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DX Resources : DX Peditions : 2023 DXpeditions- TX6D Tahiti DXPedition
- Our next DXpedition will take us to Tahiti, French Polynesia. From October 2 to October 15, 2023 we will be active with the callsign TX6D. We will be active with up to five stations from 160 m through 10 m on CW, SSB and digital modes.
[ Hits: 62 | Votes: 1 | Rating: 10 ]
- FT 1000MP MK V and Keyclicks
- YaesuFT1000MK V stands out with improved close-spaced SSB transmit performance, reversing a trend seen in other modern radios. Featuring a class-A mode, it offers clean HV finals when kept out of ALC. However, two significant flaws persist: the noise blanker causes receiver IM distortion, and the transmitter lacks wave-shaping on CW, resulting in pronounced keyclicks. Preliminary tests reveal strong keyclicks +1kHz and -1kHz, prompting a combined modification to address both issues.
[ Hits: 31 | Votes: 0 | Rating: 0 ]
- AI Projections for Ham Radio Modes in 2023-2025
- In an innovative analysis, Michael G7VJR employs NeuralProphet to predict ham radio modes' usage trends. The AI model, leveraging deep learning, forecasts a steady FT8 dominance, with slight declines in CW and Phone activities. This approach simplifies statistical predictions, showcasing the power of AI in understanding complex patterns and facilitating insightful time series projections. Access the freely available Club Log data for continuous exploration.
[ Hits: 55 | Votes: 0 | Rating: 0 ]
- Arduino QRP Transceiver: DIY Success on HF Bands
- This article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities.
[ Hits: 111 | Votes: 1 | Rating: 1 ]
- The CW Flea: Modern Morse Transmitter with Arduino
- Reviving the spirit of early ham radio experimentation, the CW Flea is a contemporary Morse code transmitter. Utilizing an Arduino Nano, Si5351 clock generator, and innovative design, this open-source project offers simplicity, flexibility, and easy tuning for aspiring radio enthusiasts.
[ Hits: 90 | Votes: 2 | Rating: 3.5 ]
- Homebrew uSDX TRX
- The Homebrew uSDX SDR TRX is an experimental transceiver primarily designed for CW and Digital modes due to limitations in meeting FCC requirements for SSB. Developed from the QRP Labs QCX, it incorporates advanced SDR features while utilizing an 8-bit ATMEGA328P. The µSDX community fosters open-source development with various design streams and versions, encouraging collaboration and sharing among enthusiasts.
[ Hits: 47 | Votes: 0 | Rating: 0 ]
- AnyRig A Flexible Digital Mode Interface
- This project uses an inexpensive Teensy microcontroller as the core of a flexible interface that provides a high-fidelity sound card and VOX functions for controlling the radio.The interface firmware supports variable VOX delay, CW and RTTY keying via audio (such as is available from Fldigi), and RTS and DTR control of any keying function, all via a single USB connection to the PC.
[ Hits: 143 | Votes: 0 | Rating: 0 ]
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