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Beverly Hills California
Emergency Management |
2006 |
This
Workstation Audio Control/ALERT AM combo - easy for the
City to use - illustrates retrofitting an older station
with newer technology to get a superior result. |
Outdoor Electronics
and Antenna System
The phone company phone line from the telephone
switching room runs to the antenna control box. The
transmission antenna is centrally located in Beverly
Hills and covers about 94% of the City.
The Workstation
Audio Control Setup
The same workstation is used for making
voice recordings for transmission. The headset to the
left side is used to enter the voice segments. The
speaker is used to review the recorded messages after
recording. The voice software provided by Information
Station Specialists is shown on the right.
The Telephone
Switching Room
An interface unit (the gray box)
receives the cable from the workstation. The box
interfaces with the phone company phone line, and a
phone line is connected to the the antenna/transmitting
box at the antenna.
Transmission
Sequence/Schedule Closeup
After a voice recording is made with the
voice software (bottom image), it may be placed within
the transmission software.
Shown, are 8 voice segments that are transmitted in
sequence, repeatedly (1 through 8). More segments may be
added or segments can be deleted.
The voice recording is done on the same computer. |
Related Links
ALERT AM
Other Alert
Stations across
America
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© 1983-2022 • Information Station Specialists,
Inc. • All Rights Reserved
PO Box 51, Zeeland, Michigan, USA, 49464-0051, Phone
616.772.2300, Fax 616.772.2966,
Email the Editor
• • •
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Information Radio Stations is a generic term
synonymous with Travelers Information Stations (TIS), Highway
Advisory Radio Stations (HAR) / Highway Information Systems &
Low Power Radio Stations (LPR). Operation of the stations is
governed by FCC Part 90.242 Rules. A FCC license is required.
Information Radio Stations may be fixed or portable.
Subcomponents may include transmitter, antenna and ground
system, digital voice player, wattmeter, cabinet with
conventional or Corbin locks, lightning arrestors for RF, power
and telephone lines, coaxial cable. Most stations employ black
maximized antennas to discourage ice accumulation and security
measures to prevent unauthorized program access. Options include
synchronization, battery backup, solar power, remote programming
by local, network or telco, multi-station audio distribution via
RF or LAN / WAN or wireless network. |