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AM700 Audio Measurement Set Service Manual
1–5
Table 1–2: Analog analyzer specifications (cont.)
Capabilities Description
Input characteristics
Maximum Resolution 96 dB below 62.5 mV = 0.9875 mV
Maximum Useable Bandwidth
High Bandwidth Mode 80 kHz
High Resolution Mode 24 kHz
Common-Mode Rejection
At 50 or 60 Hz ≥50 dB
At 1 kHz ≥50 dB. Typically 80 dB on +8 dBu scale, 60 dB on +14 dBu and up,
and typically > 80 dB on less than +8 dBu scale
At 10 kHz ≥45 dB. Typically 80 dB on +8 dBu scale, 45 dB on +14 dBu and up,
and typically > 80 dB on less than +8 dBu scale
At 20 kHz ≥40 dB. Typically 80 dB on +8 dBu scale, 45 dB on +14 dBu and up,
and typically > 80 dB on less than +8 dBu scale
Isolation, Generator to Analog Acquisition Load R = 200 kW Load R = 600 W
10 Hz to 1 kHz ≥90 dB ≥140 dB
>1 kHz to 80 kHz ≥80 dB ≥100 dB
Crosstalk +Noise, Channel-to-Channel
This is a wideband measurement of the level difference
between the undriven channel and the driven channel.
Driven channel input is a +8 dBu sine wave. Undriven input terminated in
≤600 W
Both Channel Input Ranges Set to +8 dBu
High Resolution Mode
15 Hz to 20 kHz ≤–88 dB, typically ≤–100 dB (noise-limited).
Typically ≤–100 dB at full scale on the +2, +8, +14, +20, and +26 dBu
ranges from 10 Hz to 20 kHz.
High Bandwidth Mode
70 Hz to 80 kHz ≤–65 dB, typically ≤–70 dB (noise-limited)
Undriven Channel Set to Autorange
(Set driven channel input range to FS value
indicated below.)
High Resolution Mode
15 Hz to 20 kHz
Input (FS)
+8 dBu
+14 dBu
+20 dBu
≤–100 dB, typically ≤–115 dB (noise-limited)
Typically ≤–120 dB
Typically ≤–125 dB
High Bandwidth Mode
70 Hz to 80 kHz
Input (FS)
+8 dBu ≤–95 dB, typically ≤–100 dB, 70 Hz to 40 kHz (noise-limited)