feedback EW1604 User Manual

Voltage
Vrms
:. Watts
Vpk
Waveform
in 1Q load
IV
(0(1
1
1
1
OV
',:rn=
1
1
1
::y:~
1 1
1.414
-J2
IVA-····f··
1
1 1.732
..J3
ov v
1
1 1.414
~V·-n--··r-
1
-J2
Fig 2.9 Table showing basic voltage waveforms
2.10 Audio Frequency
Power Comparison
Electronic Wattmeter
Chapter 2
Wrms
1
1
1.225
if
1.342
if
1.414
-J2
In the audio range of frequencies, power measurement
comparisons between two systems having values P
1
and P
2
can be expressed logarithmically in terms of the decibel (dB).
being
one tenth of a bel.
The expression then is:
p2
dB= 10 log -
10 p1
The standard reference unit for P
1
is 1 milliwatt of power in a
600-ohm resistive
load.
I 9

feedback EW1604 Specifications

General

Brand	feedback
Model	EW1604
Category	Measuring Instruments
Language	English