Ondra OK1CDJ/OL0M🇨🇿/SV0SYH/J42T🇬🇷

@ok1cdj

Hamradio - DX, contesting, SOTA, GMA, WFF QRV 160m-76GHz, LEO SATs, QO-100 Electronics - ESP32 M5Stack Arduino [email protected]

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Pieter Ibelings

@ibelings

Physicist, Engineer, N4IP, Antennas, Space Systems, SDR, RF, RADAR , Phased Arrays, Satellites, PCB Design 🇺🇸

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Tim Beaumont M0URX

@m0urx

Amateur Radio operator, QSL manager. Looking to help DXpedition teams, Blogger, DXer, DXCC & IOTA chaser.

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Scott Chapman

@scott23192

K4KDR

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Dayton Hamvention®

@hamvention

The Dayton Hamvention® is the world's largest amateur radio gathering, attracting hams from throughout the globe since 1952.

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Dragan, 4O4A

@4o4a

🇲🇪 4O4A, 🇷🇸 YU4YY, 🇧🇦🇭🇷🇦🇱🇦🇹🇱🇮🇩🇪🇮🇹/4O4A. Operations manager @4O3ASignature, SAT chaser. Poznaje profesorku iz X gimnazije.

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Samir Khayat

@od5sk

Saudi Amateur Radio Callsign : HZ1SK Chairman and founder of Laselki.net

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Laselki.net

@laselki

Arab Amateur Radio Website لاسلكي.نت - هواة اللاسلكي العرب

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TG9AJR Juan

@tg9ajr

Not every day is the same while mastering patience chasing DX on the Magic Band. I upload daily to LoTW & ClubLog or QSL card via @M0URX OQRS system.

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Oleg A65BR

@a65br

LL75SL88 HF-VHF-UHF-Sat

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Jun Tanaka

@jh4rhf

だらだらやってます 職業:旅人

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Simon Brown, G4ELI

@g4eli

The thickest, most stupid computer programmer of all time ever.

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きこり/jk2xxk

@kikori1906

=HamRadio= Contest/Satellite/RTTY/Pedition/Digital-Mode/JA-CQ Mag.'s Editor =MyJob= 森林総合監理士/林業技士/森林GIS1級/岐阜県林業士/架線集材/鋸谷式/QGIS/TruPulse360/スイス林業/近自然/今はなぜか測量屋さん笑

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𝔸𝕙𝕞𝕒𝕕 𝕓𝕟 𝕄𝕒𝕛𝕚𝕕 🔧🚧🇦🇪

@bn__majid

نَـجـمْ سـهٰيـِلّ ✨🙋🏻‍♂️🇦🇪 .. اللهم اغفر لي و لوالدي و كل من أحب

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Gustavo E Falconi

@hc2fg

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TODO, Yosh JE3HCZ🛰️

@day_tripper0

BLOG: todo.vc D-STAR #dstar on #REF047_C / #XLX047_B | Callsign Routing on UR: JE3HCZ

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NasiGorengUnited

@farid_agam

qrz.com/db/yb1hvz #BlueOceanUnited #YBLand #WestJava #Indonesia

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AMSAT-SM (SM0TGU Lars)

@amsat_sm

AMSAT-SM (Sweden) - Amateur radio satellite group. News and tweets about amateur radio satellites and amateur radio. Editor: Lars Thunberg SM0TGU

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otti

@otti_sat

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Cloudlog

@cloudloghq

Opensource web-based amateur radio logging application, which is written in PHP & MySQL by @2M0SQL #hamradio #logging

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Rob @m0dts.bsky.social

@m0dts

Amateur Radio - KHz to THz. Amateur Television, electronics, software, 3dPrint etc. #hamradio #teesside #IO94. youtube.com/@M0DTS @m0dts.bsky.social

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Keith Strong

@drkstrong

Solar physicist interested in Sun-Earth connections, climate change, and public outreach.

