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#1
September 14th 06, 10:29 AM
posted to sci.electronics.basics,sci.physics.electromag,rec.radio.shortwave,rec.radio.amateur.equipment,uk.radio.amateur
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Receiving Pulse-Code Modulation on AM radio at 3 Mhz?
On 2006-09-13, Radium wrote:
Easy for you to ask. I doubt any store has the device. And the equipment required to amplify .00000000001 dB to an audible level would take up the entire room. There is no such thing as a .00000000001 dB signal Whats stops a .00000000001 dB signal from existing? Nothing, it's just indistinguishable from a 0db signal. In other words it's about half the amplitide of a 3db signal... It's a logarythmic scale. Bye. Jasen |
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#2
September 14th 06, 02:46 PM
posted to sci.electronics.basics,sci.physics.electromag,rec.radio.shortwave,rec.radio.amateur.equipment,uk.radio.amateur
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Receiving Pulse-Code Modulation on AM radio at 3 Mhz?
jasen wrote:
On 2006-09-13, Radium wrote: Easy for you to ask. I doubt any store has the device. And the equipment required to amplify .00000000001 dB to an audible level would take up the entire room. There is no such thing as a .00000000001 dB signal Whats stops a .00000000001 dB signal from existing? Nothing, it's just indistinguishable from a 0db signal. In other words it's about half the amplitide of a 3db signal... It's a logarythmic scale. Bye. Jasen No, without a reference, its use is meaningless. He was trying to use dB for an absolute signal level, not a ratio. -- Service to my country? Been there, Done that, and I've got my DD214 to prove it. Member of DAV #85. Michael A. Terrell Central Florida |
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