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Bandpass Filters (CATV and MATV)

CFAL Single Channel Adjacent Bandpass Filter
(CATV: T7 to T13, IF, 2 to 25)
BP7 Single Channel Adjacent Bandpass (CATV: 14 to 85)
CF7 Single Channel Semi-Adjacent Bandpass Filter
(CATV, VHF and UHF)
BP7-UHC UHF/Hyperband Bandpass Filter for UHF Chs 14-69, CATV chs 62-125, LTE 700 MHz block (A,B or C)
NF7 and VF7 Narrow 0.5 MHz and 2 MHz Bandpass Filter (4 to 450 MHz)
BP7-CEW Multiple Channel Adjacent Bandpass Filter (5 to 600 MHz)
CF7W, CF7W HR Wide Non-Adjacent Bandpass Filters for TV and LTE 700 MHz bands (5 to 900 MHz)



Adjacent Channel Bandpass (any channel from 5 to 250 MHz)

CFAL and CFAS

CFAL:
Dim 1.75"H x 19"L x 3"D



CFAS:
Dim: 4.25"L x 2.5"W x 3.25"H

Model CFAL and CFAS are designed to pass one specific TV channel, reject the adjacent channels, and all out-of -band frequencies. Channels available (CATV): T7 - T13, 2 - 13, A5 - A1, A14 - I22, 23 - 30, and TV-IF (41 to 47 MHz). Available for NTSC and ATSC system.

  • Operating Bandwidth: 5 to 750 MHz
  • Passband loss: < 3.5 dB (4 to 5dB at band edges)
  • Return Loss:15 dB typical (except band edges)
  • CFAL- rejection: >30 dB on adjacent carrier, > 20 dB on rest of channel, > 35 dB out-of-band
  • CFAS (outdoor version of CFAL) - rejection: > 25 dB on adjacent carrier, and >15 dB on rest of channel, > 30 dB out-of -band
  • Custom passband: any frequency band (2 to 16 MHz wide) within 5 to 250 MHz (e.g., CFAL-ch.14 -16)
  • Both models are also available in 50 ohms (BNC)

Example Graphs

CFAL-chs 8, T10, CFAL-ch.14 -16

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Adjacent Channel Bandpass (any channel 170 to 560 MHz)

BP7-Series: BP7-HT and BP7-CE (custom)


BP7-HT: Wall mount
Dim 6 "H x 9.25 "L x 4.5 "W


BP7-CE:
Dim: 3.5-5"H x 19 "L x 6 "D

High performance bandpass filters are designed for CATV operation. BP7-HT provides single channel passband and adjacent channel rejection. Use to filter modulators for adjacent operation (ex: chs 53, 54, 55). Available for NTSC and ATSC channels.

  • Channels available BP7-HT: 7 to 13, 23 to 65
  • Passband loss: 3 to 5 dB ( 5 to 6.5dB band edge)
  • BP7-HT- rejection: >25 dB on adjacent carrier, >20 dB on rest of channel, > 40 dB out-of -band
  • Operating Bandwidth: 5 to 750 / 1000 MHz
  • BP7-CE - Custom channel/rejection bandpass
  • Custom passband: any frequency band (4 to 8 MHz wide) within 120 to 560 MHz
  • Rack and wall mount models available
  • Supplied with final production graph

Example Graphs

BP7-HT ch.35 and BP7-HT ch.54

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Semi-Adjacent Bandpass (any channel 5-890 MHz)

CF7 and CF7 HR Series - General Purpose Bandpass Filters



CF7-CH.#
Dim 4.5 "L x 2.5"H x 1.75 "W



CF7-CH.# HR
Dim 7.5 "L x 2.5"H x 1.75 "W


Outdoor model
Dim: 4.25"L x 3.25 "W x 2.55"H

Designed to pass desired TV channel, and typically roll off >25 dB ± 5-6 MHz (VHF HR series) from passband edges (details- see Specs). Available for NTSC and ATSC systems. Available for 6 MHz HD applications as well as 8 MHz European standard. Applications: Pass preferred signal band for receive systems, or, suppress spurs at signal source for signal distribution systems.

