GENERAL INFORMATION
1-9
Audio analyzer
Audio Voltmeter
Input Impedance Nominally 1 MΩ in parallel with 40 pF
Frequency Range DC and 50 Hz to 50 kHz
AC only 50 Hz to 50 kHz
Polarized DC (below 1 Hz)
Level Ranges 0-100 mV to 0-30 V RMS in a 1,3,10 sequence
Digital readout also in mW, dBm, dBV, dBr (user-selectable)
External load R selectable compensation for 4, 8, 16, 75, 100,
150, 300, 600 ohm
Peak hold facility.
Resolution 1 mV or 1% of reading
Indication 3 digits and barchart
Accuracy ±3% ±3 mV ± 1 digit
Audio Frequency Meter
Frequency Range 20 Hz to 20 kHz
Resolution 0.1 Hz at less than 10 kHz
1 Hz at 10 kHz and above
Indication 5 digits
Accuracy As frequency standard ± 1 digit ± resolution
Sensitivity 50 mV
Audio SINAD Meter
Frequency 1 kHz
Range 0 to 18 dB and 0 to 50 dB
Resolution 0.1 dB
Indication 3 digits and barcharts
Accuracy ± 1 dB
Sensitivity 50 mV (100 mV for 40 dB SINAD). Reading suppressed if audio
voltage is less than 5 mV
Audio Distortion Meter
Frequency 1 kHz
Range 0 to 10 %, 0 to 30 % and 0 to 100 %
Resolution 0.1 % distortion
Indication 3 digits and barcharts
Accuracy ± 5 % of reading ± 0.5 % distortion
Sensitivity 50 mV (100 mV for 1 % distortion). Reading suppressed if audio
voltage is less than 5 mV
Audio S/N Meter
Range 0 to 30 dB and 0 to 100 dB
Resolution 0.1 dB
Indication 3 digits and barchart
Accuracy ± 1 dB
Sensitivity 50 mV (100 mV for 40 dB S/N). Reading suppressed if audio
voltage is less than 5 mV
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