3-D Sherwood!

Due to questions I’ve received during club talks to visualize all three dimensions of price, performance and satisfaction in HF rigs, I’ve assembled a 3D data cube (scatter plot) with these three measures together. This includes the composite Sherwood Receive Tests (SPI), price at market entry, and the eHam rating. The data cube points are color-shaded to reflect year-of-entry into the marketplace. These data are updated with Rob NC0B’s March 5, 2022 test data. A few (older) rigs without eHam ratings were removed.

Go to this link over at FoxMikeHotel.com to take a look. I may do some additional analyses in the near future so stay tuned if you’re interested in Rob’s work and related data.

Frank Howell, K4FMH, is a regular contributor to AmateurRadio.com and writes from Mississippi, USA. Contact him at [email protected].

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