National Association of Shortwave Broadcasters

National Association of Shortwave Broadcasters The NASB represents the privately-owned shortwave radio stations in the United States and promotes shortwave broadcasting in the U.S. and around the world.

The National Association of Shortwave Broadcasters (NASB) is a trade association for the privately-owned shortwave radio stations which are licensed by the U.S. Federal Communications Commission (FCC). The NASB also has a number of associate members which include transmitter and antenna manufacturers, receiver and equipment manufacturers, consultants, government broadcasters, overseas international broadcasters, shortwave transmission brokers and other organizations with an interest in shorwave broadcasting. The NASB organizes an annual meeting which is held in different locations throughout North America and which is open to shortwave broadcasters, listeners and anyone with an interest in any aspect of shortwave radio.

02/12/2026

Message from Microwave Power Products:

February 11th, 2026
On September 1st, 2026, Microwave Power Products’ manufacturing operations at the
facility previously known as Econco in Woodland, CA will be closed and the business will
be consolidated into our Palo Alto manufacturing site at 811 Hansen Way, Palo Alto,
California.
As part of the consolidation, Microwave Power Products (MPP) will discontinue repair
services for most Econco Power Grid tubes. MPP will no longer provide repair services for
Econco Power Grid repairs but will continue manufacturing new Power Grid products in
Palo Alto. The discontinuance includes repairs under Econco’s “Bank” program, which
allowed customers to bank non-working Power Grid tubes at the Woodland facility where
they would be rebuilt and made available to the customers for purchase. All open orders
will ship by July 24, 2026.
Accordingly, the deadline to purchase repaired Econco Power Grid tubes is May 12th, 2026
at 5 P.M. PST. Failure to purchase rebuilt Econco Power Grid tubes under the “Bank”
program or to request return of non-working tubes sent to the Woodland facility by 5 P.M.
PST on May 12th, 2026 will be deemed a representation that you have no interest in property
held by MPP in the Woodland facility and that you consent to MPP disposing all property
associated with the “Bank” program within its sole discretion.
Manufacturing of magnetrons and magnetron repair services will continue at the Palo Alto.
There will be no interruption to ongoing production of these supported products.
Magnetrons are scheduled to be manufactured at the Palo Alto facility beginning May 1,
2026.
If you would like to purchase any rebuilt tubes as part of the “Bank” program, request a
return of non-working tubes, or place a last time buy order for Econco Power Grid repair
services, please contact [email protected] and [email protected] by
the deadline above. For questions related to the facility consolidation/closure process,
please contact the undersigned.

Jake Sigmond
Business Unit Manager
Mobile: +1 650-509-7106
Email: [email protected]
811 Hansen Way, Palo Alto, CA 94304 USA +1 650 846-3000

Another way to listen to shortwave:
10/22/2025

Another way to listen to shortwave:

James Careless details how to access remotely tunable shortwave radio receivers located around the globe.

10/21/2025

On October 25th, station KTWR in Guam leaves the airwaves for good. But there is one more shortwave station in Guam — KSDA, the Adventist World Radio station. And Karl Forshee, AWR’s Program Distribution Engineer, tells us that they are looking for an assistant chief engineer for KSDA who would like to work at the station in Guam. And you don’t have to be a member of the Adventist church. So if you have any broadcast engineering experience and would like to work at a shortwave radio station in an exotic Pacific Island location, send an email to the Wavescan DX program and we’ll put you in touch with the right people. Our email is [email protected].

10/14/2025

Dummy Load Available

KTWR-Guam has a 300kW, 300Ohm Altronic Research dummy load. It is model 58300. This unit uses two 150Ohm resistors instead of a soda load. The motors are currently 480V, 60Hz, but the unit could be re-motored. It has had very little use. If anyone is interested, they can have it for their shipping cost. Please contact Mike Lambert ([email protected]) or Mike Sabin ([email protected]) if interested.

01/29/2025

The NASB 2025 annual meeting will take place June 17 and 18 at the headquarters of Trans World Radio in Cary (a suburb of Raleigh), North Carolina. Shortwave listeners and broadcasters are welcome to attend. There is no charge to participate; just pay your own travel and accommodation. We have arranged for a special rate at the closest hotel to TWR, and you can book via a link on the meeting webpage, which is:

https://shortwave.org/index.php/annual-meeting-info/

You can also register for the meeting at another link on that page. Please let us know you are planning to attend so we will know how many people to expect.

There will be talks and presentations on a variety of shortwave-related topics, and you'll have a chance to meet and talk with many people involved in shortwave radio. Please join us on June 17 and 18 at NASB 2025.

TWR has hosted two NASB annual meetings in past years. This will be their third meeting. Join with other shortwave broadcasters, shortwave listeners and others with an interest in shortwave radio at this gathering in June 2025.

11/01/2024

Wavescan, the weekly DX program produced by AWR, WRMI and Voice of Hope, and aired on WRMI, WWCR, Voice of Hope-Africa and IRRS Italy, is now available as a podcast at: wavescan.podomatic.com. New editions are posted every Sunday.

BBC Global Audience Holds Firm
09/19/2024

BBC Global Audience Holds Firm

The BBC retains pole position for trust and is also ranked first for reliability and independence amongst international news providers

09/15/2024

WTWW - Listing for Sale

Pulled from service, an SW100, 100 KW transmitter is for sale. Low sale price
George McClintock [email protected]
WTWW
6611 Ormond dr.
Nashville, TN 37205

Address

10400 NW 240th Street
Miami, FL
34972

Website

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