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Wireless Tests - More MIMO comparisons

But the real question on the minds of many readers is how RangeMax stacks up against other current MIMO offerings. To probe this, I gathered data from my previous tests of Belkin's Pre-N and Linksys' SRX products (True MIMO based), plotted it along with data from two different RangeMax runs and threw in a Super-G+XR+AR run done with NETGEAR's Double 108 products for good measure. Figures 19 and 20 tell the tale.

Indoor MIMO throughput comparison - Downlink

Figure 19: Indoor MIMO throughput comparison - Downlink
(click on image to enlarge)

The downlink graph (Figure 19) shows that all MIMO methods handily beat out normal Super-G, even with XR and AR enabled. But I find it hard to declare a definite winner of the MIMO pack, with all the criss-crossing going on. If you stare long enough at the enlarged plot, though, you might say that the Linksys SRX had a slight edge.

Indoor MIMO throughput comparison - Uplink

Figure 20: Indoor MIMO throughput comparison - Uplink
(click on image to enlarge)

Figure 20 is a bit more interesting in that it doesn't show as clear an advantage of MIMO over regular old Super-G under best-case conditions (Location 1). And it again shows RangeMax (in plain Auto108 mode) holding its own among the True MIMO competition.

I didn't do as much outdoor testing of RangeMax as I did for True MIMO products and didn't test to see which ultimately went farther. But Figures 21 and 22 show a definite pattern of results for the testing that I did perform.

Outdoor MIMO throughput comparison - Downlink

Figure 21: Outdoor MIMO throughput comparison - Downlink
(click on image to enlarge)

You don't see any Linksys SRX results because I didn't do any outdoor testing on it. But the conclusions I draw from this data are:

  • RangeMax provides a definite improvement over normal Super-G as distance increases (signal levels drop)
  • XR helps vs. hurts performance as distance increases
  • True MIMO maintained throughput over the distance tested better than RangeMax

Outdoor MIMO throughput comparison - Uplink

Figure 22: Outdoor MIMO throughput comparison - Uplink
(click on image to enlarge)

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