Antenna Path Alignment from Spectracom

For twenty-two years, Pendulum Instruments established itself as a leader in the designing and manufacturing of specialized microwave systems, offering a powerful range of solutions for telecommunications. The company will now do business under the name of Spectracom, and will continue to carry the Pendulum brand label.

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Resolving Interference in the Unlicensed Bands Using a Spectrum Analyzer

The use of the unlicensed bands has become a very popular way to provide access to the Internet (Wi-Fi, WISPs) and to realize an inexpensive and rapidly deployable wireless LAN. In addition, new technologies promise to provide access to even more customers (WiMAX, mesh). However, this ever-increasing deployment of unlicensed radio links brings with it a serious problem: potential interference from other unlicensed radios.

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Featured Products

Antenna Path Alignment Test Sets

Path-Align test sets allow optimization of the signal path between two antenna sites without use of radios, test equipment, ground technicians or even on-site AC power, by using FM headsets for communication between antenna install crews at separate sites.

  Antenna Path Aignment Test Sets 

Pendulum Instruments Cost-Effective Path Align-R Test Solution

 Align-R 2241The Path Align-R Model 2241 is simply the most cost effective test solution on the market for microwave antenna alignment. The Path Align-R set is a high performance, affordable and complete test solution designed to quickly and accurately optimize the transmission path (link) between two microwave antenna sites—all in a matter of minutes! Because the Path Align-R directly drives the site's antennas, the optimization process is done without the need radios, expensive and complex test equipment, ground technicians, on-site AC power, cell phones, two-way radios, etc. Install and Align in Just One Climb.


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Simplifying Path Alignment of Microwave Systems

Wherever a microwave link exists, accurate antenna alignment is required to insure proper communications. This process requires tower crews to physically align the antennas using sophisticated test equipment to monitor the results.

TowerTraditionally the radios were installed at each site and then used to complete the task of optimizing the path. This method is not always reliable, the radios may not be available at the time the test has been scheduled or the radios might not be able to be used if the FCC permits have not been granted.

The process is simplified with the use of the Path Align-R Test Set from Pendulum. Tower installation crews can now perform the entire alignment process before the radios and waveguide are even installed.

Two identical battery operated Path Align-Rs, one for each tower, are carried to the antenna sites. By coax connection to the antenna, each Path Align-R drives its respective antenna directly...while receiving the signal from the other Path Align-R, simultaneously. During alignment, the Path Align-R provides continuous duplex voice communication over the antenna link, using the included headset, allowing the two technicians to communicate with each other. Both units indicate the received path loss, in dB, with 0.1 dB resolution (to -100 dB sensitivity). Each antenna's azimuth and elevation is physically adjusted, while noting the path loss reading, until minimum loss (maximum alignment) has been reached.


For more information contact TESSCO
at 800-472-7373 or email us today.

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