Samsung SCH-3500 서비스 매뉴얼
SAMSUNG Proprietary-Contents may change without notice
2-2
Specification
2-2 AMPS Mode
TRANSMITTER
RF output power
: 0.6 W (+2/ - 4 dB)
Carrier ON/OFF Conditions
“ON” Condition
: within ± 3 dB of specification output (in 2mS)
“OFF” Condition
: below - 60 dBm (in 2mS)
Compressor
Compression Rate
: 2:1
Attack Time
: 3 mS
Recovery Time
: 13.5 mS
Reference Input
: Input level for producing a nominal ± 2.9 kHz peak
frequency deviation of transmitted carrier
Preamphasis
: 6 dB/OCT within 0.3 ~ 3 kHz
Maximum Frequency Deviation
F3 of G3
: ± 12 kHz (± 10 %)
Supervisory Audio Tone
: ± 2 kHz (± 10 %)
Signaling Tone
: ± 8 kHz (± 10 %)
Wideband Data
: ± 8kHz (± 10 %)
Post Deviation Limiter Filter
3.0 kHz ~ 5.9 kHz
: above 40LOG (F/3000) dB
5.9 kHz ~ 6.1 kHz
: above 35 dB
6.1 kHz ~ 15 kHz
: above 40 LOG (F/3000) dB
Over 15 kHz
: above 28 dB
Spectrum Noise Suppression
For All Modulation
f
0
+ 20 kHz ~ f
0
+ 45 kHz
: above 26 dB
For Modulation by Voice and SAT
f
0
+ 45 kHz
: above 63 + 10LOG (Py) dB
For Modulation by WBD (without SAT) and ST (with SAT)
f
0
+ 45 kHz ~ f
0
+ 60 kHz
: above 45 dB
f
0
+ 60 kHz ~ f
0
+ 90 kHz
: above 65 dB
f
0
+ 90 kHz ~ 2f
0
: above 63 + 10LOG (Py) dB
(where f
0
= carrier frequency,
Py = mean output power in watts)
Harmonic and Conducted Spurious Emissions
: above 43 + 10 LOG (Py) dB