Archived App (Last seen on 9 Jul 2026)
This is an archived listing of the app previously available on the App Store.Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.
About
This app is sound FFT and frequency measure, that is Morse-code decoder "Valiance Backbone for CW (VBC)"'s subset.
So, if you had the VBC, you did not need this VBCTone.
VBCTone is useful to detect call-back DX stations frequency.
VBCTone is able to measured transceiver's CW pitch.
Frequency resolution is ±5Hz.
Preparing operation for FFT makes correct frequency and High resolution shape. Let's try it!
This app contains these functions like bellow.
tone zero-in/shift-in indicator / tone frequency measure(±5Hz) / sound level measure / peak search
Operation movies are in www.youtube.com.
http://goo.gl/yEu3d1
http://goo.gl/7gp4yw
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What's New in VBCTone
1.14.0
February 18, 2023
Ver 1.14.0 Changed control buttons are easy to see, even on in iPhone's dark mode.
