ARSB Member Spotlight

From Ham Radio Service to International Research Recognition

Celebrating Dr. Deepta Majumder, S21HK—physician, public-health researcher and amateur radio operator.

📅 25 July 2026 📡 Call sign: S21HK ✍️ ARSB

Dr. Deepta Majumder (S21HK) is a physician, public-health professional, researcher and licensed amateur radio operator. His story connects service on the airwaves with meaningful advances in medicine, emergency communication and public health.

Since 2017 Licensed amateur radio operator
Since 2019 Active contributor to ARSB
3 Bands HF, VHF and UHF field communication
Global Reach Research recognized by major publishers
01

Service through amateur radio

Emergency communication, technical outreach and youth engagement

Dr. Majumder has been actively involved with ARSB since 2019, contributing to emergency communication, volunteer training, technical outreach and youth engagement.

Through ARSB and ham-radio activities, he has supported communication during crisis-response missions, assisted rescue and relief coordination, and trained volunteers in effective field communication.

02

Medicine and public health

Clinical service for vulnerable communities in Bangladesh

Professionally, Dr. Majumder serves as a Senior Medical Officer in a Global Fund-supported harm-reduction programme for people who inject drugs under Population Services and Training Centre, Bangladesh.

His responsibilities include HIV, TB, STI, hepatitis B and C screening; opioid substitution therapy; overdose management; harm-reduction counselling; outreach supervision; linkage-to-care support; reporting; and coordination with multidisciplinary teams.

03

Research with international impact

From cardiovascular care to infectious-disease priorities

Latest acceptance · Elsevier

Pediatric renal replacement therapy

Accepted in Elsevier’s Journal of Pediatric Urology, the review summarizes current evidence on clinical outcomes, treatment challenges and evolving best practices. It identifies gaps in care delivery and the need for stronger multidisciplinary management in resource-limited settings.

International publishers

Growing global visibility

Co-authored research has been accepted by major publishers including Springer Nature, Elsevier and Wiley.

BMRC-funded research

Molecular dengue research

In 2026, Dr. Majumder received funding from the Bangladesh Medical Research Council to investigate dengue at the molecular level.

Clinical research

Cardiac and neurological care

His research includes cardiovascular disease, pulmonary hypertension, acute coronary syndrome, congenital cardiac surgery and stroke rehabilitation.

Public-health research

Care and service delivery

Additional areas include palliative care, dengue and public-health service delivery.

04

International conference recognition

American Public Health Association 2026 Annual Meeting & Expo

Poster presentation accepted

Dr. Majumder’s abstract, “Assessment of Adrenocortical Function Among People Living with HIV on Antiretroviral Therapy in Bangladesh,” has been accepted for poster presentation under the HIV/AIDS Program at the American Public Health Association 2026 Annual Meeting and Expo.

San Antonio, Texas, USA

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HAM Radio Service to International Research Recognition (S21HK)

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05

Photo gallery

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Amateur Radio Society of Bangladesh (ARSB) · Advancing technical knowledge, public service and international collaboration
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