> Imagine just a place where a welding machine is running continuously. > Tesla lovers knows what that means as RF spectrum. Any Zigbee will be > unuseable there. Even OFDM will probably cough. According to a recent article 802.11 networks jam zigbee already Peter -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist