Grundig DSR 6450 HD/CD, Руководство пользователя

Страница: 52 / 55

52 52
INFORMATION
_____________________________________
Technical data
It complies with the standards required for CE labelling.
1. Front Ends
1.1 Satellite
Input connector
1 x F type
Output connector 1 x F type 75 Ohm, IF signal out
Frequency range 950 MHz to 2150 MHz
Input impedance 75 Ohm
Signal level -25 to -65 dBm
LNB power & polarization Vertical 13.5 V ± 1 V
Horizontal 18.5 V ± 1 V
22 kHz tone Frequency 22 kHz ± 2 kHz
Amplitude 0.6 V p-p ± 0.2 V p-p
Demodulation QPSK
Input symbol rate 2 ~ 45 Msps
FEC decoder Convolutional code rate
1/2, 2/3, 3/4, 5/6 and 7/8 with
constraint Length M=7
1.2 Terrestrial
RF Input Connector
IEC type, female
RF Output Connector IEC type, male
Input Frequency Range VHF & UHF; Bands III, IV, V
Input Signal Level -78 dBm ~ -20 dBm
Noise Figure 5 dB typ. 12 dB max.
OFDM-Demod IC MT352 (produced by Zarlink)
Input Impedance 75 Ohm
Return Loss 4 dB typ.
IF Band width 7/8 MHz (-3 dB) typ.
Transmission mode 2 K FFT, 8 K FFT
Constellations QPSK, 16 QAM, 64 QAM
Convolutional code rate 1/2, 2/3, 3/4, 5/6, 7/8
Guards intervals 1/4, 1/8, 1/16, 1/32
RF Input Voltage Out 5 V/30 mA (for active antenna)
2. MPEG transport stream A/V decoding
Transport stream MPEG-2 ISO/IEC 13818
Transport stream specification
Profile & level MPEG-2 MP @ ML
Input T/S data rate 80 Mbit/s max.
Aspect ratio 4:3 (Full, Center, Letter Box), 16:9
Video resolution 720 x 576 (PAL)
Audio decoding MPEG 1 audio layer 1 & 2
Audio mode Stereo, dual channel, joint stereo,
mono
Sampling rate 32, 44.1 and 48 kHz