John, Not sure what the max height is but the antennas are designed to radiate outward not upward so you would certainly expect the cell range to be less in a vertical direction.
Another consideration is the maximum speed at which mobile phones will work. It's different for each technology but for GSM is about 250Km/h. At height the effective speed to/from the base station will be lessened by the height and of course in a helicopter you can easily slow down or hover. The last consideration could be additional interference from neighbouring cells which might occur at height. Sorry there are no straightforward answers to your questions and to be honest perhaps the only way to be sure is to give it a go. Cheers, Karl. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of John Callan Sent: 16 July 2003 10:02 To: [EMAIL PROTECTED] Subject: [PRODIG] helicopters I need to send pix via an ibook and a mobile whilst flying in a helicopter. Does anyone know whether or not there is a celing above which a mobile will or will not work (2k feet for instance) ? If anyone has anyother tips about this task I am open to advice....... Thanks in advance callan =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
