Bird Technologies 4-FFF-99104-XY User Manual
TX RX Systems Brand
Airline Junction Combiners
44-83B, 44-86A, 44-83E & 44-96 Series
BTG, TX RX Systems brand Airline Junction Combiner Series Can be configured anywhere between
2 to 6 channels. The unit provides high performance specifications with narrow adjacent channel
spacing and low insertion loss. Models are available to support 764-869 MHz and 926-960 MHz.
PROBLEMS } SOLUTIONS
Site Channels are mixed in both 700 and 800 MHz
} System can mix and match 700 and 800 MHz channels.
Expansion Potential
} Constant interconnect cable length for entire frequency
range provides ease of eld expansion.
Space constraints in rack
} Square cavity system is 19” rack mountable for space
eciency.
APPLICATIONS
The 700/800 Airline Junction Combiner is designed to mix
and match both 700 and 800 MHz channels and can
accommodate anywhere between 2 and 6 channels per
antenna.
The square cavity design is ideal for 19” rack mounting
configurations where space is limited.
Airline Junction Combiner
44-83B, 44-86A, 44-83E & 44-96 Series
SPECIFICATIONS
Frequency Range 700/800 MHz
900 MHz
IL per channel 700/800 MHz
900 MHz
Minimum channel seperation 250 kHz
Maximum power per channel 100 Watts
Impedance 50 ohms
Isolation TX-TX 900 MHz 45 dB Min
Isolation Antenna TX 900 MHz 35 dB Min
Return Loss (VSWR) 20 dB (1.22:1)
Cavity Elec. Length 3/4 wavelength
Temperature Range, °C -30 to +60
Cavity Size 5.83” square
Number of Cavities Up to 6
Connectors N
Dimensions 17.5” H x 19” W x 22” D
International Certs. CE, RoHS
764-869 MHz
926-960 MHz
2.0~5.0 dB typical, depending on freq separation
2.2~4.9 dB typical, depending on freq separation
700/800 MHz & 900 MHz AIRLINE JUNCTION COMBINER MODEL NOMENCLATURE
700/800 MHz LOSS (dB) VS. NO. OF CHANNELS
Tx-Tx
Separation
1 MHz 1.25 2.0 2.4 2.4 2.4 2.6
500 kHz 1.80 2.8 3.0 3.0 3.2 3.4
250 kHz 2.80 3.5 3.9 4.3 4.7 5.0
Cavity
Loss
2 3 4 5 6
900 MHz LOSS (dB) VS. NO. OF CHANNELS
Tx-Tx
Separation
1 MHz 1.25 2.2 2.3 2.4 2.4 2.5
500 kHz 1.80 2.8 3.0 3.2 3.4 3.5
250 kHz 2.80 3.9 4.3 4.5 4.7 4.9
Cavity
Loss
2 3 4 5 6
44 - __ - _____ - __ __
Examples:
44-83B-99104-30: three 700 MHz channels
44-86A-99104-04: four 800 MHz channels
44-83E-99104-23: two 700 MHz channels & three 800 MHz channels
Product
Category
44 = Airline
Junction Combiner
*Note: X & Y Can not exceed 6 channels total.
Band Product ID # of 700 MHz
83B = 764-806 MHz
86A = 806-869 MHz
83E = 764-869 MHz
99104 Up to 6 Up to 6
44 - __ - _____ - __
Examples:
44-96-99104-4: four 900 MHz channels
Product
Category
44 = Airline
Junction Combiner
Band Product ID # of 900 MHz
96 = 926-960 MHz 99104 Up to 6
Channels
Channels
# of 800 MHz
Channels
30303 Aurora Rd. Solon, OH 44139 866.695.4569 www.bird-technologies.com
Combiner_AirlineJunc-44f99104XY & 44-96-99104-#-11262014
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