 |
|
|
Technical Specifications
The ALERT AM System operates according to Federal
Communications Commission Rules, Part 90.242. It achieves a maximum FCC
signal of 2.0 mV/m at 0.93 mile and operates within the 530-1700 kHz AM
frequency range. |
Overall system capabilities
include . . .
-
Predetermined
message playlists that key by external tone-alert receiver or
relay closure.
-
Internal capability
for 1,000 dynamic recorded messages and up to 3 hours of
recordable time.
-
Live broadcasts by telephone
handset, locally at the station or remotely via dial-up
telephone call in.
-
Touchtone telephone
control via landline or optional cell phone, on site or from
remote locations.
-
Automatic broadcast
of Emergency Alert System (EAS) and National Weather Service
(NWS) all-hazard alerts specific to targeted counties and event codes. When
alerts are over, the system can be set to automatically return
to normal programming.
-
Continuous
broadcasting during programming changes.
-
Effective range of
3 to 5 miles.
|
|
 |
|
Components include . . .
Transmitter
-
0-10-watt
operation, Class D, high efficiency output; internal components
rated to 3 times operating wattage, utilizing 2 output devices.
-
Federal
Communications Commission certified for Travelers Information
Service in the United States under Part 90.242., Certification
Number B7MTR-6000TIS-WB.
-
IPC-610 certified.
-
Manufactured in compliance with
Class-3 wavesolder standards.
-
Approved for US Military use.
-
Single-board design
with all RF, power and audio circuitry.
-
Integral LED
wattage and VU reference meters.
-
Remote broadcast
monitoring control.
-
Synthesized
frequency selection, compander-style audio processing.
-
Defeatable LED
operation to save power.
-
24V DC, fully
regulated power supply.
-
530 to 1700-kHz AM
frequency range.
-
Frequency stability
+/-20 Hz.
-
Continuously
adjustable power and audio modulation controls, externally
accessible on front panel.
-
Tunable series
filter on RF output.
-
Audio distortion: less than 1.2%,
100 Hz to 3 kHz.
-
Noise level: 70 dB below 95%
modulation level, 100 Hz to 3 kHz.
-
Modulation: 99%, -40 dB to +20 dB.
-
Temperature: -40 to +85 degrees
Celsius.
-
Humidity: 95% (non-condensing).
-
External audio,
power and synchronization inputs.
-
External PL-259 UHF
style RF output and 1/4-inch audio headphone output driven by
detector circuit to provide positive modulation indication.
-
Rack, panel or
shelf-mountable cabinet.
-
Slim-line design
(7.5 inches high by 17 inches wide by 1.5 inches deep); 4 pounds.
-
Mean time between
failure - in excess of 60 years.
-
Estimated product
life = in excess of 30 years.
Digital
Message Player
-
Voicemail-style natural voice
operation with 800-word/phrase capability; voice prompts and
status report on available recording time, sequences, security
codes, programming parameters and complete status of current
audio program, relay states, power.
-
Identical remote and local
control codes.
-
High quality (16-bit sampling
rate) recording process, yielding 5500-Hz dynamic range.
-
One thousand independent
broadcast messages that may be of any length. Each message may
be independently monitored and later erased, as desired.
-
Automatic message scheduling
by time, day, date. Internal time clock never requires setting,
keeping time even with total loss of power.
-
50-message playlists that
may contain hundreds of broadcast messages, up to three live
sources (each with independent timing control), command for up
to four external relays, other (nested) playlists and differing
output levels for each audio output. Playlists may be created,
recreated or appended locally or remotely.
-
Selection of active playlist
locally or remotely.
-
3 hours of recordable
time in dynamic flash memory.
-
Full control of
digital message player via appropriate
push-to-talk style two-way radio transceivers (customer
provides)
parallel to and with priority over telephone control. Two-way redundant control uses the same commands and
protocols as telephone control, providing the same voice
prompts and control options.
-
3 audio inputs for
separate and independent live program feeds, each with
independent audio level controls.
3 audio outputs with
audio levels settable locally, remotely or programmed to change
automatically.
1 to 9-digit security
access code, defeatable phone prompting, programmable locally or
remotely. User-settable number of retries and timeout period for
maximum security.
5-second and full-message
survey monitoring of all stored messages and playlists.
8 prioritized control
closures to trigger message sequences remotely.
Control closure
prioritization allows automatic interrupts for emergency
messages and automatic National Weather Service all-hazard radio
notifications (weather and EAS).
Includes prerecorded messages
by professional announcer for emergency advisory radio application --
ready for broadcast immediately.
Station identification
message broadcasts every half-hour.
Rack mountable, slim design,
1 RU in height.
National
Weather Service all-hazards alert Receiver
-
Specific Area Message Encoding (SAME) decoder for your selected counties,
2,000-county capability.
-
Receives all 7-channel, VHF, National Oceanic and Atmospheric Association (NOAA) weather frequencies and
all Emergency Alert System
(EAS) codes.
-
Field programmable and upgradeable.
-
Front-panel diagnostics and audio test port
that accepts recorded .wav files.
-
Detects up to 16 programmed
SAME county codes; user-adjustable; triggers program changes
based on NOAA-EAS/weather-encoded messages.
