The
Eastern Iowa DX Bulletin
Number
281, July 4, 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 (The online archive is no
longer updated.)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
8R, GUYANA.
Aldir, PY1SAD is QRV as 8R1TM
until July 10th.
Activity is on 160 to 6 meters using CW, SSB, and various digital
modes, as well as on various Satellites, during the weekdays between
2300z and 0200z. QSL to PY1SAD.
-[ARRL DX Bulletin # 23 June 5, 2025] (0606-0711)
9M6, EAST
MALAYSIA. Special event station 9M4WWA will be QRV
from Sarawak Borneo from June
30th to July 6th during the 2025 World Wide Award Sprint.
QSL via https://hamaward.cloud/
and QRZ.COM only.
-[ARRL DX Bulletin # 26 June 26, 2025] (0627-0711)
A4, OMAN.
Special event station A43WWA is QRV until July 6th
during the Sprint World Wide Award chase. Activity is on the HF bands
using CW, SSB, and various digital modes. QSL via EC6DX.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
A9, BAHRAIN.
Special event station A91WWA
is QRV until July 6th
during the Sprint World Wide Award chase. Activity is on the HF bands
using CW, SSB, and various digital modes. QSL via EC6DX and LoTW.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
C9, MOZAMBIQUE.
A team from the Russian Robinson Club (R7AL, UA3QLC, and OK8AU) will be
QRV as C94RRC
from Inhacamba Island (AF-103) from July 5th to 11th
on CW, SSB, and FT8. QSL only via ClubLog's OQRS.
-[DXNL # 2465 July 2, 2025] (0704-0711)
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)
DL, GERMANY.
Special callsign DLØSOP
will be active on
July 1st-31st for the 67th edition of the Sea of Peace
Award (see https://dl0sop.darc.de/
for full details). QSL via ClubLog's OQRSS,
LoTW and eQSL.
-[425DXN # 1782 June 28, 2025] (0627-0801)
DXCC TOP TWENTY.
Here are the top 20 entities on ClubLog’s "DXCC Most Wanted" list as of
July 3, 2025:
1. P5 DPRK
(North Korea) 11. 3Y/B Bouvet
Island
2. BS7H Scarborough
Reef 12.
VKØM Macquarie Island
3. CEØX San Felix
Islands 13.
KH4 Midway Island
4. BV9P Pratas
Island 14.
PYØS Saint Peter And Paul Rocks
5. KH7K Kure
Island
15. KP5 Desecheo Island
6.
KH3 Johnston
Island 16.
VPØS South Sandwich Islands
7. 3Y/P Peter 1
Island 17.
ZL9 New Zealand Subantarctic
Islands
8. FT5/X Kerguelen
Island 18.
FK/C Chesterfield Islands
9. YVØ Aves
Island
19. VKØH Heard Island
10. EZ
Turkmenistan 20.
FT/T Tromelin Island
For the complete list, see
https://clublog.org/mostwanted.php
-[KØCF July 4, 2025 (0704-0725)
EI, IRELAND.
Gordon, G3PXT will be active as EJ3VP
from Arranmore Island (EU-121) from June 25th to July 2nd,
and from Inisheer Island (EU-006) on July 25th-30th,
IOTA Contest included. He will operate SSB on 80-6 meters. These
operations are part of a three-month tour of Ireland (EI/G3PXT/p and
EI3VP/p) and Northern Ireland (GI3PXT/p) that started on June 4th and
will end on September 5th.
-[425DXN # 1782 June 28, 2025] (0627-0801)
F, FRANCE.
Special callsign TM5VDL
will be active on July
5th-19th from Dunkirk during the second stage of this
year's edition of the Tall Ships Races. QSL via F8KGS.
-[425DXN # 1783 July 5, 2025] (0704-0725)
F, FRANCE.
Nicolas, F4HCG will be active as F4HCG/p
from Noirmoutier Island (EU-064) on July 5th-18th.
He will operate SSB on 80, 40, 20, 15 and 10 meters.
-[425DXN # 1782 June 28, 2025] (0704-0718)
F, FRANCE.
French special callsigns to be activated for this year's 112th edition
of the Tour de France include:
TM25TDF
by Radio Club Emettre from July
2nd to 26th, QSL via F5KMY.
TM59TDF
by Radio Club de l'Agglomeration Dunkerquoise on July 5th-19th,
QSL via F8KGS and eQSL
TM112TDF
by F8GGZ from July
5th to 26th, QSL via eQSL only.
-[425DXN # 1782 June 28, 2025] (0627-0725)
F, FRANCE.
