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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.
Below lists the types of SMA and RPSMA connectors available:
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.
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