900/1800MHz Dual Frequency Duck Antenna - RP-SMA

900/1800 MHz Duck Antenna 2dBi with regular RP-SMA RF connector. Perfect for use with the XBee 900MHz units. 50 ohm impedance. 105mm long.

Be sure to pick the antenna with the right connector. Almost all 2.4GHz and 915MHz antennas need to be RP-SMA. See our SMA Connector tutorial for a good visual aid.


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  • Wiletee / about 13 years ago / 2

    Looks like these would be good for modifying and replacing the antenna on a home WiFi router.

    • CJG / about 13 years ago / 3

      I dont think any home wifi runs on 900 /1800 .. 2.4 or 5 ghz is what you would want for your home router.

  • Member #596910 / about 10 years ago / 1

    Does anybody know when these will be back in or where else i can get one?

  • Member #487907 / about 11 years ago / 1

    How far can a signal reach with this antenna (in meters)?

    • M-Short / about 10 years ago / 2

      That depends more on the device that is sending the signal and how much power it can output than the antenna.

  • Aristarco / about 11 years ago / 1

    Does anyone know if this antenna could be used for GSM cellular applications? Greetings.

  • TimZaman / about 13 years ago / 1

    i received an antenna that was twice as long as this one and had a sticker with 900 on it. is that correct? this seems like a small one?

    • CF / about 13 years ago / 1

      I can't say if it is correct or not, but it sounds like you have a 900 MHz antenna only. (Better if you are using it for just 900 MHz anyway, the 900/1800 probably has less gain in the 900MHz range.)
      If yours is roughly 10" long, that would make it a 3/4 wave 900 MHz antenna, but it might be a 5/8 wave.

  • Technick / about 12 years ago / 0

    So can these antennas be used with any XBee with a RP-SMA connector?

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