ACM0008F1V1-1

ACM0008F1V1-1

SAME BAND COMBINER, 900 TYPE 1 PASSIVE

The Kaelus ACM0008 is a passive combiner used to combine two 900MHz base stations to a single feeder with minimal downlink (TX) Insertion loss. Normally used in conjunction with the Kaelus 900MHz TMA this combiner saves the operator capital and operational expenditure by minimising the number of feeders required.

FEATURES

  • Combines two 900MHz base stations onto a single feeder with low downlink insertion losses
  • Allows the re-use of the existing antenna, 900 TMA's and feeder hardware
  • Suitable for indoor or outdoor use, suited for masthead sites with TMA/MHAs
  • Variable DC/AISG paths configured in the factory for antenna & TMA control
  • RX div ports protected against damage from erroneous Tx connection

technical specifications
Port Name Downlink (BTS 1 TXB) Uplink (BTS RX)
Passband 935 - 960MHz 890 - 915MHz
Bandwidth 25MHz
Insertion loss 0.45dB maximum at band edge, 0.35dB typical 5dB maximum at band edge, 4.2dB typical at mid-band
Return loss 18dB minimum
EVM 3 % maximum across 4MHz
Group delay variation 30ns maximum / 20ns maximum across 4MHz 80ns maximum / 15ns maximum across 4MHz
Absolute group delay 70ns maximum / 50ns typical 200ns maximum / 130ns typical
Maximum input power 200W (average) / 1.6kW (PEP) N/A
Intermodulation products -150dBc maximum all ports with 2 x 20W carriers
Attenuation ANT to RX DIV (BTS1 or BTS2) 40dB minimum TX band
electrical
Impedance 50Ohms
isolation (ant1 and ant2 terminated)
  TX BAND RX BAND
BTS2 MAIN to BTS1 RX DIV 35dB minimum 35dB minimum
BTS1 RX DIV to BTS2 MAIN 35dB minimum 20dB minimum
BTS2 MAIN to BTS1 RX DIV 35dB minimum 35dB minimum
BTS2 MAIN to BTS1 MAIN 35dB minimum 35dB minimum
BTS1 RX DIV to BTS2 RX DIV 35dB minimum 35dB minimum
BTS1 RX DIV to BTS1 MAIN 35dB minimum 35dB minimum
BTS1 MAIN to BTS2 RX DIV 35dB minimum 35dB minimum
BTS2 RX DIV to BTS1 MAIN 35dB minimum 20dB minimum
dc / aisg
See ordering information below, other configurations available on request from Kaelus.
Passband 0 - 3MHz
Insertion loss 1.0 dB maximum
Return loss 12dB minimum
Input voltage range ± 33V maximum
DC current rating 2A maximum
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range -40ºC to +65ºC | -40ºF to +149ºF
Ingress protection IP67
Altitude 2000m maximum
Lightning protection RF: ±5kA maximum (8/20us), IEC61312-1
mechanical
Dimensions H x D x W 250 x 300 x 86mm | 9.8 x 11.8 x 3.38in
Weight 10.5kg | 23.14lbs estimated
Finish Painted, light grey (RAL7035)
Connectors DIN 7-16 (F) x 6
Mounting Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles
ordering information
Part Number Description
ACM0008F1V1-1 Same band combiner, 900 type 1 passive
Downlink (TX) passband 935 - 960MHz
Uplink (RX) passband 890 - 915MHz
DC pass ANT1 to BTS1 RX Div, ANT2 to BTS1 Main
ACM0008F2V1-1 Same band combiner, 900 type 1 passive
Downlink (TX) passband 925 - 950MHz
Uplink (RX) passband 880 - 905MHz
DC pass ANT1 to BTS1 RX Div, ANT2 to BTS1 Main
system diagram
System Diagram
mechanical block diagram
MECHANICAL BLOCK DIAGRAM

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