Special callsigns TM1ØØI,
TM1ØØA, TM1ØØR and TM1ØØU by the Radio
Club Pierre Coulon (F5KMB) celebrate the centenary of the International
Amateur Radio Union from April
12th to July 13th. QSL via eQSL only; paper cards will not
be provided.
-[425DXN # 1771 April 12, 2025] (0411-0711)
FP, ST. PIERRE
& MIQUELON. Once again Eric, KV1J will be active
as FP/KV1J
from Miquelon Island (NA-032) from June 28th to July 14th,
including activity in the IARU HF World Championship (July 12th-13th).
He plans to operate SSB and FT8, plus some CW and FT4, on 80-6 meters,
"generally on the highest frequency band open" with a focus on 12, 10
and 6m. See http://www.kv1j.com/fp/July25.html
for more information. This trip is in memory of Jean-Pierre, FP5CJ, who
passed away in September 2024. QSL via LoTW, ClubLog's OQRS,
eQSL, or via KV1J.
-[425DXN # 1780 June 14, 2025] (0627-0718)
FR, REUNION I.
Phil, FR8UA is QRV as TOØWWA
until July 6th
during the Sprint World Wide Award chase. QSL via LoTW.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
HB, SWITZERLAND. The 2025 UEFA
Women's Championship will run from July 2nd to 27th
in Switzerland, and eight special event stations will be active from
the host cities throughout July:
HB2Ø25BA
(Basel),
HB2Ø25BE
(Bern),
HB2Ø25GE
(Geneve),
HB2Ø25LU
(Lucerne),
HB2Ø25SG
(St. Gallen),
HB2Ø25SI
(Sion),
HB2Ø25TH
(Thun), and
HB2Ø25ZH
(Zurich).
Certificates will be available for contacts made on CW, Phone
and/or Digital. See https://www.qrz.com/db/HB2025BA
for the details. QSL via LoTW only, paper cards will not be provided.
-[425DXN # 1782 June 28, 2025] (0627-0801)
HL, SOUTH KOREA.
Special event station HL7ØKARL commemorates
the 70th anniversary of the Korean Amateur Radio League (KARL), first
established on April 20, 1955. QSL via LoTW; paper cards will not be
available.
-[425DXN # 1783 July 5, 2025] (0704-0725)
HR, HONDURAS.
Alex, K6VHF is QRV as K6VHF/HR9
from Roatan Island (NA-057) until
July 10th. Activity is on 80 to 6 meters using CW, SSB,
RTTY, FT8, and FT4. QSL via K6VHF, LoTW.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
J3, GRENADA.
Eric, GM5RDX will be active as J38DX
on 80-6 meters with two stations at the same time from July 5th to July 13th.
"I expect to have an FT8 station operational soon after my arrival on
Saturday evening, with the SSB station being set up on Sunday morning",
he says. "Band conditions permitting, I expect to be fully operational
with two stations by around 11am Sunday (1600 UTC)". Graham, 2MØIJU
(J38LD), who had planned to accompany Eric, had to cancel his trip to
Grenada at the last moment. QSL via MØOXO's OQRS.
-[425DXN # 1783 July 5, 2025] (0704-0725)
JX, JAN MAYEN.
Peter, LB2OG is QRV as JX/LB2OG
while on work assignment. Activity is in his spare time and currently
on 40 and 20 meters, and possibly other higher bands, using SSB and
FT8. His length of stay is unknown. QSL to LB2OG.
-[ARRL DX Bulletin # 26 June 26, 2025] (0627-0718)
K, UNITED STATES.
The following stations will be active during the 17th annual "13
Colonies Special Event", which will be held from 1300 UTC on July 1st until
0400 UTC on July 8th: K2A
(New York), K2B
(Virginia), K2C
(Rhode Island), K2D
(Connecticut), K2E
(Delaware), K2F
(Maryland), K2G
(Georgia), K2H
(Massachusetts), K2I
(New Jersey), K2J
(North Carolina), K2K
(New Hampshire), K2L
(South Carolina), and K2M
(Pennsylvania), plus bonus stations WM3PEN
from Philadelphia (the city where the US independence was declared), GB13COL from England
(QSL direct, see qrz.com for instructions) and TM13COL from France
(QSL via F5OGL).
Information about the award program can be found on http://www.13colonies.us/.
-[425DXN # 1781 June 21, 2025] (0627-0711)
LA, NORWAY.
Charles, KD2RSF will be touring the Lofoten Islands (EU-076) from July 5th until the 7th or 8th,
with brief operations primarily on FT8 as LA/KD2RSF from the
villages of Svolvaer, Ballstad and Hamnoy. QSL via LoTW
-[425DXN # 1783 July 5, 2025] (0704-0711)
OJØ, MARKET REEF.
