KAMPALA, Sept 11 (Reuters) - The Uganda shilling weakened on Tuesday on the back of strong demand for dollars from banks beefing up their hard currency positions and merchandise importers. At 1118 GMT, commercial banks quoted the shilling at 3,795/3,805, weaker than Monday's close of 3,780/3,790. UGX Spot Rate..... Ugandan Shilling Money Guide.... Calculated Cross Rates.......... Deposits..................... Deposits & Forwards............. Uganda Equities Guide....... Uganda All Share Index........ Shilling background ..... Ugandan Debt Guide............ All Uganda Bonds............. Uganda T-Bills.............. Uganda Benchmark............. Central Bank ................ Ugandan Contributor Index.... Uganda Coffee Prices....... (Reporting by Elias Biryabarema Editing by Duncan Miriri)