QSL will be uploaded to LoTW
within few days, bureau requests will be uploaded after 12 months).
-[425DXN # 1787 August 2, 2025] (0822-0912)
XE, MEXICO.
Special call sign 4A2MAX
will be QRV during the month
of August
in remembrance of St. Maximilian Maria Kolbe. Activity will be on 80 to
6 meters using CW, SSB, and various digital modes. QSL via LoTW or EA5GL.
-[ARRL DX Bulletin # 31 July 31, 2025] (0801-0829)
XU, CAMBODIA.
Franco, IUØCRW, is QRV as XU7AKP
from Kampong Thom. Activity is on 40 to 10 meters using CW, SSB, and
occasionally the digital mode Olivia. QSL via IUØCRW.
-[ARRL DX Bulletin # 32 August 7, 2025] (0808-0829)
XW, LAOS. Simon, G6JFY, is QRV as XWØLP from Luang Prabang. Activity is currently on 12 and 10 meters. He may soon be active on 40 meters as well. QSL via MØOXO's OQRS.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0912)
YJ, VANUATU. Chris, VK2YUS, is QRV as YJØCA from Port Vila until August 30th. Activity is mainly from 2100 to 1000z on 40 to 10 meters using SSB. QSL to VK2YUS.
-[ARRL DX Bulletin # 34 August 21, 2025] (0822-0829)
YO, ROMANIA. Members of the Federatia Romana de Radioamatorism (FRR) will be active as YO2Ø25ENESCU from August 24th to September 21st,
during the George Enescu International Festival and Competition. Held
in Bucharest since 1958, the Festival honors and celebrates the memory,
the music and the personality of Romanian composer, pianist, violinist
and conductor George Enescu (1881-1955). Certificates and eQSL will be
available on https://hamlog.online/.
-[425DXN # 1789 August 16, 2025] (0822-0926)
YO, ROMANIA.
Special callsign YR16ØØVT
will be used by members of Radio Club YO6KGS until March 31, 2026,
to
popularize Via Transilvanica, the long-distance trail (1600 km) used
for hiking, cycling and horse riding that crosses Romania. More
information can be found on https://www.qrz.com/db/YR1600VT.
QSL via eQSL.
-[425DXN # 1788 August 9, 2025] (0808-0905)
Z8, SOUTH SUDAN.
Diya, YI1DZ is back in Juba and QRV as Z81D mostly during
his weekends. Activity is on various HF bands using SSB and FT8. QSL
via OM3JW.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0905)
ZL, NEW ZEALAND.
Special callsign ZL1ØØC
celebrates the centenary of the New Zealand Association of Radio
Transmitters (NZART), which was formed on August 16, 1926. The callsign
is valid until
August 6, 2026.
QSL via the bureau and LoTW.
-[425DXN # 1789 August 16, 2025] (0815-0905)
ZS, SOUTH AFRICA.
Special event stations ZS1ØØSARL,
ZS6SRL, and ZS9HQ are QRV until the end of 2025
to celebrate the 100th anniversary of the South African Radio League.
QSL via bureau.
-[ARRL DX Bulletin # 33 August 14, 2025] (0815-0905)
Propagation (Updated daily)
The Weekly Solar Data chart plots Solar Flux Index (SFI), Sunspot number (SSN) and Planetary K-Index (Kp) for the past 8 days. With 8 Planetary K-index readings each day, only the minimum, average and maximum K-index values are plotted. Note: You may click here or on the chart above to see the same data for the past month.
The Daily Solar Flux Index, Sunspot number, Planetary
K-index,
Solar Flux predictions and Solar Flare data used in this bulletin have
been collected by
KØCF from the U.S. Department of Commerce's NOAA
Space Weather Prediction Center.
The propagation graphs above are the creations of KØCF and are unique
in space weather reporting.
Please Note: The graphs are high resolution .PNG files which you may view in greater detail using your browser's "zoom" feature. Alternatively, right click on the graph and select "Open Image in New Tab" to enlarge it, or "Save Image As..." to save it to your computer for further analysis.
|
NASA's current view of the Sun at a wave- length of 131 Angstroms. This wavelength shows incredible solar detail. Click here or on the image to view as a full screen 48-hour video loop. It is fascinating! |
 |
Propagation
Summary
For the 8 day period from Thursday, August 14th through yesterday,
August 21st.
The average solar flux was 119, down 25 points from the previous week,
with a weekly high of 130 on Thursday, August 14th, followed by
a low of 114 on August 18th.
The average sunspot count was 84, down by 74 from last week,
peaking at 170 on Thursday, August 14th followed by a
weekly low of 36 on August 19th.
The Planetary K-index weekly average was 3.0 with a
maximum of 4.7 on Tuesday, August 19th, indicating
generally quiet geomagnetic conditions. Yesterday's K-index maximum was
2.7 with generally quiet conditions.
Solar flare activity since August 15th has been quiet with only 1
major flare, which was an M 1.1 event on Tuesday, August 19th.
