Are AvL Technologies Satellite Dishes really better?

YES!AvL Technologies:   Satellite Antennas with True Technical Advantages

Presented by Squire Tech Solutions (Authorized Platinum AvL Technologies dealer)

AvL-Roto-Loc-Azmuth AvL-Roto-Loc

Cost of Ownership Advantages

•           No maintenance required

•           Standard warranty 1 year electrical and 2 years mechanical, extended warranty available

•           No technical capabilities or background required of the operator for 100% reliable operation and service

•           No additional test, monitoring or PC required for operation

•           Extra ordinary levels of availability and reliability

•           24 hour availability of real technical support on the unusual occasions when required

•           Quality components and superior designs ensure maximum product life

•           AvL committed to extra ordinary levels of service and support for the life of the product

 

Customer Support Advantages

•           Exceptional Customer Service – 24/7 Customer Support by both Squire Tech and AvL

•           Initial antenna deployment representation

•           Squire Tech and AvL Pre-sale support

•           AvL Dealers Training – 2 Day comprehensive training course

•           Basic antenna assembly

•           Antenna calibration

•           Cable drive repair and replacement

•           Antenna controller troubleshooting

•           Field repair training

 

Technical Advantages

  • AUTO-POINT and AUTO-LOCK – A single button push automatically deploys, acquires and precisely peaks on any visible satellite worldwide within 3 minutes. Instant broadband at a finger tip. AvL Mobile Software enables a satellite acquisition lock at an average time of 3 minutes or less, as opposed to a competitive average of 8 to 10 minutes.
  • DOES NOT REQUIRE:  – Laptop or a PC, RF or Test equipment, Telephone coordination, or “SAT Table” download or install
  • Low stow height options.
  • Feed boom mounting options
  • Mature designs in very high levels of production and supply throughout the world provide reliable and dependable solutions to field requirements.
  • Zero antenna maintenance.
  • Spare Parts Kit – Available for customer specific applications.  Squire Tech and AvL both inventory
  • Zero backlash.
  • Auto-acquisition; reliable and repeatable.
  • Roto-Lok® – total freedom from backlash enables optimum satellite peaking. Drive systems suffering backlash can never be optimized.
  • Lightweight – quickly and easily mounted on any vehicle.
  • Communicates directly with modem to provide GPS coordinates, enables /disables transmitter and checks modem status.
  • Compatibility – compatible with any satellite modem manufacturer or technology.
  • Safety – Single button push stow, automatic stow capability if tilt sensors activated or vehicle moved.

Maintenance Advantages

  • Zero antenna maintenance.
  • Spare Parts Kit – Available for customer specific applications.  Squire Tech and AvL both inventory

Operational / Technical Advantages

 

PRECISION & RELIABILITY – Jackscrews and gearboxes cannot compare with the performance of Roto-Lok®.

  • Backlash free & high stiffness. The load bearing elements (cables) are statically tensioned to increase the stiffness of the drive. In a gear drive, such tensioning would create friction and shorten the useful zero-backlash life of the gears.
  •  Multiple spring-loaded cables carry the load and provide superb smoothness by averaging the work done by each individual cable. This virtually eliminates “cogging” found in traditional gear drives.
  • High efficiency that is comparable to the loss created by the use of a high quality bearing. Because the drive is stiff and efficient, smaller motors, wiring and power supplies can be used.
  • Cable wear from sliding or stretching is minimal. The cable simply picks up or lays down on the capstan and drum.
  • Proven track record with thousands of antennas operating in adverse weather environments such as the cold weather of Alaska to the high temperatures of the Iraq desert.

 


 AvL-Roto-Loc-Drawing

Roto-Lok-Rotary Drive Technology

 

