When it comes to wireless broadband, WiMAX is one technology that has some bad juju. You have two of its premier proponents in the U.S., Clearwire and Sprint, riding leaky boats in rocky financial seas. You have LTE as a potential competitor, thanks to backing from AT&T and Verizon. And now there is a new report out that says WiMAX causes interference with satellite communications transmitted in the C band frequency.
Of course one has to take the report with a pinch of salt since it has been released by Florida-based Satellite Users Interference Reduction Group (SUIRG), which has conflicts up the wazoo. They conducted tests to “measure interference levels generated by fixed WiMAX transmissions into an FSS satellite receiving station.” The tests found that the “WiMAX transmit signal could cause significant problems to a satellite digital signal well in excess of 12 km distance.”
A sharp reader points out that this is a problem with 3.5 Ghz fixed wireless/WiMAX solutions, which is different from the spectrum Sprint & Clearwire are using/planning to use. 3.5 Ghz is very popular for WiMAX in overseas markets.
Any readers who are experts in satellite communications, and want to read the report, we would love to hear from you as to what you make of this whole issue.