Propagation
Data
Major solar flares, Friday, August 15th through 1338 UTC, August 22nd.
| # | Date | UTC | Mag. |
|---|---|---|---|
| 1 | Aug 19 | 0439 | M 1.1 |
(NOAA's graph of recent flare activity: GOES-X-Ray-Flux)
From the NOAA Space Weather Prediction
Center,
here are the probabilities of major solar flares and the predicted 10.7
cm Solar Flux for the next 3 days. NOAA updates this information daily.
| Date | M-Flares | X-Flares | Solar Flux |
|---|---|---|---|
| Aug 22 | 15% | 1% | 125 |
| Aug 23 | 20% | 1% | 125 |
| Aug 24 | 25% | 5% | 130 |
Looking farther ahead, here is the NOAA Space Weather Prediction Center forecast of 10.7 cm radio flux and maximum Planetary K-index (Kp) for the next 12 days. This data is updated by NOAA every Monday (last updated on August 18, 2025).
|
|
|
Geomagnetic
Storm Watch
The
action started yesterday. Minor G1-class
geomagnetic storms broke out on Aug. 19th
when Earth entered a fast-moving stream of solar wind. The action could
intensify today. NOAA forecasters expect a CME to graze Earth's
magnetic field on Aug. 20th, potentially
boosting storm levels to G2.
High-latitude sky watchers should remain alert for auroras after local
nightfall.
(Copyright © SpaceWeather.com August 20, 2025.
Republished by
permission.)
Global
D Region Absorption
Conditions in the D-region of the ionosphere
have a dramatic effect on HF communications. The D-Region Absorption
map combines the effects of solar particles and
photons. Yellow to red colors on the map depict increasing signal
attenuation, where the bar chart at the right displays attenuation
versus frequency. Click the
thumbnail below for an animated map of D-Region Absorption:
The Aurora
Borealis
The aurora is not only beautiful to see but can have a
profound impact on HF and VHF radio propagation. For the HF operator,
auroras can result in a complete shut-down of propagation. However, on
VHF, auroras present interesting DX possibilities. Beam antennas are
very desirable and should be pointed north, towards the aurora. Signals
are reflected by “back-scatter” and will be distorted with a rough
buzz. SSB is the best voice mode to use, but copy can be difficult. CW
will have a rough buzzy sound but be perfectly copyable. Click the
thumbnail below for an animated map of aurora versus time:
Highs
for Cycle 25
Solar Flux: 336 on
August 8, 2024.
Sunspots: 382 on August
10, 2024.
Popular
Propagation web sites
https://prop.kc2g.com/
(Excellent Maximum Usable Frequency map)
NOAA https://www.swpc.noaa.gov/
https://www.spaceweather.com/
https://www.solarham.com/
https://dx.qsl.net/propagation/
A Propagation
Tutorial
The solar X-ray flux tracks solar activity and solar flares.
Solar
flux, which can vary from as low as 50 to as high as 300, influences
the level of ionization in the F2 region of the ionosphere, providing a
very good prediction of HF DX conditions. The higher the solar flux,
the better conditions will be for the higher HF frequencies and even 6
meters. However, the levels need to be maintained for some days to
allow ionization in the F2 layer to build up. A solar flux of 150
results in good HF band conditions, while levels of 200 and up can
provide great conditions.
Large X-ray flares on the sun can
increase the ionization of the D layer of the ionosphere (a lower
layer) on the sunlit side of the Earth, greatly attenuating or blocking
HF radio transmissions for up to a half hour. Solar flares often
produce Coronal Mass Ejections (CMEs) which, if Earth directed, can
lead to geomagnetic storms. Some large flares are also accompanied by
strong radio bursts that may interfere with other radio frequencies and
cause problems for satellite communication and radio navigation (GPS).
The
Planetary K-index is a measure of the magnitude of geomagnetic storms
and is an excellent indicator of disturbances in the Earth's magnetic
field. A level of 1 or 2 represents quiet geomagnetic conditions; a
reading of 3 or 4 may cause some propagation deterioration; 5 and 6 are
minor to moderate geomagnetic storms; and 7 to 9 are strong, severe,
and extreme storm conditions. Strong geomagnetic storms can trigger
Auroral displays and cause HF radio blackouts. Higher geomagnetic
activity also has the adverse effect of lowering maximum usable
frequencies, much like lower solar flux does.
For
best conditions, the solar flux should be above 150 for a few days with
the K index below 2. When these conditions are met, some good DX is
likely!
-[Compiled from information on NOAA.gov and other sources]
Contest Calendar
Weekly Contests
| Contest | Start UTC | End | Web Site | |
|---|---|---|---|---|
| K1USN Slow Speed Test | Monday | 0000Z | 0100Z | Rules |
| ICWC Medium Speed Test | Monday | 1300Z | 1400Z | Rules |
| Monday | 1900Z | 2000Z | ||
| Tuesday | 0300Z | 0400Z | ||
| CWops Test (CWT) | Wednesday | 1300Z | 1400Z | Rules |
| Wednesday | 1900Z | 2000Z | ||
| Thursday | 0300Z | 0400Z | ||
| Thursday | 0700Z | 0800Z | ||
| Weekly RTTY Test | Friday | 0145Z | 0215Z | Rules |
| NCCC CW Sprint (NS) | Friday | 0230Z | 0300Z | Rules |
Sunday at 7:00 PM in the Central Daylight Saving Time zone, or
Sunday at 6:00 PM in the Central Standard Time zone.
