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Home / Cellular Interference / Articles High-tech innovations hampering police
calls Jack Leonard
11/09/2000 The Dallas Morning
News 3A Copyright 2000 Gale Group Inc. All rights reserved. COPYRIGHT 2000
The Dallas Morning News, L.P.
The police radio used to be the ultimate
piece of squad-car technology, as dependable to a cop in a jam as the trusty
black-and-white cruiser itself.
But that was before sprawling office towers
and parking structures started blocking radio waves. And before wireless phones
- with their crystal clear reception - increased expectations for two-way
communication, while at the same time stealing frequencies from radio users.
Now, it seems, in this era of technological
innovation, the crackling police radio is starting to show its age.
Police and fire agencies across the country
are using antiquated equipment developed in the 1950s and '60s that has failed
in major emergencies.
That problem is prompting departments to
spend hundreds of millions on cutting-edge radio networks, only to encounter
many new - and sometimes dangerous - breakdowns.
In one extreme case in Atlanta, a new
police radio network failed to pick up an officer's call for help just moments
before a rifle-wielding suspect wounded her and killed her partner. In Delaware,
firefighters resorted to shouting out of windows because their $50 million
communications system didn't work inside high-rise buildings.
In Los Angeles, police use a 21-year-old
network so out of date that manufacturers have stopped making parts for it. For
years, cash-strapped technicians had to cannibalize parts from some hand-held
radios to fix others. The problems reached a crisis during the 1992 riots, when
officers in the field faced a critical shortage of portable radios.
The city is installing a new system.
Orange County, Calif., began rolling out an
$80 million network this year and experienced its own static - including several
incidents that police say put their safety at risk. This summer, officers
complained that new radios failed to pick up critical information from
dispatchers during a building search for a murder suspect.
"I think we've gone backward instead of
forward," said Irvine, Calif., police Officer Jeff van der Sluys Veer. Some of
his colleagues now rely on their own cellular phones and pagers, he said,
"anything they can to maintain communications."
The problem is part physics and part
finances.
The design of police radio systems makes it
difficult for signals to penetrate the heavy steel and concrete of office
buildings, parking garages, shopping malls and hospitals. As these structures
sprout, they present major obstacles for officers trying to keep in touch with
each other.
Wireless phones also operate via radio
waves, but engineering experts say they often provide far better service than
police radios because the telephone companies place more radio towers in highly
developed areas. Local governments simply don't have the money to match that
kind of coverage - even with state-of-the-art systems.
"Our society has become such a
technological monster that ... public safety has just been overshadowed," said
Alan Burton, an Oregon-based consultant on emergency communications.
Police and fire departments were once
leaders in communications technology. In the 1920s, Detroit police unveiled the
country's first one-way car radio. The development was quickly followed by
two-way police radios. And soon, officers came to view their radios as an
indispensable part of their crime-fighting arsenal.
Until the early 1990s, most police radios
operated at frequencies that were 400 megahertz or less - the same frequencies
used by the burgeoning wireless communications industry. The explosion of cell
phones and other technology sparked a modern-day "land rush" for radio
frequencies.
Police and fire departments found
themselves without space to add radio channels even though their populations -
and emergency call volumes - were rising. As calls flooded dispatch centers,
officers had to wait in line to make a call - often delaying response times by
crucial minutes.
The biggest complaint is that the radios
don't always work in many big structures and throughout entire patrol districts.
Experts point out that radio waves on higher frequencies can't travel as far as
those on the low frequencies previously used. To compensate, public safety
agencies must add radio towers, which is often cost prohibitive.
Additionally, the technology is vulnerable
to interference from wireless phone transmissions. Technicians have
discovered that some cellular phone sites reduce police radios to static.
"Dead spots" are reported elsewhere,
including Portland, Ore., where a new 800-megahertz radio network was
touted as state-of-the-art technology when it was installed in 1994.
In July, the Oregon OSHA fined the city
$3,600 after determining that the radio system was already overtaxed and that
failures sometimes prevent police officers from calling for help.
"Officers are disgusted," said Sgt. Lonn C.
Sweeney. |