CF7 and CF7 HR data sheets

CF7 sample graphs
CF7 HR sample graphs

  • Available channels: CATV: T7 - T13, 2 - 135; TV-IF, and, UHF 14 - 51
  • Special models for FM band, and, +700 MHz Safety and Commerial bands
  • Passband Group Delay: < 50 nSec; Ripple: ± .5 dB; Return Loss: >16 dB
  • Selectivity: semi-adjacent (details- see specs)
  • Operating Bandwidth: 5 to 800 / 1000 MHz
  • Custom passband: any frequency band ( from 4 to 12 MHz wide), within 4 to 800 MHz (see graphs)
  • Various connector options (details- see custom info)
  • Optional adjacent channel selectivity available for for chs: T7 to T13, IF, 2 to A14

Example CATV channel Graphs

CF7-chs T10, 3, 59 and 78, Specifications, Custom Info

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UHF/Hyperband/LTE Cavity Bandpass 460 to 850 MHz

BP7-UHC High performance bandpass

UHF or CATV Hyperband, cavity-type, single channel bandpass with low loss and highly selective skirt. Low profile - fits into one rack space. Suitable for reception and low power (10 watt) transmitter applications. Standard bandpass is available with 4 cavities. Bandpass channel is user specified and can be factory re-channnalized.

BP7-UHC rack or wall mount
Dim (in): 1 RU or 7 x 16 wall space

PDF Info Sheet




  • Available for 460 to 850 MHz: chs 14-69 UHF; chs 62-125 CATV, and LTE Block (A,B,C -700-750 MHz)
  • Available with 3 to 6 cavities (4 cavities standard)
  • Available with notch filters, or up to 6 cavities, for greater selectvity
  • BP7-UHC can be re-channelized from 470-600, 570-720, or 720-850 MHz
  • Passband Bandwidth: 4 to 8 MHz (e.g., for ATSC or PAL formats) *
  • Passband Loss: <2.0 dB; Stopband (4 Cavity): >25 dB ± 8 MHz from bandedge
  • Return Loss: > 16 dB
  • Rejection From Passsband edge (2 dB insertion Loss):

    3 Cavity 4 Cavity 5 Cavity
    10 dB +/- 5 MHz +/- 4 MHz +/- 3 MHz
    25 dB +/-9 MHz +/- 7 MHz +/- 6 MHz
    50 dB +/-22 MHz +/-18 MHz +/-16 MHz
  • Reject Band: 5 MHz to 1 GHz
  • RF Power Handling: 10 Watts max
  • Connectors: "F" females (standard), 50 BNC/N optional
  • * Special order for passband up to 18 MHz (3 cavity)

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Narrow-Band Bandpass (Fixed & Tuneable)

NF7, NF7-HQ, and VF7 - Narrow Bandpass Filters

NF7-Fc
Dim 3.6"L x 2.5"H x 3.2"W

NF7-(Fc)

Passband: 1 to 2 MHz

  • Fixed frequency filter. User specified passband
    (Fc - 4.5 to 250 MHz)
  • Stopband rejection:> 25dB at ± 3 MHz from Fc
  • NF7 is similar to VF7 (below) but not tunable. NF7 is trap enhanced for greater selectivity (i.e., >40dB rejection at ±12 MHz Fc)

Model NF7 is designed to pass a narrow, 1 MHz, frequency band while attenuating all other signals. All models are 75 ohms impedance with F-type connectors (optional 50 ohms with BNC or N).

NF7-(Fc) HQ
Dim 4.25"L x 4"H x 1.75"W

NF7-(Fc) HQ

Passband: 0.5 to 1 MHz (approx)

  • HQ Helical resonator design
  • Fixed frequency filter ( 75 ohms)
  • Fc is available from 60 to 750 MHz
  • Insertion at Fc: from 3 to 5 dB
  • Return loss: 16 dB typical
  • Can be trap enhanced for greater selectivity
  • Selectivity ( 20 dB rejection points ):

VF7-(Fc)


VF7-(Fc)

PDF Info Sheet

Passband: 0.5 to 1 MHz, frequency tunable

  • Factory pre-tuned to specified frequency (Fc)
  • Passband insertion loss is <3 at Fc
  • Stopband rejection: 15dB min at ± 3 MHz from Fc
  • Tuning range is approx ±10 MHz.
  • User adjustable via two screw trimmers
  • Fc available from 60 to 600 MHz

Example Graphs

NF7-4.5, NF7-76 HQ, NF7-721.25 HQ, VF7-180

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Adjacent Channel Wide-Bandpass (custom within 3 to 560 MHz)

BP7-CEW

Bandpass filter network consists of adjacent channel lowpass and highpass joined together to form a wide bandpass. Custom ordered to pass several consecutive channels. Example: CE7-BP ch.50/56 - pass chs 50 to 56, rejects ch. 49 below, ch. 57 above, and all other channels.

