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DUNY cycle, Morse code, and what is SV spectrum bandwidth? There's something we're talking about on the SFPV net on 147.08 that Cody was on. And there was a sleep bandwidth that switched to a couple of modes and then did data transmission. And I like that one because it sounded like it did sleeps and bandwidth, audio bandwidth tests to optimize the data, or the receive side for data receiving. And knowing all that I do about group delay and phase differences at different levels and such, it's like, in fact group delay, I don't know how you describe it, but on a stair step signal, the difference in phase on a plus Q phase at the same amplitude and phase on all the stair steps. If it starts to drift at either the high or the low end, you've got group delay and it's visible in color bars real easy. On NTSC, you'll have twice the same color format. So, yeah, I have to read my Wikipedia again and learn how to describe that kind of amplitude and frequency-related phase delays and advances and stuff that we saw with the telephone company gave us most of that to look at, laugh at, and watch change with the microwave phase. Back to you and I'll quit geeking out. KJ7VEU, good night, Joan. Well, you geeked me out so much, Michael, that I booted up my tricorder, my Star Trek, the original series tricorder, and I have it normally in audio mode because now I'm looking at my audio, a oscilloscope waveform and a fast Fourier transform spectrum. There it is. Oh, yeah, that gets it going. So there you go. So you know, Michael, I am using my audio sensor.