Full Calendar
| Contest | Start | End | Web Site | ||
|---|---|---|---|---|---|
| Ohio QSO Party | Aug 23 | 1600Z | Aug 24 | 0400Z | Rules |
| YO DX HF Contest | Aug 30 | 1200Z | Aug 31 | 1200Z | Rules |
| World Wide Digi DX Contest | Aug 30 | 1200Z | Aug 31 | 1200Z | Rules |
| Kansas QSO Party | Aug 30 | 1400Z | Aug 31 | 2000Z | Rules |
| Tennessee QSO Party | Sep 7 | 1700Z | Sep 8 | 0300Z | Rules |
| ARRL September VHF Contest | Sep 13 | 1800Z | Sep 15 | 0300Z | Rules |
| Scandinavian Activity Contest, CW | Sep 20 | 1200Z | Sep 21 | 1200Z | Rules |
| New Jersey QSO Party | Sep 20 | 1400Z | Sep 21 | 0159Z | Rules |
| Texas QSO Party | Sep 20 | 1400Z | Sep 21 | 2000Z | Rules |
| Wisconsin Parks on the Air | Sep 20 | 1600Z | Sep 20 | 2300Z | Rules |
| Washington State Salmon Run | Sep 20 | 1600Z | Sep 21 | 2400Z | Rules |
| New Hampshire QSO Party | Sep 20 | 1600Z | Sep 21 | 2200Z | Rules |
| North American Sprint, RTTY | Sep 21 | 0000Z | Sep 21 | 0359Z | Rules |
| CQ Worldwide DX Contest, RTTY | Sep 27 | 0000Z | Sep 28 | 2400Z | Rules |
| Maine QSO Party | Sep 27 | 1200Z | Sep 28 | 1200Z | Rules |
| Oceania DX Contest, Phone | Oct 4 | 0600Z | Oct 5 | 0600Z | Rules |
| California QSO Party | Oct 4 | 1600Z | Oct 5 | 2200Z | Rules |
| QRP ARCI Fall QSO Party | Oct 11 | 0000Z | Oct 11 | 2359Z | Rules |
| Makrothen RTTY Contest | Oct 11 | 0000Z | Oct 12 | 1559Z | Rules |
| Nevada QSO Party | Oct 11 | 0300Z | Oct 12 | 2100Z | Rules |
| Oceania DX Contest, CW | Oct 11 | 0600Z | Oct 12 | 0600Z | Rules |
| Scandinavian Activity Contest, SSB | Oct 11 | 1200Z | Oct 12 | 1200Z | Rules |
| Arizona QSO Party | Oct 11 | 1500Z | Oct 12 | 0500Z | Rules |
| Pennsylvania QSO Party | Oct 11 | 1600Z | Oct 12 | 0400Z | Rules |
| Oct 12 | 1300Z | Oct 12 | 2200Z | ||
| South Dakota QSO Party | Oct 11 | 1800Z | Oct 12 | 1800Z | Rules |
| 10-10 Int. Fall Contest, CW | Oct 18 | 0001Z | Oct 19 | 2359Z | Rules |
| New York QSO Party | Oct 18 | 1400Z | Oct 19 | 0200Z | Rules |
| Worked All Germany Contest | Oct 18 | 1500Z | Oct 19 | 1459Z | Rules |
| Stew Perry Topband Challenge | Oct 18 | 1500Z | Oct 19 | 1500Z | Rules |
| Illinois QSO Party | Oct 19 | 1700Z | Oct 20 | 0100Z | Rules |
| ARRL School Club Roundup | Oct 20 | 1300Z | Oct 24 | 2359Z | Rules |
| CQ Worldwide DX Contest, SSB | Oct 25 | 0000Z | Oct 26 | 2400Z | Rules |
| ARRL Sweepstakes Contest, CW | Nov 1 | 2100Z | Nov 3 | 0300Z | Rules |
| WAE DX Contest, RTTY | Nov 8 | 0000Z | Nov 9 | 2359Z | Rules |
| 10-10 Int. Fall Contest, Digital | Nov 8 | 0001Z | Nov 9 | 2359Z | Rules |
| JIDX Phone Contest | Nov 8 | 0700Z | Nov 9 | 1300Z | Rules |
| OK/OM DX Contest, CW | Nov 8 | 1200Z | Nov 9 | 1200Z | Rules |
| ARRL Sweepstakes Contest, SSB | Nov 15 | 2100Z | Nov 17 | 0300Z | Rules |
| LZ DX Contest | Nov 22 | 1200Z | Nov 23 | 1200Z | Rules |
| North American SSB Sprint Contest | Nov 23 | 0000Z | Nov 23 | 0400Z | Rules |