In Reply to: Re: John, you were sucker-punched, then piled on, by the Usual Suspects. posted by john curl on June 9, 2003 at 10:44:03:
Steve, I see a point of confusion in what I just stated:
30mV in has NOTHING to do with the level of distortion out. The ST1700B normalizes the gain. -80dB distortion =.01% distortion. This would put out about -30dbV through the distortion output bnc connector on the front panel, and the meter would be at max. The residual is less than this and is typically about -95dB in distortion or about -45dBV from the distortion output jack. This is also about where the null resides, as it is the PRIMARY distortion measurement limitation to the THD system, in this example. The null moves a little, depending on condition of the analyzer, fine adjusting,and input level, but I am concerned about RELATIVE differences, so it doesn't effect my results significantly.
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Follow Ups
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 06/9/0315:49:23 06/9/03 (21)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - Steve Eddy 16:35:25 06/9/03 (20)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 18:02:06 06/9/03 (19)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - Steve Eddy 19:01:12 06/9/03 (18)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 21:33:37 06/9/03 (17)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - Steve Eddy 21:56:59 06/9/03 (16)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 00:56:09 06/10/03 (15)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - Steve Eddy 11:11:43 06/10/03 (13)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 15:06:35 06/10/03 (0)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 14:30:29 06/10/03 (11)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - Steve Eddy 15:52:01 06/10/03 (10)
- This is depressing... - Charles Hansen 07:58:42 06/11/03 (9)
- Re: This is depressing... - john curl 00:11:00 06/12/03 (0)
- Re: This is depressing... - Steve Eddy 10:52:27 06/11/03 (1)
- Huh? - Charles Hansen 13:05:23 06/11/03 (0)
- I don't know who you are either... - Monstrous Mike 10:44:59 06/11/03 (4)
- Charles Hansen - Manufacturer, Ayre Acoustics, Inc. - Leisure7 12:42:45 06/11/03 (3)
- Re: Charles Hansen - Manufacturer, Ayre Acoustics, Inc. - Monstrous Mike 09:15:15 06/12/03 (0)
- Re: Charles Hansen - Manufacturer, Ayre Acoustics, Inc. - Steve Eddy 12:56:00 06/11/03 (1)
- Agree - Leisure7 15:42:32 06/12/03 (0)
- No, I don't think so..There are relevant, unanswered questions.. - jneutron 09:06:48 06/11/03 (0)
- Re: John, you were sucker-punched, then piled on, by the Usual Suspects. - john curl 09:38:32 06/10/03 (0)