SMART BIAS TEE
The Kaelus KA-9003 provides a flexible Smart Bias Tee solution allowing for AISG and DC to be placed onto a feeder at the bottom of the tower or extracted from the feeder at the top. Operating across all the cellular frequency bands the KA-9003 provides the following additional benefits
FEATURES
- Primary surge protection limits the voltage let-through from the feeder to the DC port
- Available in top of the tower or bottom of the tower applications
- Variable connector configurations to allow for different installation techniques and scenarios
- IP67 for continuous outdoor operation
TECHNICAL SPECIFICATIONS |
| RF | |||||||||||||||
| Passband | 698 – 2690MHz | ||||||||||||||
| Return loss | 20dB minimum input and output | ||||||||||||||
| Insertion loss | 0.1dB maximum | ||||||||||||||
| Maximum input power with no damage | 750W (average) maximum | ||||||||||||||
| RF impedance | 50ohms | ||||||||||||||
| Isolation RF – DC | 65 dB | ||||||||||||||
| Intermodulation, passive | <-159dBc with 2 x 20W carriers | ||||||||||||||
| DC | |||||||||||||||
| DC Current | 2.7 A | ||||||||||||||
| Voltage Drop | 1 V | ||||||||||||||
| ENVIRONMENTAL | |||||||||||||||
| For further details of environmental compliance, please contact Kaelus. | |||||||||||||||
| Temperature range | -40ºC to +65ºC | -40°F to 149°F | ||||||||||||||
| Ingress protection | IP66, Outdoor unit | ||||||||||||||
| Lightning protection | IEC-61000-4-5 8/20µs, ±5kA |
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| MECHANICAL | |||||||||||||||
| Dimensions H x D x W | 41 x 76 x 51 mm maximum | ||||||||||||||
| Weight | 0.75 kg | ||||||||||||||
| Finish | Painted, light grey (NCS 1502-R) | ||||||||||||||
ORDERING INFORMATION |
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| PART NUMBER | CONFIGURATION | OPTIONAL FEATURES | CONNECTORS | DC/AISG CONFIGURATION | |||||||||||
| KA-9003-1000 | SINGLE, 1 in / 1 out | Bottom of tower version: Inject AISG on RF |
BTS 7/16(M) ANT 7/16(F) AISG (M) |
Compliant with AISG type signalling 2.176 MHz |
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| KA-9003-1001 | SINGLE, 1 in / 1 out | Top of tower version: Extract AISG from RF |
BTS 7/16(F) ANT 7/16(M) AISG (F) |
Compliant with AISG type signalling 2.176 MHz |
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| KA-9003-1002 | SINGLE, 1 in / 1 out | Bottom of tower version: Inject AISG on RF |
BTS 7/16(F) ANT 7/16(M) AISG (M) |
Compliant with AISG type signalling 2.176 MHz |
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| KA-9003-1003 | SINGLE, 1 in / 1 out | Top of tower version: Extract AISG from RF |
BTS 7/16(M) ANT 7/16(F) AISG (F) |
Compliant with AISG type signalling 2.176 MHz |
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ELECTRICAL BLOCK DIAGRAM |

MECHANICAL BLOCK DIAGRAM |


