Valiance Backbone for CW - VBC 1.51.0

The application under review is "Valiance Backbone for CW (VBC)," a Morse code decoding tool designed for use with the built-in microphone of iPhone and iPod touch devices. The VBC has established itself as the leading Morse decoder in the Japanese market from January 1, 2014, to January 31, 2023.

The software emphasizes the importance of using actual transceiver sounds for optimal performance. It employs real-carrier detection utilizing the world's fastest FFT (Fast Fourier Transform), which effectively filters out static noise, electrostatic interference, voice, and square or trapezoid wave beeps, enhancing decoding accuracy in challenging environments.

Comparison of VBC's FFT processing rate reveals performance superior to that of high-speed DSPs found in expensive transceivers or alternative decoding software. Its Morse code decoding capability appears to surpass that of some professional-grade Morse decoders and PC-based software solutions. This suggests that VBC could be suitable for real-time Morse communication on ham radio, particularly during calling operations.

Users are encouraged to test the application actively. If initial attempts do not meet expectations, it is recommended to revert to default settings and connect with a real transceiver for best results.

The application offers a broad array of functions, including Morse sound recording and playback, text logging with email export, timestamping and canceling logs, distinguishing between different Morse signals, tone zero-in and shift-in indicators, tone frequency measurement (±5Hz), sound level measurement, automatic gain control, audio frequency calibration, peak search, manual frequency adjustment via double tap on the screen, automatic and manual speed controls (ranging from 5 to 40 words per minute), automatic level and threshold settings, manual threshold adjustment, noise rejection features, carrier detection mode, support for Japanese Morse code, signal level slider control, among others.

Additional resources such as instructional videos are available on YouTube under the "Real-DX" channel:

• http://goo.gl/ALXAqH
• http://goo.gl/yEu3d1
• http://goo.gl/7gp4yw

This app utilizes kishikawa katsumi's PETextView component to address scrolling issues on iOS8 and later versions. The SETextView was created by kishikawa katsumi on March 25, 2015. All related rights are reserved by kishikawa katsumi (2013-2015).