BP7-CEW (50 dB)
Dim 3.5"H x 19"L x 6"D (or 5.25H)
  • Adjacent channel selectivity
  • User specified passband ( Fc1 to Fc2 ), for frequency band within 5 to 560 MHz (or chs T7 - 85)
  • Passband loss: < 4 dB ( except band edges - Fc1 and Fc2 - depends on frequencies - see graph).
  • Stopband: > 25 dB on adjacent channels (greater attenuation , e.g., > 50 dB - inquire )
  • Operating Bandwidth is 5 to 750/1000 MHz
  • Temperature stable (-10° to +40° C)
  • Models also available with semi-adjacent selectivity

Example Graphs

BP7-CEW-ch.50/56

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Wide Bandpass, Non-Adjacent Filter (within 3 to 860 MHz)

CF7W and CF7W HR


CF7W
Dim 4.5"L x 2.5"W x 2.5"H



CF7W
Dim 3.5"W x 7"L x 2"H (or 4H)

CF7W, custom wide bandpass, combines sharp lowpass and highpass filters together for desired passband., with 5% frequency transition from 3dB BW to 40dB stopband.
CF7W HR, custom wide UHF/LTE bandpass, combined Helical resonators to form highly selective bandpass. Available for TV or LTE 700 MHz bands from 400 to 900 MHz, with 6 to 50 MHz bandwidth, with <3.0% frequency transition from 3dB BW to 40dB stopband.
CF7W and CF7W HR standard connectors is 75 ohms F-female. Also available with 50 ohms impedance with BNC, N or SMA connectors.

  • Click for example graph: CF7W-698/746 HR bandpass CF7W-698/746 HR
    • Provides spurious suppression for a group of consecutive RF channel modulators.
    • Available for standard CATV, VHF and UHF - click for table showing a variety of CF7W models
    • Customized to pass desired segment of the TV spectrum ranging from 5 to 860 MHz (Fc1 to Fc2 )
    • Passband loss: < 2 dB (except 3dB at cut-offs)
    • Ripple: < 1dB (<.5 dB for noise filters applications)
    • Stopband: > 40dB (custom levels from 20 to 60 dB)
    • Selectivity: > 40dB roll off at frequencies 4% above and below cutoffs, Fc1 to Fc2 (see graph)


    CF7W Multi-Channel Bandpass Filters for Off-the-Air TV System

    VHF-HI to UHF bandpass: 174-700 MHz Pre-selector filter


    CF7W-vhf-uhf-bandpass

    Dim 4.5"H x 2.5 "L x 1.75W

  • Low Loss design for 75 ohms Off-Air TV systems
  • Pass VHF chs 7-13, UHF TV chs 14-51 only. It blocks from 164 Mhz & below (including >55 dB rejection of FM, CB bands), and, blocks from 740 MHz & above
  • Insertion loss <1.25 dB , except 2.5 dB at 174 and 700 MHz
  • Out of band rejection 40dB typical
  • Return loss 15 dB typical
  • Click for graphs of 174 to 700 MHz band pass,e.g., CF7W-VHF-Hi-UHF
  • VHF only bandpass: 174-216 MHz Pre-selector filter

    CF7W-VHF

    Dim 4.5"H x 2.5 "L x 1.75W

  • Low Loss design for 75 ohms Off-Air TV systems
  • Pass VHF TV chs 7 thru 13 only, rejection >60 dB FM and below,UHF and above
  • VHF insertion loss <1.5 dB , except 2.5 dB at 160 and 216 MHz
  • Out of band rejection 60dB typical
  • Return loss > 16 dB
  • Click for graphs of UHF band pass,e.g., CF7W-VHF


  • UHF only bandpass: 470-700 MHz Pre-selector filter

    CF7W-UHF

    Dim 4.5"H x 2.5 "L x 1.75W

  • Low Loss design for 75 ohms Off-Air TV systems
  • Pass UHF TV chs 14-51 only, block 440 Mhz and below, 740 MHz and above
  • UHF insertion loss <1.5 dB , except 2.5 dB at 470 and 700 MHz
  • Out of band rejection 45dB typical
  • Return loss > 16 dB
  • Click for graphs of UHF band pass,e.g., CF7W-UHF


  • Double Bandpass Filter : VHF / UHF Pre-selector filter

    Examples passbands

    CF7W 174-216/470-806 is low loss pre-selector filter that passes VHF chs 7 thru 13 and UHF chs. 14-69.

    CF7W 54-216 MHz/470-700 is low loss pre-selector filter that passes VHF 2 thru 13, UHF chs 14 thru 52.

    CF7W-174-216/470-806
    Dim 3.5"H x 8 "L x 3.5W

    CF7W-54-216/470-700
    Dim 3.5"H x 7.5 "L x 3.5W




  • Low Loss design for 75 ohms Off-Air TV systems
  • VHF and UHF insertion loss <1 dB , except <2.0dB at bandedge
  • Out of band rejection 25dB to 40 dB
  • Return loss 12 to 16 dB
  • Can be trap enhanced for greater selectivity

  • Graphs CF7W-VHF-UHF


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