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Mark Spencer
MeshEnvy Advisory Board
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Vertical Antenna Comparison

· 7 min read
Mark Spencer
MeshEnvy Advisory Board

What is the best vertical antenna for a Mesh or LoRa radio?

From the beginning of my tenure with Mesh and LoRa, I have used the RAK4631/RAK19007 combination to homebrew my own hand-held and stand-alone Node devices. Since signal quality is important to LoRa, the antenna is something within my control that I can change to make the systems more effective. I found the plethora of antennas available daunting with wide ranges in advertised performance metrics and prices. I set out to determine which antenna provides the most bang for the buck.

Summary: The TX915-JKD-20, available from Amazon, proved to be the best performer at the best price. Figure 1 shows the tabular summary of the antennas tested.

Summary table of vertical antenna SWR, gain, and cost test results