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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 any individuals who have an interest on ham radio, wireless communications or emergency communications services in support of their local community or the nation.


Due to the current COVID-19 emergency, access to the NIHRAC's facility on the NIH campus is currently limited to emergency activities only. Our Echolink server and 2m repeater continue to be openly available for use. However, those resources can be sequestered if we are called to provide emergency communications support to NIH or the surrounding community. During these times of social distancing, Club meetings will be conducted remotely. Meeting information will be provided via our email list.


The NIHRAC office renovation is complete. We are still looking for wall shelves to accommodate additional equipment and tools. We also have a few antenna building tasks pending. Contact us via or to if you would like to contribute.

Assembling a rotator connector
Hexbeam antenna repairs - July 2019

(October 2019)


The Club meets the first Saturday of every month at 1:30pm. During the COVID-19 emergency period, meetings are held online by video conference. Check our email list or contact us to for meeting information. During normal times, we meet at Building 11, Room 305 in the NIH Bethesda campus. We welcome anyone -- club membership or a ham license are not required. See our About Us page for directions and additional information. We also have a weekly "net", or on-the-air meeting, every Monday at 9:00 p.m. on our 2 meter repeater (see below).  We welcome check-ins from all stations over the air or through the Internet via EchoLink--we are K3YGG-R. Contact us at or if you need assistance attending.



We welcome applications from anyone interested in amateur radio, telecommunications or emergency communications services.  Membership is free. A NIH badge is NOT required for membership or to access our Club facilities in the NIH campus. For more information, visit our Membership page.

NIHRAC Radio Stations (October 2019)
NIHRAC makes a number of resources freely available for use to its members. Our facility, now being 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, and tools and equipment for radio experimentation and DIY projects. Visit our Club Resources page to view details.

 We maintain a repeater in the 2-meter band that is openly available to anyone with a radio amateur license, except under exceptional circumstances. 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. PL5A (156.7 Hz) encoding is required for access. For more details, please visit our Repeaters page.  

 Solar X-rays:

Geomagnetic Field:

(Full report at


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