The decibel
"Eeyore" wrote in message
...
Iain wrote:
If you disagree, please post your definition of 0dBm.
That was my reason for starting this thread, to ask for
suggstions or improvements to the page.
I've been giving some thought to it. Will come back on this.
Looking forward to your version.
The Crowhurst reference to dBu is from circa 1973. It
may have been he who suggested the term.
I have modified the page to read:
dBu
"When 600 ohm source and load impedances were no longer common in
professional audio, an alternative term, the dBu, came into wider use after
much discussion within the audio industry during the 1970s. The dBu may be
used when working into an unknown or unspecified load impedance. It is
referenced to 0.775 Volts into any impedance"
Regards
Iain
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