Juuso, OH1JW is QRV as OJØJW
while volunteering for the Finnish Lighthouse Society. Activity is in
his spare time on various analog Satellites, mainly on RS-44. QSL via
LoTW.
-[ARRL DX Bulletin # 25 June 19, 2025] (0620-0711)
OK, CZECH
REPUBLIC.
Martin, OL5Y (OK1FUA) and Vaclav, OL9R (OK6RA) are very happy to have
made it to WRTC 2026 and will be using the special callsign OL26WRTC during 2025 and 2026
as a celebration and promotion of that event. The 10th World Radio
Sport Team Championship (https://www.wrtc2026.org)
will take place in England on July 8-13, 2026. QSL via ClubLog's OQRS,
or direct to OK6RA.
-[425DXN # 1781 June 21, 2025] (0620-0711)
OZ, DENMARK.
Rene, DL2JRM has been island hopping in Denmark since June 30. Look for
OZ/DL2JRM to
be active until July
11th; he updates his schedule on https://www.qrz.com/db/DL2JRM.
He will return to Denmark for the IOTA Contest, when he will be QRV as OV7X from Bago
Island (EU-172). QSL via DL2JRM.
-[425DXN # 1783 July 5, 2025] (0704-0711)
SP, POLAND.
Special callsign SN92LOT
will be active on July
1st-31st
to commemorate the 92nd anniversary of the ill-fated flight of
Lithuanian pilots Steponas Darius and Stasys Girenas. On July 15, 1933,
they attempted a nonstop flight from New York City to Kaunas in a small
airplane named "Lituanica". After crossing the Atlantic Ocean, they
crashed on July 17 when they were only 400 miles short of their final
destination. QSL via SP1PMY.
-[425DXN # 1781 June 21, 2025] (0627-0801)
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)
TG, GUATEMALA.
Todd, AF4CZ is QRV as TG9/AF4CZ
until July 9th.
Activity is on 40 to 10 meters using FT8, FT4, and some SSB. QSL to AF4CZ.
-[ARRL DX Bulletin # 25 June 19, 2025] (0620-0711)
TY, BENIN.
Red, DL1BUG will be active again as TY5FR
from Cotonou, Benin from July
9th to August 6th. He will operate CW and SSB on 80-10
meters. QSL via ClubLog's OQRS,
LoTW, or via DL1BUG.
-[425DXN # 1783 July 5, 2025] (0704-0808)
TY, BENIN.
New station TY5AD
is sponsored and remotely controlled by the Russian DX Team. Hosted
near Cotonou, Benin, the station runs 100 watts into a vertical antenna
and can be operated on 80-10 meters. QSL via ClubLog's OQRS,
QSOs will be uploaded to LoTW within 2-3 days after that request.
-[425DXN # 1783 July 5, 2025] (0704-0725)
UN, KAZAKHSTAN.
Special event station UP7WWA
is QRV until July 6th
during the Sprint World Wide Award chase. Activity is on the HF bands
using CW, SSB, and various digital modes. QSL via LZ1YE.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
V5, NAMIBIA.
Special event station V55WWA
is QRV until July 6th
during the Sprint World Wide Award chase. Activity is on the HF bands
using CW, SSB, and various digital modes. QSL via operators'
instructions.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
VE, CANADA.
Jim, N6TQ will be active as N6TQ/VYØ
from Devon Island (NA-009), Nunavut during the first two weeks of July;
expected dates are July
3rd-12th,
but they may vary due to weather conditions. He and Matthias, KK7LJM
will be stationed at the Flashline Mars Arctic Research Station (https://fmars.marssociety.org/).
Plans are to be QRV when time permits and to operate CW (on or around
14040, 21040 and 28040 kHz) and SSB (on or around 14260, 21260 and
28460 kHz) "listening up". They are members of the Advanced Team tasked
with assessing, repairing, and readying the research station for the
season ahead. QSL via LoTW or direct to N6TQ.
-[425DXN # 1779 June 7, 2025] (0627-0711)
VE, CANADA.
Stuart, VA7QB, celebrates the IARU jubilee as XL7IARU during July on
CW, SSB, and FT8. QSL via VA7QB.
-[DXNL # 2461 June 4, 2025] (0627-0801)
VE, CANADA.
Pierre, VE3KTB will be active again as VYØERC from the
Eureka Amateur Radio Club station on Ellesmere Island (NA-008) from June 26th to July 24th.
He operates SSB, CW and FT8 on various bands when time permits. He
plans to operate as VYØRAC
during the RAC Canada Day Contest (July 1st). QSL via MØOXO's OQRS and
LoTW.
-[425DXN # 1781 June 21, 2025] (0620-0725)
VP8, FALKLAND IS.
