11.   But if radar detectors are regularly picking up on a Stalker unit, McDonnell said the units can be reprogrammed to operate on a different frequency.

12.   But the aircraft were inexplicably on different frequencies.

13.   But the devices were inexplicably on different frequencies, the investigation found.

14.   But, apparently, the baseball gods are on a different frequency than hay bales and the first evening star.

15.   Foreign shortwave programs are beamed to the United States at different frequencies at different times of the day.

16.   Fourteen registered bidders will bid on the different frequencies the government is auctioning for as long as they continue to top previous offers.

17.   Harold Cook, the former executive director, said he left because he and Chairwoman Molly Beth Malcolm operated on different frequencies.

18.   He used the image that could not communicate because their radios operated on different frequencies.

19.   Humpbacks sing over different frequency ranges depending on the time of year, says Eduardo Mercado of Rutgers University in New Jersey.

20.   Icelanders may not possess the full spectrum of human genetic weaknesses, or they may have them with different frequency.