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Customer Installs

Multicanal Expands Coverage with Two-Way Repeater

Two-way MMDS repeaters are being installed by Multicanal in Asuncion (Paraguay) to provide wireless Internet service to several areas previously served by one-way repeaters for TV signals only.

With the new two-way repeaters, TV subscribers in the coverage areas will also be able to subscribe to wireless Internet service.

Cable AML’s 10-Watt two-way repeaters provide TV and Wireless Internet service in an area of several kilometers radius.

According to Carlos Esteche, “The repeaters were real easy to install with practically no interruption to the TV service.”
Carlos Esteche, Julio Fernandez and Miguel Orsuza inspect an antenna prior to installation. Repeater antenna mounted on the repeater tower.


Outdoor Upstream Receivers for Wireless DOCSIS Service

Cable AML has supplied several custom-frequency upstream base station receivers to wireless DOCSIS systems in Siauliai and Panevezys, Lithuania. According to Jevgenij Plaksin of Balticum TV, the outdoor base station receivers make it possible to increase system capacity in a cost-effective manner by sectorizing the upstream portion of the system. Balticum TV Ltd is one of the largest Cable TV operators in Lithuania, providing “triple play” (TV, Internet and IP Telephony) service. The company has been providing DOCSIS cable modem service in its cable plant since 1999 and wireless Internet in is Kalipeda MMDS service since 2002.

The Cable AML receivers were installed in November of 2005 in Siauliai and in December in Panevezys. Both places are now in operation with commercial subscribers.


Outdoor wireless DOCSIS upstream receivers installed in Lithuania.

Wireless Data System Backs Up Fiber In Baja California


Ruben Barcenas during system training at Cable AML.

A wireless data system has been installed in La Paz, Baja California (Mexico) to provide redundancy backup to a high capacity fiber system.

Cable AML’s BWA-2002 system provides IP-based high throughput data service between a centrally located base station and a number of subscriber stations. Because of the Point-to-Multipoint architecture, service to additional customers can be easily provided by simply adding additional remote units.

The system’s base station was installed at the same site planned for an MMDS system and shares the same transmitter and antenna.

Ths system shows how wireless data systems can provide path redundancy to critical fiber data links in dense urban environments where frequent construction activity is likely to result in interruption of service due to fiber cuts.


Broadband Wireless System For Nigeria

Mr. Sam Ikoku, President of Proper Communications, Inc. with the BWA-2002 base station equipment

Cable AML, Inc has delivered a broadband wireless access system to be installed and commissioned in Abuja, Nigeria, in June of 2003.  The full-duplex, high-speed data system is the first of several fixed-wireless communication systems to be installed by Proper Communications in key cities around the country. 

The system, which operates in the MMDS frequency band normally used for data and multi-channel video, will be dedicated exclusively to high-speed data communications and VoIP applications.  The strong demand for Internet access, coupled with recent advances in IP telephony equipment, have made it financially attractive to offer these services as the primary application of the system.  The operator plans include peer-to-peer, local and long distance telephony services at a competitive cost.  The promise of VoIP has been one of the main reasons why Cable AML has been delivering IP-centric, DOCSIS-compatible fixed-wireless systems since 1998.

The system uses standard, DOCSIS-compliant CMTS and Cable Modem equipment.  The base station transceiver is a single Cable AML Model ITRX02-100C broadband transceiver selected to broadcast multiple data and digital TV carriers over a distance of at least 25 kilometers.


2.5 GHz System for Multi-channel TV and Two-Way Data

Cable AML has delivered the first BWA-2002D+ system to be installed in South East Asia. The system simultaneously broadcasts multi-channel analog and/or digital TV and provides two-way IP connectivity for High-Speed Internet Access and other IP high performance applications.

The system is based on Cable AML's broadband Transceiver Model TRX02-250C, a compact yet powerful unit which provides multi-carrier downstream capability and high-sensitivity upstream receive functionality specifically designed for wireless Internet service.

The macro-cell system is designed to provide 180- degree azimuth coverage to a distance of 20 Kms with a single base station. The base station also houses the TV headend and the NMS (Network Management System) for the two-way data system. All of the base station indoor equipment (transceiver, headend modem termination system and network management system) fits in a single enclosed rack.

The system allows operators to combine two services through a single base station infrastructure for maximum revenue at minimum capital deployment cost. Two revenue streams can be realized from different subscribers: multi-channel residential TV service and two-way high-speed Internet access for residential and institutional subscribers.


Broadband 3.5 GHz Fixed Wireless System Delivered

Cable AML has delivered a state-of-the-art FWA (Fixed Wireless Access system) operating in the 3.5 GHz band. The system was designed to meet the requirements of a recently auctioned fixed wireless 3.5 GHz band in Asia.

Cable AML's BWA-2003 provides a standards-based wireless platform for enabling next-generation IP-based services. The system allows 27 Mbps shared data bandwidth per sector, with easy expansion capability up to 100 Mbps, while maintaining full IP functionality.

