ALLIANCE TENNA-ROTOR PDF

There are a few companies Audiovox , Channel Master , RCA who still sell antenna rotators that are modern transistorized units with digital readouts. Customer reviews of the new units reveal dissatisfaction with the weakness of the rotator unit that mounts on the antenna mast, and the inability of it to prevent the antenna from being rotated in a strong wind no brake or poor brake. I waited for many months for such an example to appear at a decent price because of wanting to document the entire system as originally supplied, so it was disappointing to have the cover missing. A photo of the cover will be added here when it is available.

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It is possible for the wind or some other force to prevent the antenna shaft from turning as the worm gear tries to turn, which would strain or stall the motor, but it cannot be forced forward or backward.

All pertain to topics that are related to the general engineering and science theme of RF Cafe. When I first began planning an antenna installation, I was going to put it on the roof like in the old days, but I decided I would try it in the garage attic first alliane see how well it worked there.

Everything looked good except the grease in the rotator was hard caked and needed to be cleaned off and replaced, which I did. Customer reviews of the new units reveal dissatisfaction with the weakness of the rotator unit that mounts on the antenna mast, and the inability of it to prevent the antenna from being rotated in a strong wind no brake or poor brake.

Control and feedback is about as simple as it gets with a motor turning tsnna-rotor antenna mast and a solenoid in the control box that advances the dial as the antenna rotates. A photo of the cover will be added here when it is available. The rotator box motor rotation direction is determined by which set of field coils is energized by the control box; i.

That was one of the reasons I wanted this old system, just to hear that sound again. Applying a torque to the output shaft, which is connected to the antenna, cannot cause the worm gear to rotate. Tenna-rotro are a few companies AudiovoxChannel MasterRCA who still sell antenna rotators that are modern transistorized units with digital readouts.

My primary interest is being able to pick up radio stations since I rarely watch TV. Alliance Rotor I waited for many months for such an example to appear at a decent price because of wanting to document the entire system as originally supplied, so it was disappointing to have the cover missing. If you grew up in the era of rooftop television antennas, then there is a good chance you are familiar with the electromechanical antenna pointing systems that were often installed as well.

Topical Smorgasbordanother manifestation of Factoids, are be found on these pages: Do you remember the signature ker-chunk, ker-chunk sound of that solenoid turning the controller dial? A worm drive is like a mechanical diode in tenna-fotor only a rotation of the worm input motor drive shaft will cause the output shaft to rotate. Topical Smorgasbordanother manifestation of Factoids, are be found on these pages:. A half-wave folded dipole has been used for many years, but because of where my house is located reception quality varies throughout the year and according to the weather.

Cams on both ends open and close contacts as required. Often time I would need to re-orient one or both sides of the dipole to get good pickup. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer.

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anyone familiar with Alliance Tenna rotors?

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