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  Digital Microwave Transmission Equipment Current Location: Home >> Digital Microwave Transmission Equipment   
 

MKQR-668 high-speed IP-ASI Digital Microwave

日期: 2015-10-15

MKQR-668 High-speed IP-ASI Digital Microwave

 

System advancement

The system innovation is channel coding method, error correction of coding, and modulating. The new modulation and coding scheme can make QEF received within 1.7-1dB of shannon limit in theory. It is the ultimate edition in commucation industry. Its demodulation threshold is superior to traditional PDH/SDH communication microwave for at least 3dB. It means that with the same power and same antenna aperture configuration, the tranmission speed can increae 50%.

 

System composition:

The system consists of IDU, OUD and antenna feed system.

IDU is 1 u standard case, with 12 ASI physical ports(bidirectional type has 6 local input ports ,and6 output port on corresponding termimal ) and 1 RJ45 gigabit IP internets. ASI port and gigabit IP internet share 1 microwave digital channel. in different modulating mode and different physical bandwidth, the high transmitted rates are as below:

BandwidthQPSK8PSKMbps16APSK32APSK
28MHz416282103
55MHz79118158198
75MHz105158211264


Note
1. Rate unit: Mbps.

2. Other broadband is from 8Mhzto 150MHz ( customizable). The maximum rate increases and decreases in proportion with bandwidth.

3. Using 150MHz bandwidth and polarity diversity. The maximum can reach 2000Mbps bidirectionally and 1000Mbps unidirectional.


The front panel of IDU
前板 01.jpg

The back panel of IDU

后板 01.jpg

 

IDU technical parameters:

ASI data stream port:   6 ASI stream input ports, and 6 ASI stream ports  for passing back ASI stream from the corresponding termimal ports.

IP connector technical parameters:     1 IP channel: accordant with the standard fo IEEE802.3 1000Base-T/RJ4.

ODU and the antenna feed system ODU work within 7/8/11/13GHz of WLAN band,  dividing into unidirectional transmission and bidirectional transmission.

 

Application Area

1With ASI port which is specific for Radio and TV industry. The port is not restricted with any regulations. It is transparent transmission. Taking the example of the domestic widely-used National standard digital TV coverage network, the central apparatus room can transmit 1 to 6 ASI streams to far-end.
8 11G单向IP ASI数字微波 英文.JPG

 IDU can apply in the upgrading and reconstruction for the previous microwave rate of exsiting broadcast and tv system. On the premise of phase noise parameter supporting 8PSK modulating mode in the previous microwave system, it can double the rate in the exsiting channel by replacing the previous ODU with our ODU.


 2. IP network transmission: work in frequency division full-duplex mode. Only if the receiving level is higher than threshold, the rate is unchanged between transmission of 1KM and 50KM. This is the essential different from traditional wireless network bridge.

As shown in the picture
11G双向IP ASI 数字微波 英文.JPG


 
 
 
 

Tel:86-773-5800805/5820488    Fax:86-773-5820488    E-mail:glmingke_88@hotmail.com 

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