The BWA-2003 is an open, modular system, which is attractive to operators because they no longer need to worry about proprietary systems that can quickly become obsolete. The BWA-2003 provides High-speed Internet access, LAN Extensions, Virtual Private Networking, Voice over IP, Video Conferencing, Distance Learning and Dedicated High-speed connections in a single, powerful and rugged package.

The BWA-2003 features shared access based on the latest FDM/TDM/TDMA technology for maximum flexibility, power and capacity. The system provides high-speed connectivity to a large number of subscribers with high spectral efficiency, thanks in part to features such as programmable modulation formats (64-QAM downstream and QPSK and 16-QAM upstream).


Two-Way Repeater Expands Coverage of Broadband Wireless System

Cable AML has delivered a bi-directional (two-way) repeater designed to extend service to a "shadow" area within the main beam of an MMDS system that simultaneously broadcasts one-way multi-channel video and provides two-way data service.

Cable AML's model IAR02-030 on-frequency, active, bi-directional repeater allows extension of coverage to areas not illuminated by the main antenna. Systems originally designed in a macro-cell configuration for multi-channel video distribution (MMDS) service often have pockets of subscribers which can not receive signals due to line-of-sight blockage from natural or man-made obstacles and/or topographic features such as mountains or depressions. Cable AML's two-way repeaters are designed to extend the reach of these systems to simultaneously provide multi-channel video and two-way data coverage.

The repeater was installed to illuminate the area near downtown Asuncion (Paraguay). The area includes most of the central business district, and it has a relatively low density of TV subscribers but a high-density of two-way data subscribers. Cable AML's repeater is a viable and cost-efficient approach to extending two-way data service to a high yield area.

The repeater, model IAR02-030, is a bi-directional, broadband, multi-carrier active repeater designed to operate upstream in the 2.150 to 2.162 GHz band and downstream in the 2.5 to 2.7 GHz band. Other models with higher power levels and at other frequency bands are available.


Broadband Wireless Access System Deployed in Beijing

Cable AML has delivered key hardware for a multi-channel Broadband Wireless Access System for two-way data communications and online services in the People's Republic of China (PRC). Using point-to-multipoint wireless technology as the "last-mile" solution, the system will make it possible to offer high-speed Internet connections to schools and business customers in Beijing.

"Wireless is the best way to rapidly offer high-speed Internet service in China," said Jeffrey G. Sun, CEO of ASPAC Communications Inc., "We believe that the BWA-2001 system will allow us to quickly get subscribers on line and provide wireless services cost effectively. The Internet market in China has grown over 150% to 22.5 million users in the past year and this rapid pace of growth is continuing. The timing of this opportunity is excellent for ASPAC."

Cable AML's family of BWA (Broadband Wireless Access) systems is a flexible and scalable point-to-multipoint "last mile" broadband solution system designed to provide high-quality, low-cost, high-speed Internet and other telecommunications services to the customers.

ASPAC Communications, Inc. (ASPAC, www.aspac-com.com) is a leading provider of fixed wireless broadband interactive communications and online services in the People's Republic of China (PRC) through its joint venture subsidiary YeeYoo.net (YeeYoo). ASPAC's joint venture partners include China Education and Research Network (CERNET), second largest ISP in China, and Beijing Sino-Tech Science and Technology Development Center (SINOTECH). The combination of CERNET and SINOTECH provide the joint venture with access to over 20,000 kilometers of nationwide fiber backbone and operation services, reaching 35 major cities or over hundreds of millions of potential clients in the People's Republic of China (PCR).


Broadband Wireless Access System Delivered in MMDS Band

Cable AML has delivered a BWA 2002 integrated broadband wireless access system. The BWA-2002 System is a full-duplex, two-way, fixed-wireless communication system operating in the MMDS / MDS frequency bands (2.500 to 2.686 GHz for downstream and 2.150 to 2.162 GHz for upstream). 

The system is designed to co-exist with an existing multi-channel analog TV distribution service. Future upgrades under consideration include additional channels of two-way data and a digital upgrade of the multi-channel video system. 

The main application of the system is for high-speed Internet access, although other IP-centric services such as LAN (Local Area Network) extension, VPNs (Virtual Private Networks) and VoIP (Voice over IP) can also be implemented depending on market conditions. 

The BWA-2002 system utilizes the 2500 to 2686 MHz MMDS band for downstream transmission. The band is divided into thirty-one channels, each 6 MHz wide. Each downstream data channel has a throughput of 30 Mbps (using 64 QAM modulation format). The upstream channels are in the 2150 to 2162 MHz band. Upstream channels of 0.2 MHz to 3.2 MHz bandwidth can be implemented. Upstream data throughput is up to 5.12 Mbps with QPSK modulation or 10.24 Mbps with 16QAM-modulation.

As with any system developed by Cable AML, this BWA equipment was integrated at our Torrance facility and tested as a system.

