DDF0973F20V3

DDF0973F20V3

Dual Duplex Filter P900

A Full Band GSM filter the DDF0973 provides rejection of the 850MHz frequency band in a small cost effective solution. Designed to prevent RX blocking when a 850MHz systems are co-located within the same environment.

FEATURES

  • Single Dual Duplex Filter
  • Various tunings to suit most applications
  • Excellent CDMA Rejection
  • Small Size

technical specifications
downlink (tx) path
Passband 935 - 960MHz
Bandwidth 25MHz
Insertion loss 0.5dB maximum at band edge / 0.4dB typical at mid-band
Return loss 18dB minimum
Maximum input power 100W (average) / 800W (PEP)
uplink (rx) path
Passband 890 - 915MHz
Bandwidth 25MHz
Insertion loss 2.7dB maximum at band edge / 0.4dB typical at mid-band
Return loss 18dB
attenuation
800 - 886.4MHz 55dB minimum
886.4 - 888.1MHz 35dB minimum
electrical
Impedance 50ohms
environmental
For further details of environmental compliance, please contact Kaelus.
Temperature range +10ºC to +45ºC | +50ºF to +113ºF
Altitude 2600m | 8530ft maximum
Lightning protection RF: 8/20µs, ±5kA maximum IEC61312-1
MTBF >500,000 hours
mechanical
Dimensions H x D x W 222 x 120 x 83.5mm | 8.74 x 4.72 x 3.28in
Weight 3kg | 6.61lbs
Connectors DIN 7-16 (F) x 2
Mounting Bracket supplied, see Mechanical drawing for holes size and position
ordering information
Part Number Description
DDF0973F20V3 Dual Duplexed Filter, GSM900, full band, rejection 55dB@886.4MHz
DDF0973F7V2 Dual Duplexed Filter, GSM900, Uplink 891.6 - 915.0MHz, Downlink 936.6 - 960.0MHz, Rejection 40dB@889.7MHz
DDF0973F15V2 Dual Duplexed Filter, GSM900, Uplink 880 - 905.2MHz, Downlink 925 - 950.2MHz, Rejection 40dB@873.39 - 877.08MHz
electrical block diagram
ELECTRICAL BLOCK DIAGRAM
mechanical block diagram
MECHANICAL BLOCK DIAGRAM

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