AF Spectrum display
I have recently been trying to make more use of the AF Spectrum display, primarily to help identify the characteristics of HF radars, such as their Pulse Repetition Frequency, and if CTCSS tones are present on NBFM signals.
I normally use the KiWi in conjunction with Soundcard Oscilloscope to look at the amplitude and frequency domain of the demodulated audio.
My plan was to try and use the KiWi AF Spectrum display and cursor to see if I could pick out the dominant AF components from the demodulated AM and FM signals.
However (Doh) I now realise that the AF spectrum display isn't actually showing the demodulated output, but it is a zoomed in version of the RF spectrum FFT.
JUst a thought but maybe the AF spec button should be renamed to RX or IF ? spectrum or something similar ?