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#1
January 30th 04, 04:26 PM
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Some interesting reading about Radio Waves below 22 kHz at URL:
http://www.vlf.it/ -- 73- Cambio - Keyboard To You ------------------- "Allodoxaphobia" wrote in message ... On 29 Jan 2004 19:05:21 -0800, Curious hath writ: What would I hear on a 1Hz AM reciever? The sound of one hand clapping. Jonesy -- | Marvin L Jones | jonz | W3DHJ | OS/2 | Gunnison, Colorado | @ | Jonesy | linux __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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#2
January 30th 04, 09:06 PM
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On Fri, 30 Jan 2004 08:26:45 -0800, Cambio hath writ:
Some interesting reading about Radio Waves below 22 kHz at URL: http://www.vlf.it/ Ya, but.... 3Mcs - 30Mcs == HF 300Kcs - 3Mcs == MF 30Kcs - 300Kcs == LF 3Kcs - 30Kcs == VLF 300cs - 3Kcs == ? VVLF 30cs - 300cs == ? VVVLF 3cs - 30cs == ? VVVVLF 0.3cs - 3cs == ? VVVVVLF But, at 1 cycle-per-second, I suppose one could employ some sort of zero-crossing amplitude-step modulation. It would take a month or two to transmit a moderate-sized jpeg. HI!HI! Jonesy -- | Marvin L Jones | jonz | W3DHJ | OS/2 | Gunnison, Colorado | @ | Jonesy | linux __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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#3
January 31st 04, 04:45 AM
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On 30 Jan 2004 21:06:21 GMT, Allodoxaphobia hath writ:
On Fri, 30 Jan 2004 08:26:45 -0800, Cambio hath writ: Some interesting reading about Radio Waves below 22 kHz at URL: http://www.vlf.it/ Ya, but.... 3Mcs - 30Mcs == HF 300Kcs - 3Mcs == MF -snip- Yes. To follow up on my previous followup with my pure-guesswork table, here is what can be found at: http://www.vlf.it/frequency/bands.html Designation Frequency Wavelength LF low frequency 30kHz to 300kHz 10km to 1km VLF very low frequency 3kHz to 30kHz 100km to 10km ULF ultralow frequency 300Hz to 3000Hz 1,000km to 100km SLF superlow frequency 30Hz to 300Hz 10,000km to 1,000km ELF extremely low frequency 3Hz to 30Hz 100,000km to 10,000km so, I propose: RLF ridiculously low freq. 0.3Hz to 3Hz 1,000,000km to 100,000km Jonesy -- | Marvin L Jones | jonz | W3DHJ | OS/2 | Gunnison, Colorado | @ | Jonesy | linux __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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#4
January 31st 04, 04:45 AM
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On 30 Jan 2004 21:06:21 GMT, Allodoxaphobia hath writ:
On Fri, 30 Jan 2004 08:26:45 -0800, Cambio hath writ: Some interesting reading about Radio Waves below 22 kHz at URL: http://www.vlf.it/ Ya, but.... 3Mcs - 30Mcs == HF 300Kcs - 3Mcs == MF -snip- Yes. To follow up on my previous followup with my pure-guesswork table, here is what can be found at: http://www.vlf.it/frequency/bands.html Designation Frequency Wavelength LF low frequency 30kHz to 300kHz 10km to 1km VLF very low frequency 3kHz to 30kHz 100km to 10km ULF ultralow frequency 300Hz to 3000Hz 1,000km to 100km SLF superlow frequency 30Hz to 300Hz 10,000km to 1,000km ELF extremely low frequency 3Hz to 30Hz 100,000km to 10,000km so, I propose: RLF ridiculously low freq. 0.3Hz to 3Hz 1,000,000km to 100,000km Jonesy -- | Marvin L Jones | jonz | W3DHJ | OS/2 | Gunnison, Colorado | @ | Jonesy | linux __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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#5
January 30th 04, 09:06 PM
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On Fri, 30 Jan 2004 08:26:45 -0800, Cambio hath writ:
Some interesting reading about Radio Waves below 22 kHz at URL: http://www.vlf.it/ Ya, but.... 3Mcs - 30Mcs == HF 300Kcs - 3Mcs == MF 30Kcs - 300Kcs == LF 3Kcs - 30Kcs == VLF 300cs - 3Kcs == ? VVLF 30cs - 300cs == ? VVVLF 3cs - 30cs == ? VVVVLF 0.3cs - 3cs == ? VVVVVLF But, at 1 cycle-per-second, I suppose one could employ some sort of zero-crossing amplitude-step modulation. It would take a month or two to transmit a moderate-sized jpeg. HI!HI! Jonesy -- | Marvin L Jones | jonz | W3DHJ | OS/2 | Gunnison, Colorado | @ | Jonesy | linux __ | 7,703' -- 2,345m | config.com | DM68mn SK |
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