When the testing was completed, the customer's engineering staff attended a comprehensive training program on system deployment, operation, and maintenance at the Cable AML factory in Torrance. The training was conducted under near operational conditions using the customer's own equipment. This approach to training serves to make field deployment and operation more effective.


Cable AML Offers IP-Based Broadband Wireless Access System

A new addition to state-of-the-art wireless technology has recently been unveiled by Cable AML - an IP-based, full-duplex, two-way, Broadband Wireless Access System.  The system, dubbed the BWA-2002, is a fixed-wireless communication platform primarily intended for applications such as high-speed Internet access, LAN extension, virtual private networks (VPN's) and voice over IP (VoIP) applications using the MMDS frequency band (2.1 - 2.6 GHz).

The MMDS spectrum is sub-divided into 31 channels, each 6 MHz wide.  Each individual channel can be assigned for either down-stream data transport or TV distribution.  Each downstream channel can provide a data throughput of 30 Mbps with 64 QAM modulation format, or six compressed digital TV programs, or one standard VSBAM NTSC analog TV program (PAL/SECAM programs can be implemented with a different channel plan).  Upstream transport is implemented by multiplexing 3 carriers for every 6 MHz of available bandwidth.  Each QPSK-modulated carrier has a nominal bandwidth of 2 MHz and provides an upstream data throughput of 2.56 Mbps.

"Since the BWA-2002 is designed to operate within the standard MMDS channelization scheme, it offers MMDS operators the opportunity to substantially increase revenues for a moderate incremental investment," says Norman Woods, Vice President of Cable AML.  "By adding high-speed data transport functionality to their current offering of TV distribution, operators can attract new subscribers and offer their current subscribers more services."

The BWA-2002 is one of several systems in the BWA-2000 family of Broadband Wireless Systems developed by Cable AML.  Other models operate in the 3.4 to 3.6 GHz and 10.15 to 10.65 GHz bands.

Cable AML is a global provider of Point-to-Point Microwave Links for multi-channel applications and Point-to-Multipoint Wireless Access Systems (including LMDS, LMCS and MMDS) at frequencies from 2 to 42 GHz.  The company's products include four families of Broadband Access Systems for fixed-wireless applications as well as broadband analog and digital transmitters, receivers, repeaters, and transceivers for multi-channel digital and analog links.  Having produced hundreds of systems for cable, wireless cable, and telecommunications customers in more than 22 countries, Cable AML has a proven capability of designing and implementing systems optimized to fit local infrastructure and frequency regulations.


Cable AML Demonstrates Broadband Wireless Access System

A new addition to state-of-the-art wireless technology has recently been unveiled by Cable AML-an IP-based, full-duplex, two-way, Broadband Wireless Access System. The system, dubbed the BWA-2002, is a fixed-wireless communication platform primarily intended for applications such as high-speed Internet access, LAN extension, virtual private networks (VPN's) and voice over IP (VoIP) applications using the MMDS frequency band (2.1 to 2.6 GHz). 

The BWA-2002 is one of several systems in the BWA-2000 family of Broadband Wireless Systems developed by Cable AML. Other models operate in the 3.4 to 3.6 GHz and 10.15 to 10.65 GHz bands. 

The BWA-2002 is designed to operate within the standard MMDS channelization scheme, where the available spectrum is sub-divided into 31 channels, each 6 MHz wide. Each individual channel can be assigned for either down-stream data transport or TV distribution. 

Each downstream channel can provide a data throughput of 30 Mbps with 64 QAM modulation format, or one standard VSB-AM NTSC analog TV program (PAL/SECAM programs can be implemented with a different channel plan). 

Upstream transport is implemented by multiplexing 3 carriers for every 6 MHz of available bandwidth. Each QPSK-modulated carrier has a nominal bandwidth of 2 MHz and provides an upstream data throughput of 2.56 Mbps. 

The BWA-2002 consists of three key subsystems: the headend, the RF transceiver/antenna, and the Customer Premises Equipment (CPE). 

The headend typically houses one or more modems (HMTS or Headend Modem Termination Systems), an SNMP-based integrated Network Management System, and a QoS (Quality of Service) module. Each HMTS can service thousands of subscribers and provides three full-duplex (bi-directional) Ethernet 10BaseT data interfaces to a switched hub. The 10BaseT ports on the switched hub provide direct connectivity to local headend servers and access to Internet and remote servers via a router. 

The RF transceiver/antenna configuration is determined by the system requirements, and can be either co-located with the data equipment or remotely connected via wireline or microwave STL. 

The CPE equipment includes an integrated antenna/outdoor transceiver and an indoor modem. 

Cable AML is a leader in the development and implementation of Broadband Wireless Access Systems. In fact, the BWA-2000 access platform is only one of four access platforms developed over the last two years. 

Our complete Broadband Wireless Access Product Line makes it possible to match the optimum platform to each customer's requirement. Contact Cable AML Sales for further information.