On-Q Low Pass Filters (IS-0154) — Installation Instructions

Installation instructions for the On-Q Low Pass Filters (IS-0154), used to block unwanted high-frequency channels in coax video distribution systems.

Overview

On-Q offers two low pass filters: P/N 364456-02 (5–560 MHz) and P/N 364456-03 (5–750 MHz).

• 364456-02: passes channels 2 through 79, blocks channel 80 and higher (analog cable, 6 MHz channel bandwidths).
• 364456-03: passes channels 2 through 116, blocks channel 117 and higher (analog cable, 6 MHz channel bandwidths).

These filters are used to create clear frequency space when there are no available channels left to modulate a signal onto.

Description

On-Q Low Pass Filters are in-line filters with an "F"-style port for cable in and cable out. The filter has a rugged die-cast case that is solder-sealed for shielding. Case dimensions: 4-1/4" long × 1" wide × 5/8" deep.

Installation Steps

1. Determine where the filter is to be used — see the manual's wiring diagram for the correct insertion point and connection into the video distribution system (between the CATV input and the video distribution amplifier).
2. Use quality 75-ohm jumper cables to connect the filter into the application. If making your own jumper cables, use RG6 cable with appropriate connectors and tools.

Important Notes

• Most video problems are associated with cable connections — take proper care when preparing and connecting cables.
• The filter should be installed before the video engine or amplifier.
• Digital cable usually occupies a 2 MHz channel bandwidth (vs. 6 MHz for analog), so the "channel 80 and higher" filter (5–560 MHz) could actually block channels 240 and higher on digital systems. Confirm your cable provider's frequency/channel assignments, or temporarily insert the filter to see what is lost.
• If set-top boxes are used, you may need to work around this filter — On-Q offers a Channel 2-4 Notch Filter (P/N 364456-01) for that purpose.

Specifications

• Document number: IS-0154, Rev. O
• Part numbers: 364456-02 (5-560MHz), 364456-03 (5-750MHz); related Notch Filter 364456-01
• Connector type: "F"-style, in-line
• Case: rugged die-cast, solder-sealed for shielding; 4-1/4" L × 1" W × 5/8" D
• Manufacturer: On-Q Technologies, Inc., P.O. Box 60907, Harrisburg, PA 17106-0907. Phone: 800-321-2343. www.onqtech.com