Re: Semantics and wording

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In Reply to: Re: Semantics and wording posted by Dave B on May 23, 1999 at 19:33:26:

You guys have far more knowledge and experience than I do, so it gets hard to argue with you guys real quick !!! Since most of my experience is with RF based equipment using low voltage DC, it's quite possible that the loads presented may be quite different than in audio gear. In my opinion, it would seem that the audio gear would be far more demanding due to reproducing full spectrum sound with much greater dynamic range demands. Then again, the rail voltages on audio gear are much higher and there is typically far less current demand. The RF gear that i'm working with is strictly reproducing voice waveforms in natural speech patterns.
I have measured quite noticeable voltage drops using fine strand 8 gauge wire at lengths of 12 - 15 feet, common to mobile installations. This was with an appr. draw of 10 - 12 amps with peaks into the very high 20 or extremely low 30 amp range. The units are fused at 30 amps and i have never popped a fuse. Duty cycles are relatively short, so heating of the wire shouldn't be a problem.
According to standard wiring practices, 10 gauge should have handled this load with no problems, yet 8 gauge still shows voltage drops with excellent low resistance connections throughout. The equipment also shows lower power output under these conditions using a Bird 43P wattmeter as a reference. This can be verified by using 6 gauge wire or a much shorter length of 8 gauge. If "theory" and reality really work together, how do you explain this ? Sean
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Follow Ups Full Thread

Topic - Wire gauge vs. current saturation and sonics - Sean 21:51:32 05/21/99 (9)

Re: Wire gauge vs. current saturation and sonics - Jon Risch 08:22:24 05/22/99 (8)

Semantics and wording - Sean 10:44:26 05/23/99 (7)

Re: Semantics and wording - Jon Risch 18:25:03 05/23/99 (4)

Re: Semantics and wording - Dave B 19:33:26 05/23/99 (3)

Re: Semantics and wording - Sean 19:59:04 05/23/99 (2)

Re: Semantics and wording - Jon Risch 10:24:51 05/24/99 (1)

Re: Semantics and wording - Sean 22:44:16 05/25/99 (0)

FYI - Dave B 14:47:39 05/23/99 (1)

Re: FYI - mtrycrafts 16:35:47 05/23/99 (0)

Follow Ups

Re: Semantics and wording - Sean 19:59:04 05/23/99 (2)

Re: Semantics and wording - Jon Risch 10:24:51 05/24/99 (1)

Re: Semantics and wording - Sean 22:44:16 05/25/99 (0)

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