2.4G WILL work IF the antennas can "see" each other. If water waves are too high possibly interruptions could happen. Using lower frequencies such as 70cm (433 MHz) would give a better security. Peter DG4EK ----- Original Message ----- From: "VULCAN20" To: "pic microcontroller discussion list" Sent: Tuesday, January 24, 2006 10:02 PM Subject: [EE] 2.4 GHz over water??? >I am not knowledgeable with radio waves. I was thinking of a project > using the Maxstream xbee Zigbee pro radios. I need to send data from a > small rc boat to a larger full size boat about 1000 M distance. > The big boat will have the ant about 3 to 4 M above water. The small > boat I would like to have as low as possible. I asked an old ham radio > person about it and he said It would not work due to freq. and height > above water. > I e-mail Maxstream and all they would comment that it depended upon the > height above water and would not suggest min height required. > Any thoughts on this? > > Any other radios that could be used? Requirements: about 1000M over > freshwater, wave height less then 1M., > the large boat would send signal to start data collection. Then when > small boat had data it would send it back to larger boat. > > Thank you very much? > John > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist