Z-Com ZMAX-8210-I Manual De Usuario

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(Automatic Repeat Request) 
PHS 
(Payload Header Suppression) 
Yes 
Site Survey 
Yes 
Signal Indicators 
 
Radio 
Standard IEEE 
802.16-2004, HiperMAN/WiMAX Fixed Profile 
Modulation 
OFDM modulation, 256FFT points; BPSK, QPSK, 16-QAM, 
64-QAM 
RF Frequency 
3.4 to 3.6 GHz in steps of 250kHz 
Bandwidth 
1.75MHz, 3.5MHz & 7MHz 
Duplexing Method 
TDD and HFDD 
Spectral Efficiency 
5 bits/sec/Hz    (64-QAM uncoded) 
Supported Frame Lengths 
2.5,4,5,8,10 & 20 ms 
Tx Maximum output Power   
(at antenna connector) 
20.5dBm 
Tx Center Frequency Tolerance 
< ±2% subcarrier spacing 
Symbol Clock Frequency Tolerance 
< ±5ppm 
Frequency Control 
Automatic Frequency Control (AFC) 
Spectral Mask Requirements 
Type-G mask ETSI-EN301021 
Power Control 
Automatic Gain Control (AGC), 
Automatic Link Control (ALC) 
16-QAM 3/4 
64QAM 3/4 
Adjacent Channel Rejection C/I 
-11dB -4dB 
16-QAM 3/4 
64QAM 3/4 
Nonadjacent Channel Rejection C/I 
-30dB -23dB 
Burst Type 
Typical [dB] 
BPSK 1/2 
-31.5 
QPSK 1/2 
-31.5 
QPSK 3/4 
-31.5 
16QAM 1/2 
-31.5 
16QAM 3/4 
-31.5 
64QAM 1/2 
-31.5 
Relative Tx Constellation Error 
(@20.5dBm output power) 
64QAM 3/4 
-31.5 
Burst Type 
Typical [dB] 
BPSK 1/2 
-95.0   
Maximum Rx Receiver Sensitivity 
(BER <10-6) 
QPSK 1/2 
-93.0   
Appendix  A  Specifications                                                                                                                                        -  32  -