Directional Couplers by MCV Microwave

DCBM1923-1948-145A1

High Band Combiner

  • Covers 1900 & AWS-Ext Bands
  • Fully Weatherized
  • Low Loss / High Isolation
  • DC / ASIG Auto Sense
  • Single or Dual Units Available

DCBM1923-1948-145A1

Electrical Specifications
Band 1 – 1900
Passband MHz Min 1850-1995
Insertion Loss dB Max 0.35
Return Loss dB Min 22
Isolation to Band 2 dB Min 60
Average input power W Max 250
Input Peak Envelope Power W Max 3000
Band 2 – AWS
Passband MHz Min 1695-1780 and 2110-2200
Insertion Loss dB Max 0.35
Return Loss dB Min 22
Isolation to Band 1 dB Min 60
Average input power W Max 250
Input Peak Envelope Power W Max 3000
Intermod Products at all Ports with two +43dBm tones dBc Max -156
Environmental Specifications
Environmental rating     ETSI EN 300 019 class 4.1, RoHS
Ingress protection     IP67
Temperature range °C   -40 to +65
Temperature range °F   -40 to +149
Wind force @ 200 km/h (125 mph) front/side Lbf.   13.74 / 4.21
Lightning protection all ports     RF port: ±10kA max (8/20µs), IEC 61000-4-5
Altitude     3,000m max | 10,000ft max
Mean Time Between Failures (MTBF) Hrs. Min >10^6
DC Sense and Routing Specifications
Input Voltage DCV   8 to 35
DC current rating amps Max 1.5, current limited
Compatibility AISG     1.1 / 2.0
Combiner function
DC on high band or low band port     DC-AISG connected to COM
DC on both ports     DC-AISG connected from high band to COM
Splitter Function
DC on COM detected     DC-AISG routed to port with AISG device
Port priority for multiple devices     AWS
Mechanical Specificiations
Connectors RF 4.3-10 Female (Long neck)
Ground stud M6 x 1 (hex nut included)
Connectors Quantity 3
Dimensions excluding brackets & connectors L x W x H mm (in.) 186 x 156 x 48 (7.32 x 6.14 x 1.89)
Weight, kg (lbs.) 2.27 (5.0)
Mounting Pole/wall bracket supplied including two metal clamps for 45-178 mm diameter poles

Outline Drawing

Outline Drawing AT Series Attenuators