  •  The Roto-Lok® Rotary Drive is an elegant, simple, technology that utilizes the averaging effect of many cables wrapped around a drive capstan and an output shaft.
  • The Roto-Lok® Rotary Drive was originally invented as an inexpensive way to rotate large observatory telescopes accurately and smoothly. (Roto-Lok® is patented under Patent 5-105-672).
  • The driven capstan and output shaft (drum) are connected by multiple precision cables wound in a figure eight pattern around the shaft and capstan. The cables share the load, each with a tension spring at one end and a fixed mounting point at the other.
  • The drive carries torque through the friction of the cables on the drum and capstan, and also through cable tension. The springs accommodate wear and keep the proper design tension throughout the length of the cable. Because the Roto-Lok® drive is constantly preloaded in both directions, there is absolutely no backlash. Unlike gears that wear and degrade performance, the springs keep the proper tension indefinitely; resulting in “like new” performance throughout many millions of cycles. The Roto-Lok® drive requires no lubrication, and is virtually maintenance free.
  • Roto-Lok® Rotary Drive capstans and output shafts typically have smooth cylindrical shapes that are relatively easy to produce. Either may be grooved to improve cable tracking, and can include mounting, weight-reduction, and other necessary features. The arrangement of the Roto-Lok® drive places the capstan and output drum close together, minimizing the unsupported free span of cable, and maximizing the drive’s coupling stiffness. The many cables serve to average the rotation rate so that imperfections, dirt or other slight irregularities on a single cable or drum do not have a significant effect. This results in superb drive smoothness with no cogging or drive rate irregularity.
  •  Roto-Lok® drives provide useable ratios from 1:1 to 20:1 or higher. Because of their extremely high efficiency (in excess of 99%), they can also be back-driven to provide a speed increase rather than speed reduction.

Among the many advantages and benefits of the Roto-Lok® drive:

  • Backlash free & high stiffness. The load bearing elements (cables) are statically tensioned to increase the stiffness of the drive. In a gear drive, such tensioning would create friction and shorten the useful zero-backlash life of the gears.
  • Multiple spring-loaded cables carry the load and provide superb smoothness by averaging the work done by each individual cable. This virtually eliminates “cogging” found in traditional gear drives.
  • Cable wear from sliding or stretching is minimal. The cable simply picks up or lays down on the capstan and drum.
  • High efficiency that is comparable to the loss created by the use of a high quality bearing. Because the drive is stiff and efficient, smaller motors, wiring and power    supplies can be used.
  • Application of the Roto-Lok® rotary drive typically provides the following benefits:
  • Reduces motor power proportional to drive ratio.
  • The drum can be designed with a large through-hole to accommodate optical beams or cables.
  • Either the drum or the capstan can be fixed. Fixing the drum often results in no relative motion between the motor, capstan, and payload. This improves the packaging of some systems.
  • Conformable form factor. The Roto-Lok® Drum can be integral to the mechanical structure, and can be shaped as an arc segment, or a complete circle.
  • Conformable shapes often reduce weight when compared to other types of drives.
  • The drive works equally well underwater, or in dusty or oily environments.
  • It can be used in clean rooms, food or pharmaceutical processing or medical environments.
  • Shock and vibration resistant.
  • High torsion stiffness, high torque capacity and its total freedom from backlash are often the primary design criteria in selecting the Roto-Lok®.

Torsion Stiffness

To achieve extremely accurate rotary positioning, the coupling between a motor and the load must be so stiff that a miniscule position change of the motor armature produces a corresponding change in the position of the payload. If the drive transmission is not stiff enough this motion is lost in torsion windup and the payload does not move. AvL has delivered hardware with one micro radian (57 millionths of one degree) positioning capability and believes that it can achieve a 10 times better resolution if or when required.

Torque Capacity

AvL has designed drives from 3 oz-in of output torque to more than one million foot pounds. There is no theoretical limit to the size loads that can be positioned with the Roto-Lok® drive. Drum diameter is a major factor in designing high-torque drives. Doubling the diameter of a Roto-Lok® drive allows for designing to an eightfold increase in torque capacity relative to the original diameter.

Freedom from Backlash

The drive’s freedom from backlash makes it the preferred technology in applications where precision positioning is required. Backlash limits the accuracy in applications with frequent changes of direction. A positional error the size of the amount of backlash may also be present when external forces, such as gravity, wind loads or mechanical vibration are acting on the drive. Perhaps most importantly, in many current systems freedom from backlash greatly simplifies servo design, enabling the designer to obtain the desired degree of control.

A few of the AvL Satellite Equipment and Services we offer include: Mobile Responder for vehicles, Business Connect for fixed/ rooftop satellite internet, Satellite Disaster Recovery, and Daily Rental for remote locations such as oil and gas rig sites.

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