-
Stores most recent alert for local speaker replay.
-
600-ohm continuous output, manual and autoscan tuning; integral speaker/volume control.
-
Steel chassis; rack mountable.
-
External antenna, cut for the EAS/weather radio frequencies and mount with threaded UHF connector, balun and weatherproof gasket.
Antenna
and Groundplane System
-
Yard or isolated antenna-installation style
options. See also
Vertical
Profile Antenna option for use in tight spaces.
-
Aluminum construction, black finish color to discourage ice
buildup; UV resistant finish; architectural anodization process
+801.
-
Whip-style 15-25 feet long; maximum 2.0-inch OD,
tapering to 0.5 inch; stainless-steel tuning tip.
-
All hardware and mounts.
-
Patented, factory-assembled groundplane with 1,250
feet of
wire, 10 to 20-foot radius.
-
Wind rating: Antennas 1230 kHz and above 100 mph; 80 mph
with 1/4 radial ice; antennas 1220 kHz and below 80 mph; 50 mph
with 1/4 radial ice.
Lightning
Arrestor System, Enclosure and Groundbus
-
Provided in a weatherproof
NEMA4 cabinet, arrestor bonded to an aluminum panel that
supports the lightning grounding and groundplane connection
clamps.
-
Capacity of 50,000 amps surge.
-
Clamping speed of less than
2.5 nS.
-
2 UHF connectors.
-
Aluminum flange ground connection.
Standard
Indoor Security Cabinet for Yard
Antenna-Mount Styles
(See also optional
Outdoor Security Cabinet.)
-
Freestanding cabinet with window-doors, front and back, and keyed
locks.
-
Footprint with 4-day battery backup: 75.5
inches high by 25.5 inches
deep by 22 inches wide; 19-inch dual doors open 90 degrees front and back, window
on front door; 496 pounds, including rack-mounted components.
-
Footprint without battery backup and for satellite station locations: 48
inches high by 24 inches deep by 22.75 inches
wide; 19-inch dual doors open 90 degrees front and back, window on front
door; 170 pounds, including rack-mounted components.
-
Steel construction with black textured powder-coat finish, NEMA1
style.
-
Rack mounts, shelves, wiring harness and fixtures.
-
AC terminal block, high capacity AC surge arrestor, GFCI outlet.
-
High capacity telephone line surge arrestor.
Test
Equipment
- Wattmeter and dummy load for
antenna tuning and system diagnosis.
All
Necessary Wiring, Cabling, Connectors, Mounts and Hardware
optional 4-day Battery Backup
- 22A/24V DC regulated power
supply/battery charger.
- LED charge indicators. - Digital voltmeter/ammeter.
- Operational status indicators. - Breakers for AC input, battery output.
- Automatic low-voltage battery and load disconnect, thermal shutdown
and recovery, current-limiting and over-voltage protection. - 110 or 220 volts AC. - Accommodates redundant parallel module for auto switchover if main
unit fails. - Chassis size: rack mount, 2 rack units height.
- 4 sealed AGM batteries, 158 AH @ 24VDC,
yielding 4 days of operating time, fully recharges in 7 hours.
optional AC Uninterruptible power supply
- 1,000VA
- 640W battery backup.
- 6 outlets.
- Interactive UPS offers voltage regulation and battery
support plus complete AC surge suppression.
- 1U rack mount.
- Max load of 1,000VA for 10 minutes and a half-load of
500VA for 24 minutes.
- Full-time sine wave output.
- Maintains regulated 120V nominal output during brownouts
and overvoltages from 83 to 147V.
- Includes 6 UPS supported outlets.
- Multi-function audible alarms and set of 5 front panel
LEDs.
Optional Flashing
ALERT Sign System
Optional Outdoor
Security Cabinet for Isolated Antenna-Mount Style
-
NEMA-3R grade,
gasketed, with dual doors, aluminum frame and sheeting.
Removable rack cage.
-
Cabinet footprint:
66.5 inches high by 24.125 inches wide by 33 inches deep; 23-inch doors
open 90 degrees, front and back.
-
332/334 signal cabinet
style.
-
Dual internal locks and locking handles
on dual doors.
-
Fan/vent/filter, thermostatically controlled.
-
AC power service panel and ground bus.
-
Cabinet lights activate/deactivate with door
opening/closure.
Optional
Power Loss Notification Module
-
5 programmable notification
delay periods.
-
Instantaneous to 24 hours.
-
Internal battery backup.
-
Automatically dials up to 4
telephone numbers, including cell phones and pagers.
Optional
Broadcast Recording Services
Optional GPS Frequency
Stabilization
for Multi-Station Groupings
Optional
VP9000 Vertical Profile Antenna Syste
Optional Workstation Audio Control
Optional SignalcastIP Broadcast Management Software Package
|
|
The system operates on these
utilities
-
110/220-volt AC, single phase/50/60 Hz, less than 1
amp AC operating current, 4-amp maximum AC charging current
(20-amp breaker, nonGFI circuit).
-
Standard business telephone line (“central office”
type, shielded).
|
|
| This page
was last updated on
July 26, 2010. |
|