Medical Amateur Radio Council

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What is MARCO?

The Medical Amateur Radio council is a group that promotes good will and fellowship among amateur radio operators worldwide, who are professionals in the healing arts, or who have an interest in the various medical, dental and allied fields which constitute the healing arts. Many of us are Health Care Hams!

For access to our Aether newsletter archive, member directory and other member only content please consider becoming a member.  Click on Join MARCO to do so.

Please also visit our legacy site at www.marco-ltd.org

We Meet on the Air to Share

The MARCO organization is open to all licensed amateur radio operators who are healthcare professionals, work in a related field, or are interested in health related topics.  MARCO conducts a weekly Grand Rounds on the Air (20m) net to discuss health related or ham radio topics and stream the audio online at www.marcoaudio.net.  Zoom simulcasts are often used to allow members without HF equipment to participate.

YouTube videos are made from these Zoom sessions, produced for the public, located at 

https://www.youtube.com/@HealthCareHams

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Featured member

  • Project Echo

    18 Jan 2026 7:30 AM | Anonymous member (Administrator)

    Project ECHO was formed to offer an Extension For Community Healthcare Outcomes, a way to bring knowledge to those in need in treating patients in areas where they may not be available, or where training for providing programs for patients.  The project will be discussed as a possible adjunct for existing MARCO Projects

    The slides for today's roundtable discussion on our Grand Rounds on the Air provide links to background material

    click here

  • Alternative, Complementary and Functional Medicine

    11 Jan 2026 10:11 AM | Anonymous member (Administrator)

    This is the topic for roundtable discussion during the Grand Rounds on the Air net today.

    Please click here for the research notes that include links to online material

  • Christmas and the Holiday Season - Joy and Celebration. Stress?

    21 Dec 2025 9:12 AM | Anonymous member (Administrator)

    Our Grand Rounds on the Air roundtable today covers The Christmas and Holiday Season and the sources of joy, celebration, and what to look for in potential stress.  There is a Zoom session for those who are HF challenged.

    The document discussion is prompted from can be viewed, with links to source material, by clicking here.


  • Slides for this weekend's Grand Round Net on Dry Heat Sauna

    13 Dec 2025 7:16 AM | Anonymous member (Administrator)

    To view the slides while on HF for on-the-air discussion click here

    This weekend on Sunday December 14th at 11 am eastern the Grand Rounds discussion will be led by Dr. Bob Conder, K4RLC, who is a Neuropsychologist.  He will discussing Sauna - Health and Happiness from Dry Heat.  This is one of Bob's academic interests that touches his personal life so the topic presented should be fascinating.


  • Remembering Pearl Harbor

    07 Dec 2025 9:11 AM | Anonymous member (Administrator)

    Our Grand Rounds on the Air roundtable discussion today on December 7th is remembering Pearl Harbor and the medical advancements made due to the dedication of those who served, as well as those who supported soldiers and their families during WWII.

    Slides of the program that include links to Internet based research can be viewed by clicking here


  • Many of our MARCO members are Healthcare Hams

    03 Nov 2025 7:24 AM | Anonymous member (Administrator)


  • Tylenol - History and Current Use

    28 Sep 2025 9:45 AM | Anonymous member (Administrator)

    This document provides slides and links within for today's Grand Rounds Net session on the journey and impact of a famous medication including past and recent concerns, an interactive discussion.

    https://drive.google.com/file/d/1BsHKByK9YYI0Dx6jsNhkaIZFEY0_I4y2/view?usp=sharing




  • Catastrophic Sport Injuries Grand Rounds on the Air video and audio is now available

    19 Jan 2025 2:09 PM | Anonymous member (Administrator)

    The Grand Rounds on the Air covered catastrophic sports injuries on January 19 2025, and is available for you to view. The focus is prevention, diagnosis and treatment.

    YouTube video:  https://youtu.be/GJ3LqGpn_3s

    N5RTF's marcoaudio.net Web stream audio recording (full net):  https://drive.google.com/file/d/1XcuGrJkHCY-h2kHUGCVabv7hhHHlOjbI/view?usp=sharing

    Presenters Drs. Alanna (K4AAC) and Bob Conder (K4RLC) provided information on this subject based on years of their experience:

    Alanna is a member of the North Carolina Dept of Health and Human Services Injury and Violence Prevention Catastrophic Sport Injury Task Force. Her focus here is on K-12 sports.

    Bob added information from his work with the National Hockey League, as well as consulting with other pro sports, eg, MLB and NFL.

  • ARRL Foundation 2024 Recipient of the MARCO Scholarship

    30 Sep 2024 10:27 AM | Anonymous member (Administrator)

    The ARRL Foundation Officers and Board have announced the 2024 recipient of the MARCO Scholarship in the amount of $1000.00.  McKenzie Menefee, KI5MHA of Blanchard, OK was selected from an outstanding group of applicants.

    The full article about McKenzie can be viewed in our October 2024 version of our Aether publication, click to view.   See Mckenzie’s career plans and goals on page seventeen.  Congratulations McKenzie!

    The 2025 ARRL Foundation Scholarship application period is expected to open in October.  There are over $700,000 in various scholarships available, see https://www.arrl.org/scholarship-program




MARCO - Medical Amateur Radio Council

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