Technology
The White House Communications Agency Amateur Radio Club (WHCA‑ARC) maintains a strong technical foundation built on proven communications systems, modern digital tools, and hands‑on experimentation. This section provides operators, members, and students with a structured overview of the technologies that support our mission of readiness, education, and service.
Operating Modes
These modes represent the core ways WHCA‑ARC members communicate across HF, VHF, and UHF bands. Each mode supports different mission profiles, training objectives, and operating conditions.
- Digital Modes — Modern, efficient, and ideal for weak-signal work.
- SSB Operations — The primary voice mode for HF communications.
- CW Operations — Morse code: precise, reliable, and historically significant.
Systems
These systems form the backbone of WHCA‑ARC’s technical capability. They include traditional radio platforms, software-defined technologies, and antenna systems engineered for performance and reliability.
- Radio Systems — HF, VHF, UHF, and multi-band transceivers.
- SDR Systems — Flexible, computer-driven radio platforms.
- Antenna Systems — From portable field antennas to fixed installations.
Microcontrollers
Microcontroller platforms enable experimentation, automation, and custom station enhancements. These projects support education, innovation, and hands-on learning for all skill levels.
- Arduino Projects — Simple, modular, and ideal for beginners.
- Raspberry Pi Projects — Powerful, flexible computing for advanced applications.
Technology is at the heart of WHCA‑ARC’s mission. Whether you are learning a new mode, building a project, or exploring advanced systems, this section provides the foundation for growth, readiness, and service to the amateur radio community.