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Orlando HamCation

@hamcation

Orlando HamCation February 13-15, 2026

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ED1R Contest Station

@ed1r_contest

🇪🇦 Radio Amateur Contest Station - HF & VHF Contest Team - CW - SSB - RTTY - #hamr #cqcontest #contesting #hamradio #ed1r #eacontestclub #bavariancontestclub

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Ashraf Chaabane

@3v8ss_3v8sf

Tunisian Callsign: 3V9A, US Callsign: KF5EYY Operator of 3V8SF and 3V8SS Club Stations

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Dr. Tamitha Skov

@tamithaskov

Space Weather Physicist. Forecasting aurora, GPS, HF radio & radiation issues during solar storms. On TV: @HISTORY, @weatherchannel, @PopSci, @NASA, @techreview

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RigExpert

@rigexpert

RigExpert is a leading developer of innovative and high-quality radio communication equipment for ham radio enthusiasts worldwide.

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Vincent F4BKV

@f4bkv

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Ken - LA7GIA

@la7gia

DXer, DXpeditioner, contester and CW enthusiast

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EA3EMG

@ea3emg

Ham Radio microwaves, EME and amateur Deep Space Network

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DXLog

@dxlog4contest

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BA1DU

@du_ba1

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Justin Peng

@fei666888

一蓑烟雨任平生

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David G0LBK

@g0lbk

Originally a mechanical engineer turned law officer (now retired). Biker and a radio amateur for the last 38 years. 2m and up ms, eme & occasionally a contester

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Matt — KØLWC

@k0lwc

Ham Radio Operator | Active on VHF/UHF/HF from EN35 | 🎥 | #HamRadio #AmateurRadio | Can afford my own coffee. ☕️ | #BeHamFriendly

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Web Radio Control

@webradioctrl

Web-based remote control for your amateur radio station. Operate on phone, CW and digital modes. Supports PC and Mac on desktop, Android and iOS on mobile.

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S5Lab

@s5lab

Sapienza Space Systems and Space Surveillance Laboratory (S5Lab) Sapienza University of Rome Rome, Italy

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Tada/JA7KPI

@ja7kpi

無線やってます。第一級アマチュア無線技士。 1.8MHz～50MHz～1200MHz、電信、衛星通信、野外移動運用、アンテナ設計製作。 ギター(ROCK)も 自転車(ロードバイク)も同じくらいやってます。

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Intl. WSPR Beacon Project

@intlwspr

Coordinated global #WSPR Beacons - Synchronized weak signal Network - 80,40,20,15,10m 24x7x365 - Donations welcome donorbox.org/intl-wspr-beac…

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Abdallah

@9k2gs

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Andy UW8SM

@yanulyavichus

UW8SM

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GridMasterMap

@gridmastermap

GridMaster Satellite & V/U/SHF awards. Ressources to increase your grids hunting by sharing, challenges and roving Rovers : Tag us to inform the world

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TA2OM_ErsoyYilmaz_(aka 3C3CA)

@3c3ca_ta2om

Born in 1963. TA2OM on move

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WRTC 2026

@2026wrtc

We are proud to announce WRTC 2026 will be held in the UK

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Chaojun Tan - BG7XUD

@tcjj3

Computer programmer, love reverse engineering and penetration testing, interested in amateur radio and SDR, started to receive UHF WX satellites recently.

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Live Contest Score

@live_contest

Realtime Scoring Server News & Content :: CONTEST.RUN

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Andy Ik7ytt

@ik7ytt

Ciao my name is Andy , I'm om since 1995, main activities is on HF bands, love contesting and IOTA activation.

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ON4DPX

@on4dpx

All-round radio electronics nerd . Passionated about antennas and RF . Active from DC to GHZ and from local to moonbounce

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LEDSAT Team

@ledsat_team

A 1U CubeSat launched on Aug 17, 2021. Follow our lab profile @S5Lab for all the updates concerning its operations!

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AmSat-EA

@amsatspain

AMSAT-EA es una asociación de radio-operadores de satélites amateur. Desarrollamos y operamos satélites para radioaficionados.

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