C4.8 T854 Functional Testing M8SL2-00-002-812
© Copyright Tait Electronics Limited August 2004. All rights reserved.
4.6 Audio Level Input Sensitivity
1. Adjust RV210 (line sensitivity) fully clockwise.
2. Check that the input sensitivities are better than those specified below:
Note: A degraded signal to noise ratio can be expected with the compressor
selected. The extent of the degradation is dependent on the audio input
level.
Line Input 600Ω, ±3kHz (±2.4kHz) [±1.5kHz] deviation at 1kHz:
with compressor –50dBm
without compressor –30dBm
Microphone Input 600Ω, ±3kHz (±2.4kHz) [±1.5kHz] deviation at 1kHz:
with compressor –75dBm
without compressor –55dBm
CTCSS Input 1kHz deviation at 150Hz 500mV
rms
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