Re: dBu

2000-01-21 Thread Dan Kwok
John, thanks for the reference. It gave a good historical perspective. It would seem the use of dBv (.775 V reference) and dBV (1.0 V reference) created enough confusion for the pro audio industry to introduce the new unit dBu. While not an active observer in the pro audio scene, I would

RE: dBu

2000-01-21 Thread John Juhasz
Dave, Here's a link which explains some of the dB variations including dBu. -http://www.music.mcgill.ca/~martin/textbook/electronics/03.html John Juhasz Fiber Options Bohemia, NY > -Original Message- > From: Dave Wilson [SMTP:dwil...@babtps-us.com] > Sent: Thursday, Janu

dBu

2000-01-21 Thread John Radomski
Dave, dBu is dB relative to .775 volts. dBu decibels referred to the voltage equivalent of 0 dBm into a 600 ohm load. 0 dBu = 0.775V = ­2.2 dBV. I hope this helps John Radomski Compliance Engineer Inter-Tel Integrated Systems

RE: dBu

2000-01-21 Thread Lacey,Scott
10. Scott Lacey > -Original Message- > From: Dave Wilson [SMTP:dwil...@babtps-us.com] > Sent: Thursday, January 20, 2000 4:16 PM > To: emc-p...@ieee.org > Subject: dBu > > > Has anyone come across this unit before? It's referenced in EN55103-2 &g

Re: dBu

2000-01-20 Thread Dan Kwok
Dave Wilson wrote: > > Has anyone come across this unit before? It's referenced in EN55103-2 > (Professional Audio/Video Immunity) for audio frequency common mode immunity > testing. > Hi Dave, Are you sure it isn't dBvu? If my memory serves me right, the VU is a volume unit commonly used in p

dBu

2000-01-20 Thread Tony J. O'Hara
Hi Dave Here is probably more than you ever wanted to know about dBu. It is extracted from the book "Audio Precision Audio Measurement Handbook." Audio Precision is the world's leading manufacturer of precision audio measuring and test equipment. There is also a rather lengthy pag

dBu

2000-01-20 Thread Dave Wilson
Has anyone come across this unit before? It's referenced in EN55103-2 (Professional Audio/Video Immunity) for audio frequency common mode immunity testing. I realise it may be a misprint, but I thought someone else may have already looked into it. Dave Wilson BABT Product Service -