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CATV/MATV - Highpass filters

General Purpose Highpass Filters
VHF-High Band-UHF Highpass (FM Block) Filter
UHF Antenna Systems Highpass (NTSC and ATSC)
Table of Example HP7 models


Model HP7: General Purpose Highpass Filters

Filter passes the upper TV/RF spectrum from Fc (customer specified) and above, and provide >40 dB signal rejection in the stopband (from Fs). Application: Use to isolate frequencies above Fc from frequencies below Fs. Standard HP7 models are listed in a table below. Table includes: typical transition frequencies, and general specifications.

Model HP7
Dim 3.6"L x 1.5"H x 3.2"W
  • Economical filter offers user specified cutoff (Fc)
  • Fc is available from 1.5 MHz to 800 MHz
  • Passband: 550, 750,or 860 MHz (1000 MHz - inquire)
  • Passband to stopband frequency transition is 5%
  • Custom trap enhanced skirt for < 5% transition
  • Low passband loss: < 1dB ± .5dB ripple
  • Available Indoor or outdoor housing

Example Graphs

HP7-536/55 Customizing Info

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Model HP7-162/174 VHF-Hi Highpass Filters

Filter passes the upper TV/RF spectrum from Fc VHF High Band (chs 7-13) thru UHF. It provides >60 dB signal rejection of FM and CB band. Application: Use to block undesired signals below VHF High. Filter passes chs 7-13 and UHF with minimal thru loss.



Model HP7-162/174

Dim 4.0"L x 1.75"H x 2.0"W
  • Filter offers low Thru Loss of desired signals (174-800 MHz)
  • Stopband frequency >60 dB @ FM and CB bands
  • Available Indoor or outdoor housing

PDF HP7-162/174 info

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Model HP7-440/470, UHF band Highpass Filters

Model HP7-440/470
Dim 3.6"L x 1.5"H x 3.2"W

Model HP7 440/470-C is a High Pass Filter designed for Off-the-Air UHF receive applications. It is used to pass UHF signals (470 to 800 MHz) and block VHF, FM, RF signals that overload UHF pre-amplifier and TV tuner. Suitable for analog and digital signals.

  • Flat passband: 470 to 800 MHz with low delay ( < 25 nSec)
  • Passband <1 dB insertion loss (except 1.5 dB @ 470 MHz)
  • Stopband: DC to 440 MHz ( >40 dB rejection)
  • Stopband: >75 dB rejection VHF Low/FM bands; >65 dB VHF HI band
  • Available Indoor, outdoor, and, compact size housings

PDF HP7-440/470 example graphs

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Example High Pass Filters for CATV / MATV

HP7- Fs / Fc (MHz)

Stopband(MHz)

Passband(MHz) Transition (MHz) General Specifications
HP7- 6/8.5 0 to 6 8.5 to 550 2.5 Passband...... Fc to 750 MHz
HP7-11/14 0 to 11 14 to 550 3 Option 550, 860, 1000 MHz
HP7-35/43 0 to 35 43 to 750 8 Passband Loss .. <1.5 dB
HP7-48/54 0 to 48 54 to 870 6 Flatness .... .5 dB
HP7-71/77 0 to 71 77 to 800 6 Stopband Attn.. 40dB
HP7-98/108 0 to 98 108 to 800 10 Return Loss ... 14dB typ
HP7-108 / 115 0 to 108 115 to 870 7 Power pass: No (optional some models)
HP7-146/153 0 to 146 153 to 870 7
HP7-162/174 0 to 162 174 to 870 12 Dimensions (in):
HP7-220/230 0 to 220 230 to 870 10 3.6L x 1.6H x 3.5W (indoor) 4.5L x 3.25 H x 2.5W (outdoor)
HP7-288/302 0 to 288 302 to 870 14
HP7-342/366 0 to 342 366 to 870 24 Weight(oz) ..6 (indr), 8 (outdr)
HP7-450 / 470 0 to 450 470 to 860 20 Connectors...... F-type Female
HP7-550 / 576 0 to 550 576 to 860 26 F-type male optional
HP7-600 / 628 0 to 600 628 to 860 28 BNC female optional
HP7-650 / 680 0 to 650 680 to 860 30
HP7-750 / 780 0 to 750 780 to 900 30

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