Gerry, G3WIP is QRV as VP8DPD
from Port Stanley (SA-002) until
July 12th. Activity is mostly on 20 to 10 meters. QSL via EA5GL.
-[ARRL DX Bulletin # 25 June 19, 2025] (0620-0711)
YI, IRAQ.
Special event station YIØWWA
is QRV until July 6th
during the Sprint World Wide Award chase. Activity is on the HF bands
using CW, SSB, and various digital modes. QSL via operators'
instructions.
-[ARRL DX Bulletin # 27 July 3, 2025] (0704-0711)
ZD7, ST. HELENA.
Tim, NØUI, will be active as ZD7TIM
from July 5th to 13th
on 40-6m (CW, SSB, maybe RTTY), including a CW entry in the IARU HF
World Championship (July 12th-13th). QSL via NØUI, LoTW.
-[DXNL # 2465 July 2, 2025] (0704-0718)
ZF, CAYMAN IS.
Adrian, AA5UK is once again active from the Cayman Islands (NA-016) until July 11th.
After operating for a few days as ZF2AE/ZF8
from Little Cayman, he is now QRV from Grand Cayman Island as ZF2AE. He operates
digital modes and SSB on 60-6 meters. QSL via LoTW (preferred), or
direct to AA5UK.
-[425DXN # 1783 July 5, 2025] (0704-0711)
ZL, NEW ZEALAND.
Special callsign ZL1ØØIARU
will be used by New Zealand's IARU member society, NZART, to celebrate
the 100th anniversary of the International Amateur Radio Union until July 31st.
QSOs will be uploaded to QRZ Logbook and LoTW.
-[425DXN # 1776 May 17, 2025] (0516-0801)
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 Wednesday, July 2nd through yesterday, July 9th.
The average solar flux was 119, down 5 points from the previous week,
with a weekly high of 130 on Wednesday, July 2nd, followed by
a low of 115 on July 8th.
The average sunspot count was 91, down by 39 from last week,
peaking at 148 on Wednesday, July 2nd followed by a
weekly low of 81 on July 6th.
The Planetary K-index weekly average was 3.9 with a
maximum of 5.3 on Monday, July 7th, indicating
a minor geomagnetic storm. Yesterday's K-index maximum was 3.0 with generally quiet conditions.
Solar flare activity since July 3rd has been quiet with only 2
major flares, the largest of which was an M 2.4 event on Tuesday, July
8th.
Propagation
Data
Major solar flares, Thursday, July 3rd through 1313 UTC, July 10th.
| # | Date | UTC | Mag. |
|---|---|---|---|
| 1 | Jul 09 | 0425 | M 1.3 |
| 2 | Jul 08 | 0417 | M 2.4 |
(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 |
|---|---|---|---|
| Jul 10 | 35% | 1% | 115 |
| Jul 11 | 35% | 1% | 112 |
| Jul 12 | 35% | 1% | 115 |
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 July 7, 2025).
|
|
|
A
Sparkling Sunspot
Emerging
sunspot 4136 is sparkling with dozens of compact explosions.
Researchers call them "Ellerman Bombs." Philippe Tosi photographed the
phenomenon from Nîmes, France:
Named after physicist Ferdinand Ellerman, who studied them in the early
20th century, Ellerman
bombs are magnetic explosions about one-millionth as powerful
as true solar flares. A single Ellerman bomb releases about 1026
ergs of energy--equal to about 100,000 World War II atomic bombs.
The sparkling action of Ellerman bombs is a sign of magnetic complexity
in a sunspot. Opposite polarities bump together, reconnect,
and--boom! A full-sized solar flare may not be far behind.
(Copyright © SpaceWeather.com July 10, 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 | ||
|---|---|---|---|---|---|
| IARU HF World Championship | Jul 12 | 1200Z | Jul 13 | 1200Z | Rules |
| North American QSO Party, RTTY | Jul 19 | 1800Z | Jul 20 | 0600Z | Rules |
| CQ Worldwide VHF Contest | Jul 19 | 1800Z | Jul 20 | 2100Z | Rules |
| North American QSO Party, CW | Aug 2 | 1800Z | Aug 3 | 0600Z | Rules |
| WAE DX Contest, CW | Aug 9 | 0000Z | Aug 10 | 2359Z | Rules |
| Maryland-DC QSO Party | Aug 9 | 1400Z | Aug 10 | 0400Z | Rules |
| North American QSO Party, SSB | Aug 16 | 1800Z | Aug 17 | 0600Z | Rules |
| ARRL Rookie Roundup, RTTY | Aug 17 | 1800Z | Aug 17 | 2359Z | Rules |
| 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 |