DIPLEXER 600/700-850
The Kaelus KA-2028 is a bi-directional diplexer designed to combine B71 with 700-850 bands. The KA-2028 provides excellent insertion loss.
FEATURES
- Enables antenna sharing for B71 with 700-850
- Narrow guard band to utilize maximum spectrum
- Very low insertion loss
- Small size, lightweight
TECHNICAL SPECIFICATIONS |
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| PORT NAME | 617-698 | 717-894 | |||||||||||||
| Passband | 617 – 698 MHz | 717 – 894 MHz | |||||||||||||
| Insertion loss | 0.2 dB typical, 0.35 dB max | 0.2 dB typical, 0.4 dB max | |||||||||||||
| Return loss | 20 dB typical 18 dB min |
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| Maximum input power | 200W (average) | 200W (average) | |||||||||||||
| Intermodulation products | <-160 dBc typ at 2 x +43 dBm TX Carrier (IM3) | <-160 dBc typ at 2 x +43 dBm TX Carrier (IM3) | |||||||||||||
| ELECTRICAL | |||||||||||||||
| Isolation | 45 dB minimum 717-894 MHz | 45 dB minimum 617-698 MHz | |||||||||||||
| Impedance | 50 Ω | ||||||||||||||
| DC / AISG | |||||||||||||||
| DC/AISG path is factory configurable, see ordering information | |||||||||||||||
| Passband | 0 – 3 MHz | ||||||||||||||
| Insertion loss | 1 dB maximum | ||||||||||||||
| Return loss | 12 dB minimun | ||||||||||||||
| Input voltage range | ± 30 V | ||||||||||||||
| DC current rating | 3 A continuous | ||||||||||||||
| Compliance | 3GPP TS 37.461 | ||||||||||||||
| ENVIRONMENTAL | |||||||||||||||
| For further details of environmental compliance, please contact Kaelus. | |||||||||||||||
| Temperature range | -40 ºC to +65 ºC | -40 °F to 149 °F | ||||||||||||||
| Ingress protection | IP67 | ||||||||||||||
| Lightning protection | +/-5kA 8/20 µs | ||||||||||||||
| MTBF | > 1,000,000 Hours | ||||||||||||||
| Compliance | ETSI EN 300 019-1-4 class 4.1E, RoHS | ||||||||||||||
| MECHANICAL | |||||||||||||||
| fdsafds | |||||||||||||||
| Dimensions H x D x W (twin unit) | 230 x 220 x 162 mm | 9.06 x 8.66 x 6.38 in | ||||||||||||||
| Weight | 6.6 kg | 14.5 lbs | ||||||||||||||
| Finish | Painted, NCS 1502-R | ||||||||||||||
| Connectors | 4.3-10 Female | ||||||||||||||
| Mounting | Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles | ||||||||||||||
ORDERING INFORMATION |
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| PART NUMBER | CONFIGURATION | OPTIONAL FEATURES | CONNECTORS | DC/AISG CONFIGURATION | |||||||||||
| KA-2028-2031 | 4 in / 2 out | FIXED DC FACTORY CONFIGURABLE |
4.3-10 (F) | NO DC | |||||||||||
| KA-2028-2032 | 4 in / 2 out | FIXED DC FACTORY CONFIGURABLE |
4.3-10 (F) | DC TO ALL | |||||||||||
| KA-2028-2033 | 4 in / 2 out | FIXED DC FACTORY CONFIGURABLE |
4.3-10 (F) | DC TO LOW | |||||||||||
| KA-2028-2034 | 4 in / 2 out | FIXED DC FACTORY CONFIGURABLE |
4.3-10 (F) | DC TO HIGH | |||||||||||
ELECTRICAL BLOCK DIAGRAM |

KA-2028-XXXZ where
- Z denotes the DC path variant
- LOW port is 617-698 MHz
- HIGH port is 717-894 MHz
- Please note if DC ALL is used that all ports which are DC shorted need to have a DC block
MECHANICAL BLOCK DIAGRAM |


