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2. SPECIFICATIONS
The rated or reference full-scale deflection of 1.0 on the 0 - 1 .12 scale of
the Model VP-7721 A is described merely as f.s.d. hereinafter throughout this
instruction manual.
The point of 1.0 is marked with a small green arrow on
the meter panel.
DISTORTION
Fundamental Frequency Range
5Hz to 159.9 kHz in 4 ranges
Frequency
display
and
range
indicator are
common with the oscillator
section.
Distortion Measurement Range
0.003
%
to 100
%
f.s.d. (-90 dB to 0 dB) in 10 ranges
Meter Indication
Distortion indicator
:
True rms detection
Meter reads dB and
%
THD.
Input level indicator : Average detection
Meter reads input level in V rms, dB and dBm.
Fundamental Rejection
5 Hz to 15.99 kHz
^100 dB
16 kHz to 50 kHz
90 dB
50 kHz to 159.9 kHz
> 86 dB
Second Harmonic Accuracy
5Hz to 15.99 kHz
Within +1.5 dB
16 kHz to 50 kHz
Within +2.5 dB
50 kHz to 159.9 kHz
Within +2.5 dB, -4 dB
Residual Noise and Distortion
Depend on input frequency range,
input level and detection bandwidth as
listed in Tables 2-1 and 2-2.
2-1
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