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NIHRAC banner with official logo

 Welcome to NIHRAC   

The National Institutes of Health Radio Amateur Club
 [HQ @ Bethesda, Maryland, USA]

 -- 57 years of ham radio and public service! --

Membership is open to anyone who have an interest on amateur radio as a hobby or community service activity, or interested on related DIY electronics projects.


Due the COVID-19 emergency, physical access to the NIHRAC's facility on the NIH campus is currently restricted. All our club meetings are currently held online. Our Echolink server and 2m K3YGG repeater continue to be openly available, but these resources can be temporarily sequestered if we are called to provide emergency communications support to NIH or our community. For any inquiries, contact us at

Assembling a rotator connector
Hexbeam antenna repairs - July 2019

(pictures from October 2019 club activities)


The Club meets the first Saturday of every month at 1:30pm. During the COVID-19 emergency, meetings are held online by video conference. Information to join our meetings is communicated via our email forum (see our Membership page for details). During normal times, we meet at Building 11, Room 305 in the NIH Bethesda campus. We welcome almost anyone in our meetings-- club membership or a ham license are not required. 

We also hold a weekly "net", or on-the-air meeting, every Monday at 9:00 p.m. on our 2 meter repeater We welcome check-ins from all stations over the air or through the Internet via EchoLink--we are K3YGG-R. Contact us at if you need assistance attending.



Anyone interested in, or curious about, amateur radio, telecommunications or emergency communications services can join us. We also welcome other electronics hobbyists. Participation in our emergency communications activities, a FCC Amateur Radio license or holding a NIH badge ID are NOT required for membership. Membership is free. For more details, visit our Membership page.

NIHRAC Radio Stations (October 2019)
NIHRAC makes a number of resources freely available to its members. Our facility, now fully renovated, has radio stations and antenna systems for a variety of analog and digital radio communications modalities, office space for meetings and other hobby activities, as well as tools and equipment for radio experimentation and other DIY projects. Visit our Club Resources page for more details.

 We maintain a repeater in the 2-meter band that is openly available to anyone with a radio amateur license. We also make regular use of a local 70-cm repeater. Our 2-meter repeater frequencies are 144.69 MHz input / 145.29 MHz output. No PL tone is currently required for access. For more details, please visit our Repeaters page.  

 Solar X-rays:

Geomagnetic Field:

(Full report at


Click below to see stats