[Scan-DC] Keyless Remotes To Cars in Waldorf Suddenly Useless

[Scan MD]

. . .

Some of the devices that have failed in Waldorf operate on a frequency of 315
megahertz. Another common keyless entry frequency is 302 MHz. Both of these
frequencies fall within a range licensed primarily for use by the military and
the federal government.  
. . .
"High-powered transmissions in this spectrum from presidential and military
aircraft are thought to be responsible for interference," said Mike Swanston, a
spokesman for the Consumer Electronics Association. "But the government doesn't
have to say what they're doing or how often."  
. . .
However, in Waldorf, along Old Washington Road, a 300-foot-tall AT&T tower
built in 1955 has several microwave dishes and a blinking white light affixed
to it. The primary function of the tower, known as a "point of presence," is to
coordinate local and long distance telephone service, as well as cell phone
service. But on certain days, said operations manager Philip Clark, the tower
also sends out a different signal.  

Clark would not specify the purpose of the signal or when it is used. Another
employee, who spoke on condition of anonymity, said the signal was related to
"government" work.   
. . .
"We don't have a schedule when we use that signal; it occurs when necessary,"
Clark said. "I think it will go on . . . but we can see about not using that
frequency."  

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