Specifications

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Bird
®
Compact Ceramic TX Combiner
Model 611-70-Series
Bird
®
Digital Signal Booster
Model 613-8-Series
BTG, TX RX System brand UHF Ceramic TX Combiner combines up to 6
transmitters onto a single antenna. With a footprint that’s more than 50% smaller
than comparably performing 10” cavities. This optimizes valuable space for your
radio equipment, which in an era of escalating lease costs, makes it the perfect
solution for expansion. And because of our modular design, you can purchase
in single-channel increments. Plus, it delivers the kind of high performance and
minimum interference you’ve come to expect from Bird
®
.
Bird Technologies Group (BTG), TX RX Systems Digital Signal
Boosteroperates in the 700/800 MHz range with 1-60 programmable
digitalfi lters for both uplink and downlink. Filter bandwidth is
user programmablefrom 6.25 kHz to 15 MHz. Allstate-of-the-art
productcomponents are protected by a NEMA 4 style enclosure to meetthe
demands of the NFPA requirements. Intuitive web browser interfaceallows
booster to be easily configured for changing RF environments.
PROBLEMS
May need to minimize the number of antennas
at a communication site
Need to maintain or minimize additional
costs associated with space in a radio shack/
transmitter shelter
Need to minimize interference with competing
communication systems
And may lack the time or expertise to integrate
the solution into the overall radio system
SOLUTIONS
Can combine up to six transmitters onto a
single antenna which effi ciently utilizes valu-
able rack and shelter space
Our units provide valuable real estate in small
shelters where traditional T-Pass combiners are
too large
System-level signal analysis (including
interference mitigation) for each customer
application
Offer complete solutions from system design
through individualized confi gurations, installa-
tion support, and maintenance programs.
APPLICATIONS
Any communications system installation where
you need to reduce the number of antennas on
a tower.
Any communications system designed to
minimize tower size and maximize site space
Secured applications that require equipment
under lock and key
PROBLEMS
Noise and Interference that cause communication
problemsin a crowded spectrum.
Changes in RF environment.
System coverage is diffi cult toassess.
SOLUTIONS
- Digital booster can amplify severalindividual
channels or narrow bands offrequencies
(amplifying the desiredspectrum and
preventing interferenceto other users).
- An intuitive web browser user interfaceoffers
not only local but also remoteaccess
from any compatible PC on the net-work
maximizing fl exibility to easilyimplement
system changes such asoutput power, center
frequency, fi ltershape, and group delay.
- Built-in pilot signal capability. The1 kHz
FM modulated carrier allowssimple SINAD
qualifi cation testing.
APPLICATIONS
The Digital booster provides Public Safety
gradereliability and coverage in challenging
disadvantagedRF conditions.
Use as head-end booster for a system that
isdonored “off the air” in an RF congested area.
One digital booster can connect to any
numberofbroadband boosters (SBII or SBI).
Minimizes noise and interference potential in
urbanRF congested areas.
NAVAIR
TECHNOLOGIES