MI-171 | KA-1000

TWIN TMA AWS/1900 DUAL BAND WITH LOW BAND BYPASS

Designed to be deployed in co-located AWS, 1900 and low band systems with wideband antennas, this Tower Mounted Amplifier provides internal duplexing in all three bands with uplink gain in the high bands. A passive Tx/Rx path is provided to a low-band antenna port, thereby saving capital expenditure and tower leasing fees.

Microdata Telecom rebranding to Kaelus!
Microdata Telecom and Kaelus have had combined operations since Oct 2019 when Microdata acquired Kaelus. We strongly believe that by operating under one global brand we will clarify our strengthened position in the telecom market and from January 18th 2021, we are unifying the brands to Kaelus. The MI-171 and the KA-1000 are the same product but to ease the transition for our customers both Kaelus and Microdata part numbers will be maintained.

MI-171: part number under Microdata brand
KA-1000: part number under Kaelus brand.

FEATURES

  • Improved base station sensitivity through gain in the AWS and 1900 uplink bands
  • Highly integrated unit available as a twin unit (4 antenna ports) or as a quad unit (8 antenna ports) to suit 4x4 or 8x8 MIMO systems
  • Excellent noise figure performance
  • Internal duplexing of 617-894MHz signals to be passed to additional ANT ports
  • Internal duplexing of AWS and 1900 bands
  • AISG2.0 compatible
  • Compact, low weight

technical specifications
Band Name PCS AWS
downlink (tx) path
Passband 1930 - 1990 MHz 2110 - 2200 MHz
Insertion loss 0.5dB typical 0.3dB typical
Return loss 18dB
Maximum input power 200W (average) / 2000W (PEP)
Intermodulation products -165dBc in RX band at ANT
uplink (rx) path
Passband 1850 - 1910 MHz 1695 - 1780 MHz
Gain 12dB +- 1.0 dB
Return loss 16dB
Bypass return loss 12dB minimum
Bypass loss 2.2dB typical 1.5dB typical
Noise figure 1.3dB typical 1.1dB typical
Output IP3 +25dBm typical
Maximum input power with no damage +12dBm
low band bypass path
Passband 617 - 894 MHz
Insertion loss 0.2dB typical
Return loss 18dB
Maximum input power 200W (average) / 2000W (PEP)
Intermodulation products -165dBc in RX band at ANT
electrical
Impedance 50Ohms
aisg mode of operation (auto selected on valid aisg 2.0 frames)
AISG signals can be applied to the BTS ports. The TMA unit switches to AISG mode when valid frames are detected on either port. Each LNA is controlled uniquely by its sub-unit number.
DC supply voltage +9.0V to +30V DC
AISG version 2.0
Power consumption, AISG mode < 4W
AISG connector, current rating IEC60130-9, 8-pin female, 1.6A
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range -40ºC to +65ºC | -40°F to +149°F
Ingress protection IP67
Lightning protection IEC61312-1, RF: ±5kA (8/20us), AISG: ±2kA (8/20us)
MTBF >1,000,000 hours
Compliance EMC:EN 301 489-50, ETSI EN 300 019 class 4.1E, RoHS
mechanical
Feature TWIN QUAD
Dimensions H x D x W 344 x 258 x 58.5mm | 12.87 x 10.16 x 2.3in 344 x 258 x 109mm | 12.87 x 10.16 x 4.29in
Weight 6.5kg | 8.82lbs 11kg | 24.25lbs
Finish Powder coated, NCS 1502-R
Mounting Pole/wall bracket using two metal clamps, suits 40-140mm diameter poles
ordering information
Part Number Configuration Optional Features Connectors AISG Mode
KA-1000-2032 TWIN, 2 in / 4 out BASE MODEL 4.3-10 (F)
1xAISG
TWOTWO
KA-1000-4032 QUAD, 4 in / 8 out BASE MODEL 4.3-10 (F)
2xAISG
TWOTWO
MI-17131 TWIN, 2 in / 4 out BASE MODEL 4.3-10 (F)
1xAISG
ONETWO
MI-17132 TWIN, 2 in / 4 out BASE MODEL 4.3-10 (F)
1xAISG
TWOTWO
MI-17141 TWIN, 4 in / 8 out BASE MODEL 4.3-10 (F)
2xAISG
ONETWO
MI-17142 TWIN, 4 in / 8 out BASE MODEL 4.3-10 (F)
2xAISG
TWOTWO
Note: in the AISG mode "ONETWO " the multi band TMA is seen as 1 logic units with 2 subunits each and it is only required to connect to one of the two BTS ports. Either port can be used.
Note: in the AISG mode "TWOTWO " the multi band TMA is seen as 2 logic units with 2 subunits each and it is only required to connect to one of the two BTS ports. Either port can be used.
electrical block diagram
KA-1000-x032 where
    x denotes the configuration:
     x=2, Twin unit - 2 in / 4 out
     x=4, Quad unit - 4 in / 8 out
ANT1 and ANT 3 port is AWS & 1900 band
ANT2 and ANT 4 port is 617-894 band
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM MECHANICAL BLOCK DIAGRAM

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