The UHF remote sends ultra-high frequency radio signals to a UHF antenna connected to the back panel of UHF compatible receivers. With UHF compatible receivers, the signals will travel through solid objects and allow to control the receiver from another room, or even from another floor in the building, to a maximum of 100 feet away from the receiver. To check if the receiver is UHF compatible, look for the UHF Remote Antenna connection on the back panel of the receiver. The UHF remotes have a UHF logo on the bottom. All IR/UHF remotes also send IR commands in SAT mode and only IR commands in all other modes.
The UHF antenna must be attached to the receiver back panel UHF Remote Antenna connection in order to use the UHF remote control. Because the UHF remote operates from such a long range, the receiver may respond to signals from other nearby remote controls. To handle this problem, see the Addressing to the Receiver procedure. Because the UHF antenna is sensitive, it may pick up other UHF signals, interfering with the operation of the remote.