ALLIANCE TENNA-ROTOR PDF

Interchangeability of Alliance Tenna-Rotors. Wire Charts .. Wire Chart for Extra Long Runs of Cable Use of 2 or more Controls on One Rotor. The U Tenna-Rotor includes a control box. (FIG. 1), rotor (FIG. 2), mast clamp (FIG. 3) and one hardware bag containing U-bolts, terminal cover. GENERAL INFORMATION. The Alliance Tenna-RotorĀ® Model U is a fully auto- matic unit. The control knob is turned to the desired di- rection and the rotor .

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If you grew up in the era of rooftop television antennas, then there is a good chance you are familiar with tenja-rotor electromechanical antenna pointing systems that were often installed as well. There are a few companies AudiovoxChannel MasterRCA who still sell antenna rotators that are modern transistorized units with digital readouts.

Tenna-Rotor U98 Misc Alliance Manufacturing Co. Inc. ; Ohio,

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 alluance in a strong wind no brake or poor brake.

The seller found it in his father’s attic. I waited for many months for such an example to appear at a decent price because of wanting to tennarotor the entire system as originally supplied, so it was disappointing to have the cover missing.

I plan to make the best of the situation and exploit my local library’s MakerSpace facility’s 3D printer to make a replacement. A photo of the cover will be added here when it is available. Everything looked good except the grease in the rotator was hard caked and needed to be cleaned off and replaced, which Tennx-rotor did.

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As you can see in the photos, the cast aluminum parts are very robust. A worm drive is like a mechanical diode in that only a rotation of the worm input motor drive tenna-royor will cause the output shaft to rotate. Applying a torque to the output shaft, which is connected to the antenna, cannot cause the worm gear to rotate.

Tenna-Rotor Controller ATR Misc Alliance Manufacturing Co. I

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. Load bearing surfaces are simple bushings rather than ball bearings, but the shaft will turn so little in a typical lifetime of use that it shouldn’t matter. Mechanical drawings were located on the Norm’s Rotor Service website and Bougetoline has schematics, so I thank them for that. Lower quality copies are posted here in case they ever disappear from Norm’s Rotor Service a,liance.

Tenna-Rotor Controller ATR

Control and feedback is about as simple as it gets with a motor turning the antenna mast and a solenoid in the control box that advances the dial as the antenna rotates. Cams on both ends open henna-rotor close contacts as required. Alliancw rotator box motor rotation direction is determined by which set of field coils is energized by the control box; i.

Do you remember the signature ker-chunk, ker-chunk sound of that solenoid turning the controller dial? That was one of the reasons I wanted this old system, just to hear that sound again. 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 to see how well it worked there. Doing so wouldn’t get me the classic antenna-on-the-roof look I wanted, but it would keep the antenna and rotator unit safe from the weather and it would probably last the rest of my lifetime.

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My primary interest is being able to pick up radio stations since I rarely watch TV. 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.

Often time I would need to re-orient one or both sides of the dipole to get good pickup. Sometime I couldn’t get even relatively nearby stations no matter the orientation. A huge collection of my ‘Factoids’ can be accessed from my ‘ Kirt’s Cogitations ‘ table of contents.

Topical Smorgasbordanother manifestation of Factoids, are be found on these pages:. All pertain to topics that are related to the general engineering and science theme of RF Cafe.

Its primary purpose was to provide me with ready access to commonly needed a,liance and reference material while performing my work as an RF system and circuit design engineer. All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

Topical Smorgasbordanother manifestation of Factoids, are be found on these pages:

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