DIPLEXER 600-700/850

The Kaelus DBCT108 is a bi-directional Diplexer designed to combine 600-700 with 850 technologies, the DBCT108 provides excellent insertion loss and passive intermodulation performance. Bidirectional passage of DC/AISG is provided in this outdoor product.


  • Enables antenna/feeder sharing for 600-700 and 850 networks
  • Designed and 100% tested for low passive intermodulation
  • Low insertion losses
  • Good return loss

technical specifications
Port Name 600-700 850
Passband 555 - 798MHz 824 - 894MHz
Insertion loss 0.15dB typical 0.2dB typical
Return loss 23dB typical
EVM ≤0.5% across any 10MHz ≤0.5% across any 20MHz
Group delay variation 7.5ns typical over any 10MHz 10ns typical over any 20MHz
Absolute group delay 7.5ns typical 17.5ns typical
Maximum input power 120W (average) / 1200W (PEP) 120W (average) / 1200W (PEP)
Phase linearity over any 10MHz 2° typical, 10 °maximum
Impedance 50Ohms
Intermodulation products -156dBc all ports with 2 x 20W carriers
Isolation 50dB typical
dc / aisg
DC/AISG pass on 700
Passband 0 - 3MHz
Insertion loss 1dB maximum
Return loss 12dB minimum
Input voltage range ± 31V
DC current rating 2A continuous, 4A peak
Compliance 3GPP TS 25.461
For further details of environmental compliance, please contact Kaelus.
Temperature range -40ºC to +65ºC | -40ºF to +149ºF
Ingress protection IP67
Altitude 3000m/10,000ft maximum
Lightning protection RF: ±5kA maximum (8/20us), IEC61312-1
MTBF >1,000,000 hours
Dimensions H x D x W (single twin unit) 172 x 267 x 89 mm | 6.77 x 10.51 x 3.50 in maximum
Dimensions H x D x W (dual twin unit) 172 x 267 x183 mm | 6.77 x 10.51 x 7.20 in maximum
Weight 5.5kg / 12lbs (single twin)
10.9kg / 24lbs (dual twin)
Finish Painted, light grey (RAL7035)
Connectors 4.3-10 (F) x 6 long neck (single twin)
4.3-10 (F) x 12 long neck (dual twin)
Wind Load Front 55N, Side 304N (single twin)
Front 140N, Side 339N (dual twin)
At 74m/s (AS/NZS 1170-2-2011 Structural design - Wind actions - Cyclone areas)
Mounting Pole/wall bracket supplied with two metal clamps for 45-178 mm diameter poles
ordering information
Part Number Configuration Optional Features Connectors DC/AISG Configuration
DBCT108F1V10-1 TWIN, 2 in / 4 out FIXED DC 4.3-10 (F) NO DC
DBCT108F1V10-2 QUAD, 4 in / 8 out FIXED DC 4.3-10 (F) NO DC
DBCT108F1V11-1 TWIN, 2 in / 4 out FIXED DC 4.3-10 (F) DC ON 600-700
DBCT108F1V11-2 QUAD, 4 in / 8 out FIXED DC 4.3-10 (F) DC ON 600-700
electrical block diagram
mechanical block diagram