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The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.
Updated: 1 hour 27 min ago

Wireless Association of New York City’s WA2NYC Commemorates 9/11 Anniversary

Mon, 09/11/2017 - 09:12

WA2NYC has been on the air since September 8 to commemorate the anniversary of the 9/11 terror attacks in 2001.

“This station will commemorate the 16th anniversary of the attack on the World Trade Center in New York City,” said the post on the club’s QRZ.com website. “We remember the over twenty-nine hundred people who lost their lives on that day.”

The special event is operating on or near 7.2...

The K7RA Solar Update

Sat, 09/09/2017 - 00:11

Tad Cook, K7RA, Seattle, reports: Wow! What a week for solar activity. Although the solar cycle is trending toward a solar minimum in around 2020, we will still see notable upticks in activity, such as this week’s surprises. 

On August 31, Spaceweather.com reported a G1 (minor) geomagnetic storm. The planetary A index was 59. The following day Spaceweather.com reported geomagnetic unrest with a ...

Hurricane Irma Amateur Radio Emergency and Priority Traffic is Moving; Health & Welfare Traffic Queued For Later Delivery

Fri, 09/08/2017 - 15:26

At this time, it is ARRL’s understanding that only Amateur Radio Emergency or Amateur Radio Priority traffic is moving in and out of areas affected by Hurricane Irma. Amateur Radio Health and Welfare communications are being queued up for later delivery into the affected area, as the emergency and priority traffic eases. 

In the aftermath of a natural disaster, it is human nature for persons ou...

Space Weather Prediction Center Says Solar Phenomena May Continue

Fri, 09/08/2017 - 14:56

The Space Weather Prediction Center (SWPC) said today that G4 (Severe) geomagnetic storm levels were observed at 2350 UTC on September 7 and again at 0151 UTC and 1304 UTC on September 8, due to the effects of a coronal mass ejection (CME). A G3 (Strong) or greater warning was in effect until 1500 UTC today.

Solar flares have adversely affected HF nets attempting to gather information on the thr...

Operating Procedures During Hurricane Irma

Fri, 09/08/2017 - 14:49

Please be aware that due to the breadth of this series of weather events, numerous emergency and public service nets are in session, especially on the 80, 40, and 20 meter bands. US licensees are reminded that Part 97.101 (c) always gives priority to stations providing emergency communications. All stations should be aware that in a large-scale natural disaster, immediate threats to life and pr...

ARRL Establishes Hurricane Irma Hotline for ARRL Section Leadership

Fri, 09/08/2017 - 14:38

ARRL has set up a temporary phone number that ARRL section leadership can use to communicate Hurricane Irma-related information or requests to ARRL Headquarters. The number will be monitored at W1AW when the station is staffed. During off-hours, the number will be forwarded to an on-call ARRL staffer. This number should also be used to report problems such as extended interference with ongoing ...

VoIP Hurricane Net to Activate

Fri, 09/08/2017 - 05:44

The VoIP Hurricane Net will activate at 2300 UTC Friday, September 8, until Saturday, September 9, at 0600 UTC to track the impact of Hurricane Irma, expected to affect Cuba and the Bahamas, and of Hurricane Katia, expected to reach southeastern Mexico.

A VoIP Hurricane Net activation for Hurricane Irma will restart on Saturday, September 9, at 0600 UTC, to address the storm’s impact as it depar...

ARES Teams in Three West Central Florida Section Counties Ready to Support Shelters

Thu, 09/07/2017 - 11:48

As Hurricane Irma moves closer to the Florida Peninsula, ARRL West Central Florida Section Manager Darrell Davis, KT4WX, reports that Amateur Radio Emergency Service (ARES) teams have been requested to provide communication support at evacuation shelters in Highlands, Hillsborough, and Polk counties.

“Other counties in the West Central Florida Section are considering shelter operations,” Davis s...

Solar Flares Spark Radio Blackouts, Auroral Displays Possible

Thu, 09/07/2017 - 08:45

NOAA’s Space Weather Prediction Center (SWPC) has issued a strong (G3) geomagnetic storm watch for September 7 through September 9. The SWPC said the watch for September 7 remains in effect due to the arrival of a coronal mass ejection (CME) and the effects of a CME on September 4.

“Additionally, a G3 watch is now in effect for the 8 and 9 September UTC days in anticipation of the arrival of ano...

More Professional and Citizen Research Suggests Eclipse Briefly Affected HF Propagation

Wed, 09/06/2017 - 12:37

Both professional and citizen scientists conducted formal and informal investigations into the effect of the August 21 solar eclipse on HF radio propagation. Nathaniel Frissell, W2NAF, of HamSCI, has said it will take some time to get a more scientific analysis of data compiled during the Solar Eclipse QSO Party. Frissell and others are investigating whether the sudden absence of sunlight durin...

New “Pre-Release” Version of WSJT-X Includes FT8 Changes

Wed, 09/06/2017 - 09:36

A new “pre-release” version of WSJT-X now is available. This is the Amateur Radio digital software suite developed by Joe Taylor, K1JT, that includes the new FT8 mode, which has been catching on like wildfire. The September 2 release, WSJT-X version 1.8.0-rc2, fixes a number of issues, provides better performance, and offers some new features.

“Implementation of FT8 and its auto-sequencing featu...

Space Weather Prediction Center Upgrades Geomagnetic Storm Watch to G3 (Strong)

Wed, 09/06/2017 - 08:19

NOAA’s Space Weather Prediction Center (SWPC) has upgraded its geomagnetic storm watch for today and tomorrow (September 6 and 7) to G3 (Strong).

“The G3 Watch is in anticipation of the expected arrival of a coronal mass ejection (CME) that took place in association with an M5 flare,” the SWPC said. The Center said its current analysis and forecasts indicate that the CME will arrive late on Sept...

Solar Flux Takes One Giant Step

Tue, 09/05/2017 - 07:29

On Labor Day, the solar flux took a huge leap, from 120 to 183 from a day earlier. At 1300 UTC today, the solar flux was 144, and the sunspot number was 122. This bodes well for operation on the higher bands, with transequatorial propagation (TEP) a possibility on 12 and 10 meters as well as improved nighttime conditions on 20, 17, and 15 meters.

“The ionosphere will start cooling later this mon...

Amateur Radio Preparations Ramp Up as Irma Strengthens to Category 5

Tue, 09/05/2017 - 07:08

Hurricane Irma, making its way through the Caribbean with the possibility of affecting South Florida by week’s end, has, in the words of the National Hurricane Center (NHC), become “an extremely dangerous category 5 hurricane.” The NHC urged that hurricane preparations be rushed to completion in areas now under hurricane warnings.

As of 1800 UTC, Hurricane Irma was some 180 miles east of Antigua...