I encourage those of you with contacts in the Amateur microwave community to get the word out about RM-11715 and see what our members think. The proposed band plan for the commercial services leaves two segments vacant to protect the Amateur Radio operations from 10.350 to 10.370 GHz (which includes our Weak-Signal segment) and 10.450 to 10.500 (Amateur Satellite sub-band). Outside those two segments, Mimosa is asking for rules that allow EIRP's of 55dBW (half a Megawatt, if my math is correct) and point-to-many (isotropic) as well as point-to-point service. My immediate concerns are: - What is the bleed-over past the edges of nominal 20-MHz-wide channels in the proposed band plan and how might it impact our weak-signal band segment? - How might the high-EIRP omnidirectional commercial signals impact Amateur uses of the band outside the two protected segments mentioned above? - Would a contention-based protocol (Mimosa's proposed method of avoiding interference to primary and secondary users) provide effective protection to Amateur users of the paired analog / digital and experimental segments in our National Band Plan? (Contention-based protocol means listen before transmitting; an Amateur station would not be protected while in the receive mode, since the commercial station would not hear the weak signal being received by the Amateur and would not know when a quiet frequency is being monitored.) Would the proliferation of commercial Wi-Fi equipment on 10 GHz provide a source of inexpensive gear that could be useful to Amateurs? If so, would that benefit outweigh whatever interference potential exists in the proposal? 73, Marty N6VI