Relay Board Schematic | ALFA SPID ROTATOR AND CONTROLLER specification

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AlfaSpid Rotator

Using the AlfaSpid Rotator with LONG Cable Distances

By VE6JY

Since the motor uses relatively low voltage DC, a combination of long cable runs and/or thinner than required cable may reduce the voltage at the motor to an unacceptably low value. It may turn in warm weather or light winds but the power will not be available to rotate under more severe conditions.

While it is easy to say just use a heavier cable, this may be costly, impractical or both. I have one tower that is over 1700 feet (approx 500 meters away) and running large cable out there would be very expensive.

My solution is to use this rotator controller's output voltage to control another set of relays that will feed a higher voltage DC to the motor. In the above-mentioned example, I find a voltage between 60 to 80 volts gave suitable performance. This is a pretty extreme case but it illustrates the versatility of this design. The external DC supply voltage needed will vary depending on the DC voltage rating of your motor, the cable size and length of the run. Typically 36 to 50 volts at 3-5 amps should be quite adequate. These DC motors are quite tolerant on their voltage ratings.

Relay Board Schematic

Alfa Radio Ltd. 11211 - 154 St. Edmonton, Alberta, Canada T5M 1X8

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ALFA SPID ROTATOR AND CONTROLLER instruction manual Relay Board Schematic

SPID ROTATOR AND CONTROLLER specifications

The ALFA SPID Rotator and Controller is a cutting-edge solution designed for advanced tracking and positioning applications in various fields, including telecommunications, meteorology, and amateur radio. This sophisticated system combines precision mechanics with leading-edge technology to provide users with unparalleled performance and reliability.

One of the standout features of the ALFA SPID Rotator is its high precision. Utilizing advanced gear mechanisms and robust materials, the rotator ensures smooth and accurate tracking of antennas and other equipment, even in challenging environmental conditions. This precision is crucial, especially for applications that require strict alignment with satellites or specific terrestrial signals.

The controller accompanying the ALFA SPID Rotator is engineered to offer intuitive operation and comprehensive control over the system. Featuring an easy-to-read LCD screen and user-friendly interface, users can set up, monitor, and adjust the rotator's position effortlessly. The controller supports various modes of operation, including manual control, preset positions, and automated tracking, allowing for flexibility in different scenarios.

In terms of technology, the ALFA SPID Rotator employs advanced encoders that deliver real-time feedback on the rotator's position. This ensures accurate tracking and minimizes the risk of signal loss. The system also integrates seamlessly with modern antennas and communication equipment, making it an ideal choice for both professional and amateur applications.

The ALFA SPID Rotator is designed to withstand harsh weather conditions. Its durable construction and weather-resistant components ensure longevity and reliability, even in extreme temperatures and severe weather. This resilience makes it suitable for outdoor installations where other rotators may fail.

Moreover, the ALFA SPID Rotator incorporates a robust safety mechanism that protects against electrical surges and mechanical overloads, enhancing its operational reliability. This feature is particularly important for users in regions prone to thunderstorms or power fluctuations.

Another significant characteristic of the ALFA SPID Rotator is its compatibility with various control systems and software. This versatility allows users to integrate the rotator into existing setups with minimal effort, facilitating enhanced automation and remote control capabilities.

In summary, the ALFA SPID Rotator and Controller stand out in the market for their precision, advanced technology, durability, and ease of use. Whether for professional telecommunications or hobbies like amateur radio, this system offers an exceptional balance of performance and reliability, making it a preferred choice for users seeking state-of-the-art tracking solutions.