DDF9007F1V1-1

DDF9007F1V1-1

Dual Duplex Filter GSM-R 900MHZ

Dual Duplex GSM-R filters are two port units with the ability to simultaneously pass both uplink and downlink GSM-R signals

FEATURES

  • Designed for GSM-R cab radio use
  • Low insertion loss (0.5dB typical)
  • Provides 40dB of rejection to adjacent EGSM900 uplink and downlink
  • Comply to EN45545 Fire Protection on Railway Vehicles
  • CE/RoHS/ETSI compliant
  • IP54 outdoor applications

technical specifications
Band Name DOWNLINK (TX) UPLINK (RX)
rf performance
Passband 918 - 925MHz 873 - 880MHz
Bandwidth 7MHz
Insertion loss 2.0dB maximum at band-edge, 0.5dB typical at mid-band
Return loss 20dB minimum all ports
918 - 924.8MHz- 15dB minimum all ports at -40°C
924.8 - 925MHz- 10dB minimum all ports at -40°C
20dB minimum all ports
15dB minimum all ports at -40°C
Maximum input power 20W 20W
rejection characteristic (port 1 to port 2)
DC - 872MHz 40dB minimum
882 - 917MHz 40dB minimum
925.5 - 926.2MHz 30dB minimum
926.2 - 930MHz 40dB minimum
930 - 2700MHz 50dB minimum
electrical
Impedance 50ohms
Intermodulation products < -150dBc (in uplink band, 2x 20 W carriers)
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range -25ºC to +70ºC | -13°F to +158°F, EN 50155, 4.1.2, T3
Ingress protection IP54
Altitude 1,400m | 4,600ft, EN 50125.1 sub clause 2, Class AX.
MTBF >1,000,000 hours
Compliance EN 50155 4.1.3 shock and vibration
EN 50155 4.1.4 relative humidity
EN 50121-3-2 EMC Rolling Stock
EN 45545 Fire Protection on Railway Vehicles
ETSI 300-019-2-1 Storage and Transport Environmental
RoHS
mechanical
Dimensions H x D x W 295 x 350 x 150mm | 11.61 x 13.78 x 5.9in (excluding brackets)
Weight 15.0kg | 33.1lbs
Connectors N type (F) X 2
Mounting Customer specific, includes grounding post
ordering information
Part Number Description
DDF9007F1V1-1 Dual Duplexed Filter, GSM900
DCI9002F1V1-1 DC Injector
SWT9001F1V1-1 Switch assembly for DDF9001F1V1-1
GSR0001F1V1-1 System including DDF9007F1V1-1 and SWT9001F1V1-1
electrical block diagram
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM

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