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
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
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
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 |