LG VX5400 Service Manual page 9

1.3.7 AMPS Compressor
1) Compression Rate : 2:1
2) Attack Time : 3msec
3) Recovery Time : 13.5msec
4) Reference Input : Input level for producing a nominal +2.9kHz peak requency deviation of transmitted
carrier.
1.3.7 AMPS Preamphasis : 6dB/OCT within 0.3 ~ 3 kHz
1.3.8 AMPS Maximum Frequency Deviation
1) F3 of G3 : ±12kHz (±10% )
2) Supervisory Audio Tone : ±2kHz (±10% )
3) Signaling Tone : ±8kHz (±10%)
4) Wideband Data : ±8kHz (±10 %)
1.3.9 AMPS Post Deviation Limiter Filter
1) 3.0kHz ~ 5.9kHz : above 40log(F/3000) dB
2) 5.9kHz ~ 6.1kHz : above 35dB
3) 6.1kHz ~ 15kHz : above 40log(F/3000) dB
4) Over 15kHz : above 28dB
1.3.10 AMPS Spectrum Noise Suppression
1) For all Modulation
fo+20kHz ~ fo+45kHz : above 26dB
2) For Modulation by Voice and SAT
fo+45kHz : above 63+10log(Py) dB
3) For Modulation by WBD (without SAT) and ST (with SAT)
fo+45kHz ~ fo+60kHz : above 45dB
fo+60kHz ~ fo+90kHz : above 65dB
fo+90kHz ~ 2fo
1.3.11 AMPS Harmonic and Conducted Spurious Emissions : above 43+10log(Py) dB
Copyright@2007 LG Electronics. Inc. All right reserved.
Only for training and serving purposes
: above 63+10log(Py) dB,
where fo=carrier frequency, Py=mean output power in watts.
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