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omnidirectional antenna |
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omnidirectional antenna [¦äm·nə·di′rek·shən·əl an′ten·ə] (electromagnetism) An antenna that has an essentially circular radiation pattern in azimuth and a directional pattern in elevation. Also known as nondirectional antenna. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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It transmite data via Profibus, DeviceNet, and CAN protocols as well as the more conventional Mod-bus using an omnidirectional antenna to reach sensors over a mile away. Fixed-mount omnidirectional antennas costing between $100 and $130 can be used when anchored or moored. Distances of 20+ miles can be covered with the 900MHz SEM HL products using omnidirectional antennas with clear line of sight. |
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