Variable Reeling System ( VRS )
UltraBeam introduces the VRS .
VRS features a unique and effective tracking system with variable mechanical pitch.
After having chosen the most reliable and superior mechanics ever used in a Dynamic Antenna System, Ultra Beam's VRS is the latest and exclusive mechanical and technical achievement of ultimate reliable Element Housing Unit (Motor Units) never seen in any Dynamic Antenna System before.
In order to convey the upmost reliability to its antenna, UltraBeam has always used best materials and best technical solutions intended for no-compromise operations particolarly in the case of a Dynamic Antenna System.
As a matter of fact, UltraBeam came on the market with the self-evident top hybrid machanics expecially designed to perform effectively the two most important operations:
1) Step-motor to drive the Copper-Beryllium tape;
2) Torsion-spring in the spools to perform a constant feeding and adherence of the Copper-
Beryllium tape around the two spools during the driving -in or -out of the antenna
elements.
Unlike the existing Element Housing Units (Step Motors), the VRS provides that the two operations mentioned above are performed by the step-motors alone. Among other advandages the following are the most important:
- Superior torque-wrench;
- Constant torque-wrench along the whole length-excursion of the Copper-Beryllium tape;
- Superior and smoother mechanical performances are now guaranteed by very high quality
needle-bearings used with all rotating parts;
- Uncomparable mechanical reliability of the whole motion-system;
- Less load and current absorbtion needed by the step-motors.
The main problem in defining the design of our revolutionary VRS has not been its gear-case and dimensions, but the system that compensates for the variable peripherical speed of the copper-beryllium spools.
As the step-motor is the only tractor,speed compensation is necessary to make the spools track in order to allow them to track impeccably in accordance with the length of Copper-Beryllium tape which inevitably varies as it is driven along the fiberglass element supporting tubes. In facts, as the Copper-Beryllium tape is collapsing or retracting, the diameter of the spool will diminish or increase respectively.
The most reliabilty-demanding Hams will welcome the VRS as the only device which will make UltraBeam not only the true reliable single-tower HF Dynamic Antenna System ever seen in the International Amateur Radio Service and not only. UltraBeam antennas will continue to be not only the best antennas for today's and future's Radioamateur but, primarily, it will be the only dynamic antenna without torsion-springs for many years to come.
The graph showm below shows the torque-wrench difference between existing system and the new one with the VRS :
.JPG)
The revolutionary Variable Reeling System (VRS) is only the latest step-up which makes UltraBeam antennas unquestionably the best among any Dynamic Antenna Sistems.
UltraBeam will always remain the only company which will continue to give priority to high quality and reliability