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I found only limited documentation for this antenna on the internet. I have taken mechanical measurements myself and also recorded current and voltage data during tuning. All information provided without guarantee.
If you find any errors, I’d appreciate your feedback.
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| I took measurements on an antenna and created a model from them. | |
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Extended length Download ATAS-120A Long Model (.step) |
Total length 1614 mm |
| Retracted length Download ATAS-120A short Model (.step) |
Total length 1423 mm |
| Connector UHF male: PL-259 |  |
| Lower Part |  |
| Middle section with rubber sealing part and included Allen key |  |
| Tip |  |
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Current and voltage measurement: Between 5 and 8.5 volts, the antenna moves — it becomes shorter. Between 10 and 13.5 volts, it extends. In between, it doesn’t move. At the upper or lower limit, the motor can still be heard, and the current increases significantly. |
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