2-Way F-type Splitter, LTE Blocking Filter 35-55dB (upto ch57)

F-type 2-Way Splitter with LTE Blocking Filter 35dB-55dB (upto ch 57)

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LTE Protected Screened Inductive Splitter/Combiner 1 In 2 Out. DC Pass 1 Leg. 

Screened wideband units with built in high performance LTE filtering intended for splitting digital aerial feeds in strong signal conditions where the use of distribution amplifiers or active splitters is unnecessary. These products can also be used as general-purpose signal splitters or combiners.

Suitable for indoor or outdoor use.

 

The introduction of new mobile telephony and broadband data services in former TV channels 61 to 69 (part of the ‘digital dividend’) is likely to cause interference to many existing terrestrial TV reception and distribution systems. This product can be used to overcome interference problems in many such systems.

 

FEATURES

  • 2-, and 4-way models available.Passes all terrestrial broadcast transmissions up to and including TV channel 57.
  • High attenuation in LTE bands, will cure the majority of interference problems, from both base stationsand mobile user equipment.
  • Low insertion loss with excellent 75 Ω impedance matching and high isolation between outputs.

  • Fully screened RF modules in robust diecast enclosures. Strong cast-in 'F' connectors.

  • Proven free-draining moulded enclosures give easy access and cannot trap water.

  • Directional power pass (20 V & 250 mA max) from any output leg to the common input, allowing an upstream amplifier to be powered.

  • Low insertion loss and good 75 Ω match throughout the pass-band.
  • Male and female connectors allow insertion into existing systems with no need for further cables or back-to-back adapters.
  • With equipotential bonding point.

Application guidance

  • Usable for channel 58 with increased insertion loss.

  • Not suitable for areas where TV channels 59 and 60 are required.

  • Care must be taken to avoid interference pick-up after the filter. Attention must be paid to the quality of components such as flyleads and outlet plates, etc.

  • In severe cases two filters may be cascaded by screwing them directly together. This will of course

    increase the insertion loss. 

TECHNICAL INFORMATION

 

Product Code

Ways

 Frequency Range Insertion Loss VHF1  Insertion Loss UHF2 Attenuation in stop-band  Output Isolation  Power Pass3

 

proLTE12/57

 

 2

 

47 - 790 MHz

 

≤3.5 dB

 

≤4.2 dB

Frequency Value
791 – 796 MHz LTE downlink block A1 ≥ 35 dB
796 – 801 MHz LTE downlink block A2 ≥ 45 dB
801 – 811 MHz LTE downlink block B ≥ 50 dB
811 – 821 MHz LTE downlink block C ≥ 55 dB

832 – 862 MHz LTE uplink (all blocks)

≥ 55 dB

 

≥22 dB

 Yes

 

Notes 

  • For the purpose of this specification the LTE downlink band is split into three 10 MHz wide blocks designated A, B and C. Block A is further divided into two 5 MHz sub-blocks. The LTE e-EUTRAN air-interface specification allows for flexible transmissions of 5, 10 or 20 MHz bandwidth. Actual transmitted signal parameters will depend on the licences granted to particular network operators.
  • In TV channel 58 the pass-band insertion loss is increased to typically 7 dB.
  • For two cascaded filters the pass-band insertion loss at 766 MHz will be typically 7 dB and the stop-band attenuation typically in excess of 76 dB. (Figures given as typical values are not guaranteed.)
  •  1 47-230 MHz. 2 230-862 MHz. 3 Directional (diode-steered) power pass from any output(s) to common input. Typlical voltage drop 0.8 V. Power is isolated from reaching any unpowered output legs. For use in DC negative earth systems only.

For more information on LTE please refer to our FAQ.

PROLTE12-57
2013-11-09

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