900MHz Ethernet / Serial Cable Replacement, WETH® Wireless Link

Configurable radio module customizable to fit your form factor, interface, and requirements:

Quest has developed and deployed customized radio modules in several of its recent product offerings. A recent example of this technology is our 900MHz Ethernet / Serial Cable Replacement Module that provides a point-to-point Ethernet cable replacement at ranges of over 2 miles. The module’s serial mode replaces an RS-485 cable and works at ranges of over 6 miles. The technology employs frequency hopping and maintains synchronization at even the lowest of RF levels. The discrete PA and LNA provide efficient RF processing, while integrated and discrete filtering provide the extra signal conditioning that enhances performance. Drive an external antenna through a connector or use the unique PCB trace antennas that provide for the highest efficiencies possible using standard and cost effective FR4 materials. The processing engine has ample bandwidth to include custom communication interfaces, sensor interfaces and algorithms.

The Quest radio module can be found in other popular products and is customized for each application. Customization parameters include data rates, transmit power, dynamic transmit power control, topology (point-to-point, star, dynamic mesh), antenna configuration and data interface. The module can also be modified to fit into the form factor of your product. We’ve done the hard part of designing the module, the easy part is making it work for you.

Many other companies use the design approach of transmitting higher power levels to obtain desired link distances, cluttering the airwaves with unnecessary noise and interference. Instead, the Quest radio technology focuses on extracting desired signals from the noise and using reduced power, which is a must in battery-based applications. Being able to obtain the link using sensitive receivers immune to interferers produces more efficient designs that are more readily able to pass certifications.

*Below:  Illustration of Quest components powering a wireless retail product.  Pentair and Screenlogic are trademarks of Pentair Water Pool and Spa, Inc. or its corporate affiliates