2.4GHz Duck Antenna RP-SMA - Large

Need range? 2.4GHz Large Duck Antenna 5dBi with Reverse Polarized - SMA RF connector. Perfect for prototyping with our RF ICs. 50 ohm impedance.

This antenna mates nicely with the Reverse Polarized SMA Connector.

  • 0.5x7.7"

2.4GHz Duck Antenna RP-SMA - Large Product Help and Resources

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Connector Basics

January 18, 2013

Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.

Naming Conventions for the Different Types of SMA Connectors

Below lists the types of SMA and RPSMA connectors available:

  • SMA male - Center pin, inner threads
  • SMA female - center hole, outer threads


  • RP (reverse polarity) is named after its “thread gender” and has an opposite-gender pin
  • RP-SMA male - center hole, “male” inner threads
  • RP-SMA female - center pin, “female” outer threads"


For more information, try looking at our tutorial about SMA connectors [ https://www.sparkfun.com/tutorials/140 ].


Theoretically, higher dBi means that the antenna has better gain. However, it would depend on the design of the antennas and the XBee's output power to achieve the maximum tested range for the XBee. Some antennas can radiate in all directions while others radiate a signal in a narrow beam. If you are not within the plane that the antennas radiate, the connection will be unreliable and you might loose data.

We have not tested the two antenna's range with the XBees before so we are not entirely sure how well they perform against each other in real world conditions. However, there was a brief explanation in the this forum thread [ https://forum.sparkfun.com/viewtopic.php?t=15654 ] from a customer that used the high gain antenna in one of their projects.


Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • Kiko Lobo / about 7 years ago / 1

    Can this be used with the rockBlock Iridium Satellite modem?

  • mmalluck / about 13 years ago / 2

    The antenna I received has a male pin rather than the pictured female socket. It won't mate with the reverse polarity SMA connector for that reason. Weird.

  • Streety / about 10 years ago / 1

    Is this antenna suitable for a DX6I Spectrum transmitter?

  • Aristarco / about 11 years ago / 1

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

    • EDIT: Sorry about the confusion- I was looking at the wrong duck antenna. For a Cellular module, you'd want to use a quad-band antenna, not a 2.4 GHz.

  • Member #446988 / about 11 years ago / 1

    Anyone know if this would work with a Spektrum DM8 2.4ghz module for a Futaba 8U? I know the smaller antenna works, but it's always good to have a choice.

  • Ajahn / about 12 years ago / 1

    I also would like to know if this could be used outdoor in the rain and sun? (The radio of course would be protected) Does anyone know?

    • Assuming that all of your electronics are covered, it should work fine. Just make sure there is a water tight seal between the antenna and your electronics

  • Joe48 / about 13 years ago / 1

    Only to know if this antenna could work outdoor in a rainy place.

    Thanks, Joe

  • science9713 / about 13 years ago / 1

    Does anyone know if this will work with http://www.sparkfun.com/products/662? I am looking to add an antenna to an XBee through that cable.

  • Gyrfalcon / about 14 years ago / 1

    To estimate the effective radiated power (ERP) multiply the output of your radio by 3.2 This estimate does not take into account losses in the system from the cable, connector, or environment.

Customer Reviews

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