|UHF Wireless||Network VoIP|
The master transmitter is the heart of your EMN system. It transmits emergency messages, live audio and time to all of your secondary components.
The master clock obtains time from the computer network or NTP Time Server located on your campus computer network. Included is an FCC Approved transceiver, alarm schedule and control software, UPS battery backup, RF power meter, and rack mount cabinet.
|No master transmitter is required for VoIP|
UHF Wireless Masters Continued
Available in 5, 25, 70, 100 & 200 Watt configurations.
The master transmitter also controls:
- Wireless indoor speakers
- Wireless indoor message displays
- Wireless outdoor speakers
- Wireless strobes
- Wireless outdoor broadcast systems (OBS)
- Wireless repeaters
- Wired indoor speakers
- Wireless fire control panel receivers
- Wireless PA receivers
- Wireless Analog & Digital Clocks
Available in 5, 25, 70, 100 and 200 watt power configurations for wide area coverage. Gain antennas are available to boost the effective radiated power to 300 watts. 100-260 volts AC, 50 -60 cycles.
BRG highly recommends that you purchase a backup transmitter to place in a second location on your campus in case of the main transmitter is disabled in a disaster.
- Each master transmitter comes standard with NTP Time synchronization. GPS is available as an option
- Synchronizes time across your campus
- Transmits time, audio & text messages to all secondary devices
- Automatically adjust time for DST
- UPS battery backup
- long duration battery backup
Site surveys are performed by our sales staff prior to purchase to:
- Determine the Wattage of transmitter needed to cover your facility or campus
- Identify problem signal areas on campus
- Monitor radio frequencies in the area for traffic and conflicting signals
- Suggest secondary devices that will fit your needs and budget
- Recommend locations for placing the primary and secondary master transmitters
All master transmitters are installed and tested by factory authorized installers to make sure your system is operating at peak performance.
Each system is backed by a 12 month warranty. Extended warranties are available, contact BRG for details.
Each BRG System includes the following devices:
- Mast Antenna
- 50' of LMR 400 low-loss antenna cable
- Non-penetrating antenna roof mount
- Tekk XT-40 two way monitoring radio
- Wireless Signal Monitor
- Watt meter to measuring effective radiated power (ERP)
- Telephone control interface
- BRG Wireless EMN Software
- Ethernet network interface
- UPS Battery Backup
BRG’s Master Transmitters operate on the UHF Business Band Frequencies of 462-464 MHz and Military Band Frequencies of 411-415 MHz UHF. UHF was selected because of it is the optimum band for indoor radio transmission. The UHF signal is ideally suited for this application because of it’s short, two foot wave length, travels easily down elevator shafts, along hallways, through windows and through metal stud walls to give you maximum coverage. This allows the signal to reach most points within a building, facility or campus. The wave length of a lower frequency signal is too long to travel easily throughout a building. This is why WWAV/Atomic Clocks don’t work well in commercial buildings. When using a higher frequency than 464 MHz, the interior walls of your building(s) become opaque to the radio signal, and again signal propagation is reduced.
BRG Precision Products provides a variety of frequency choices for commercial and military applications. We offer fourteen commercial business band and five military band frequencies to avoid any trouble with competing traffic on any one frequency.
US Commercial Frequencies:
U.S. Government frequencies:
Canadian Frequencies Industry Canada will assign a frequency prior to installation of the equipment.
EMN Control PC
The BRG EMN-TTS Control Computer is the command station that controls the master transmitter(s) in your system. It provides the ability to activate a pre-recorded message, a Text-to-Speech (TTS) message, a live audio message or an message that is provided by an emergency texting RSS Feed. The control PC also allows you to dial into an analog phone line and activate a pre-recorded message or make a live audio message from any touch-tone or cellular telephone.
At least one EMN control PC is required with each system. To learn more, click here.
Part Number: EMNTTSPC
Because the BRG EMN System operates on a shared Commercial UHF FM frequency, the FCC requires that our customers purchase a License for each transmitter in each installed location. This includes any signal repeaters that might be required for total campus coverage.
BRG works closely with you to get the necessary information required. Then we submit the paperwork for you.
EMN System Accessories
(Each EMN Transmitter comes with the following accessories.)
Radio Signal Monitoring
The radio signal monitor is a two way radio that is used to monitor the master transmitters radio transmissions. It allows you to listen to the signal strength and check the signal quality in poor signal areas like floors below grade.
The radio is programmed at the factory to work on the UHF radio frequencies that you are using at your campus(s).
The two way radio is only used to monitor the Transmitter signal, it is not used for broadcasting audio over our wireless speakers or OBS Systems.
One of these is included with the purchase of each EMN System. Additional WTMs can be purchased as an option to your system
Part Number: SIGSTR .
Wireless Master Transmitter Monitor
The WTM is designed to listen for the master transmitter. It automatically logs all transmissions the master transmitter makes during a 24 hour period.
The WTM is installed at the Master Control PC and will provide you with a audio warning and pop-up window if the master transmitter fails to transmit within a 60 second period. This provides you time you to switch from your primary to secondary master transmitter so you are ready to transmit if an emergency arises.
One WTM is included with the purchase of each EMN Master Transmitter. Additional WTMs can be purchased as an option to your system.
Part Number: WTM
When there are areas of your campus where UHF signals can’t reach, BRG has the answer. With the addition of a 5 or 25 Watt repeater BRG will capture the signal and rebroadcast it in the low signal areas, providing complete coverage even in hard to reach basement areas.This repeaters are housed in protective housings that are place in the low signal area. A receiver is then placed in a location that has an excellent signal. The receiver and the repeater are then connected together with CAT5 wiring.When an emergency announcement is activated, the receiver immediately sends the signal to the repeater. The repeater transmits the emergency announcement through it’s 5 or 25 watt transmitter to all secondary devices that are located in the low signal area. Repeaters require an additional FCC License.
5 Watt Indoor Repeater
5 Watt Outdoor Repeater
25 Watt Indoor Repeater
25 Watt Outdoor Repeater
GSA Antenna Option
High Sensitivity GPS Receiver
GPS receivers receive time packets from orbiting satellites to provide accurate, legal time for your campus.
- Full navigation accuracy provided by Standard Positioning Service (SPS)
- Supports high sensitivity for very weak signal acquisition and tracking
- Integrated powerful CPU, base band and RF front-end hardware in a SOC (System On Chip) design reduces the space and power consumption is state of the art
- Advanced IC technology reduces overall receiver cost
- The receiver can receive up to 12 satellites simultaneously
- Fast TTFF for cold start, warm start and hot start
- High performance firmware allows excellent positioning speed
- Includes battery backup to maintain internal clock for fast acquisition
- RS422 long distance serial communications protocol. Communications cable may be up to 4,000 feet long. BRG provides 100 ft. of cable with the antenna
Information Central (Click on the information below to download informational PDF's)
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