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Mohammad Hosein mhtajik at gmail.comit really depends on the type of operation and measurement you are gonna do but you must "engineer" a way not to TX regulated traffic anyway . a shield room is your first choice , engineering the patch antenna on the handset would be another , of course you always can ask your regulatory for temporary limited license to do research and the cost depends on how crowded your area is . On Thu, May 19, 2011 at 9:12 PM, Gianni Tedesco <gianni at scaramanga.co.uk>wrote: > On Thu, 2011-05-19 at 21:09 +0430, Mohammad Hosein wrote: > > most of the test systems are not built to be used for on-air > > operations . the ones that offer such features must be used in Shield > > rooms where no signal gets in or out . these rooms are expensive but > > usually tech universities have some rental hours for their shield and > > antenna rooms . its expensive as well , otherwise you are probably > > going to have some conflict with local regulatory sooner or later > > regards > > So how does it work "off-air"? I'll need a shielded cable and attach it > on to the antenna pads of the handset? > > The last thing I want is regulatory hassles. > > Thanks > > Gianni > > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20110519/868ff4a3/attachment.htm>