Band-pass filter for channels 34~53 (574 - 743MHz)

Band-pass filter for channels 34~53 (574 - 743MHz)
Model: OBF3453
No of inputs: 1
No of outputs: 1
Frequency range - In-band: 574-734MHz
Channel group / (Ch range): B (Ch34-53)
Insertion loss - In-band: <2dB
Out-of-band rejection - Lower: >-30dB @ 530MHz
Out-of-band rejection - Upper: >-30dB @ 812MHz
LTE band rejection: >-25dB @ 791MHz
LTE band rejection: >-45dB @ 821MHz
Label Indication colour: Yellow
Connectors: F – female type
DC Pass: DC Blocked
Dimensions: 82 x 34 x 18mm

The RF spectrum is filling up fast. With GSM, TETRA, PMR, LTE (4G) and forthcoming “white spaces” transmissions likely to cause interference it is even more important to properly filter the input to a TV aerial installation and signal distribution system. Un-filtered installations are likely to suffer from the effects of interference causing unreliable reception and disturbed viewing. OPTIMA filters are designed to remove unwanted frequencies from the aerial system.

To choose the right filter, establish the range of channels required (lowest and highest channel number) from your local TV transmitter and choose the nearest filter covering that channel group.

  •  High Out-of-Band rejection >-30dB typical (except OBF4868 & OBF2160 in LTE bands)
  •  Low In-Band insertion loss <2dB typical , 3dB at pass band edges.
  •  Reduces overlap interference from out-of-band transmitters
  •  High quality fully screened die-cast metal housing with F connectors
  •  Colour coded label for easy channel group identification
  •  Visible mounting holes & slots for easy fixing


Band-pass filter for channels 34~53 (574 - 743MHz)


File File Type File Size Download Description
Optima band-pass filters issue2 jan 2013 pdf 612.34 KB Download