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

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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

QUAD, 4 in / 8 out

BASE MODEL

4.3-10 (F)
2xAISG

ONETWO

MI-17142

QUAD, 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