11.   Sedated lions are fitted with radio collars that emit a signal when a lion dies.

12.   The device emits a signal police computers can track.

13.   The transponder would have emitted a signal that could have been picked up by air traffic controllers in the area.

14.   The trick then is to get the nuclei to emit signals the microscope can detect.

15.   The use of cell phones that a passenger brings on board are banned because the phones might emit signals that could cause interference problems.

16.   These hidden fences consist of wire loops, buried an inch or two below the surface, that emit radio signals when connected to transmitters.

17.   They concluded that it emitted a signal on the same frequency as that of the airport at Maputo, the Mozambican capital.

18.   Unlike conventional phones, cordless phones emit a signal that can be picked up by listening devices like police scanners and baby monitors.

19.   A tracking beacon they are carrying has not emitted a signal for four days.

20.   Besides bearish fundamentals surrounding palm oil, numerous technical indicators have emitted sell signals including that of our triple-screen stochastics method of market trend forecasting.