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• wireless hfc extensions for cable tv

• Overview and Key Features
• System Description
• Product Guide
• Data Sheets
• Customer Installs: HFC Extensions
• Customer Installs: CaTV Links
• Contacts for Quote

Wireless HFC Extensions

Wireless AML LINKS are broadband, point-to-point, microwave links designed to transport Cable TV signals (analog and/or digital) from a point of origin to one or more remote hubs for distribution.

 

These microwave links were originally designed to enable Cable Television Systems (CATV) to transport video signals to pockets of subscribers isolated from the main cable plant, bypassing natural or man-made obstacles such as lakes, mountains, buildings, or areas where there are no subscribers. The links are called AML links becausze of the specific technique used for transporting TV signals with either AM, FM or digital modulation.

Cable AML microwave links deliver quality signals at relatively long distances. For example, a typical AML link can deliver CATV signals up to 40km with the same or better quality than fiber or coaxial cable.

Cable AML microwave systems typically consist of a transmitter with a dish antenna at the Headend site feeding a receiver connected directly to the trunk cable system at one or more hub sites. Because the receiver feeds the trunk cable system directly, there is no need for interface equipment or facilities at the receive site.

AML is a line-of-sight technology. If there is no line-of-sight between transmitter and receiver, one or more on-frequency repeaters can be used to complete the link.

Wireless HFC Extensions

AML systems generally transmit in one direction -- downstream -- for distribution. However, as upstream data channels are incorporated more and more into Cable TV plants, Cable AML developed two-way links to accommodate DOCSIS upstream signals.

This is generally done by adding receive capability at the Headend site and transmit capability at the hub site(s), making the microwave links full duplex. Cable AML is the leader in this technology - what we call Wireless HFC Extensions.

Wireless DOCSIS Return

Cable AML offers Cable TV operators with one-way cable systems a way to provide DOCSIS Cable Modem service at low cost without necessarily implementing the expensive cable plant upgrade from one-way to two-way.

The Wireless DOCSIS Return System called the BWA-2000C allows cable operators to provide DOCSIS Cable Modem service in a one-way only cable plant. The system works by installing wireless return transmitters at several nodes in the cable system, providing a wireless path for the return of the DOCSIS upstream signal to the Headend. The return link can be implemented in any licensed frequency band.