In article .invalid,
Adrian Tuddenham wrote:
Dave Plowman (News) wrote:
.. With PPM4 the reading for a 1v peak to
peak signal.
NITPICK
The PPM4 signal is defined as 1mW into 600 ohms, which is equivalent to
a sinewave of 0.7746v rms or 1.0955 v peak or 2.1909v p/p. (truncation
errors caused the anomalies in the last digit)
/NITPICK
You're absolutely right. Got my peaks mixed up. Not a good idea in this
game. ;-)
Don't worry about the odd decimal point. Narrower than the needle width
anyway. ;-)
--
*He's not dead - he's electroencephalographically challenged
Dave Plowman
London SW
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