Spectrum cable tap

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Can i split the coax cable going to my cable modem to attach a TV there ?

Tags: splitter, coax, cable modem, TV, tap

Usually yes, however it is not a good idea to do so. Every splitter on the cable between the can and your cable modem reduces signal strength (by at least 3db). Also, mistakes in home wiring can cause ingress in the upstream channel for all users on that upstream.

If you must split the cable going to your cable modem, you should use either a tap (loss only on one end, going to your TV), or high grade 2GHz splitters, and because of the lower signal level the modem might not synch at all, or you might experience some packet loss and speed degradation. Depending on your installation, there also might be some filters on the line preventing the operation of both TV and the cable modem on the same cable.

Notes: It may be a good idea to check the signal strength on your cable modem to determine whether a tap or a splitter is better for you - a tap will only incur signal degradation on one leg (-6db), while a splitter will incur signal degradation on both legs (-3.5db).

Sours: https://www.speedguide.net/faq/can-i-split-the-coax-cable-going-to-my-cable-modem-105

Cable television systems use radio frequency, or RF, signals to provide television, telephone and broadband Internet services to customers. These RF signals normally do not cause interference when cable systems comply with FCC rules for limiting interference, but the signals can "leak." Cable signal leaks occur when the RF signals transmitted within a cable system are not properly contained. Signal leaks can be caused by loose connectors, damaged equipment or cables, or cables that are unterminated (not connected to a device, panel or wall outlet).

Why is it important to determine leakage?

Cable television systems and licensed broadcasters use many of the same frequencies to transmit programming. Cable signal leakage can interfere with any of the over-the-air services using the same frequencies as the cable operator within the vicinity of the cable system.

Cable systems use broadcast TV, radio, aeronautical radio (Federal Aviation Administration), and other channels. Cable operators are considered secondary users of these frequencies and must not interfere with primary use.

What are the FCC rules governing signal leakage?

The FCC sets maximum individual signal leakage levels for cable systems, with more stringent limits on cable systems that may interfere with aeronautical and navigation communications. Cable operators must have a periodic, on-going program to inspect, locate and repair leaks.

Does a cable operator need to come into my home to monitor for signal leakage?

Cable operators can use equipment to locate the general area of a leak. To pinpoint a leakage source for repair, the cable operator may request access to your home.

Homeowners may deny access to their premises. but if a leak cannot be repaired without access, the cable operator can disconnect your service.

Can my cable operator terminate my service because of signal leakage?

Cable operators can disconnect service in order to repair signal leakage that exceeds FCC standards, but may not charge you for service while it is disconnected.

Is the cable operator responsible for repairing signal leakage on subscriber-owned equipment?


Can I hook up a second TV set myself?

Yes, but because the cable operator is responsible for leakage from the wiring, the operator can either refuse to connect to it or terminate service if the hook up causes signal leakage.

Is signal leakage biologically harmful?

The power levels used in cable systems are generally lower than broadcast TV stations, so it is unlikely that cable signal leakage will exceed the FCC's guidelines for exposure to RF emissions that are considered harmful.

Printable Version

Cable Signal Leakage (pdf)

Sours: https://www.fcc.gov/consumers/guides/cable-signal-leakage
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2GHz GigaXtend Hardline MultiPort Taps

Part Number



2 Port Multi-Tap, 5-2050MHz, 15A thru, *= 05T,08,11,14,17,20,23,26,29 dB


4 Port Multi-Tap, 5-2050MHz, 15A thru, *=08T,11,14,17,20,23,26,29 dB


8 Port Multi-Tap, 5-2050MHz, 15A thru, *=14T,17,20,23,26,29 dB


2 Port Multi-Tap, 5-2050MHz, 15A thru, with Drop Power, *= 08,11,14,17,20,23,26,29 dB


4 Port Multi-Tap, 5-2050MHz, 15A thru, with Drop Power, *= 11,14,17,20,23,26,29 dB


8 Port Multi-Tap, 5-2050MHz, 15A thru, with Drop Power, *= 17,20,23,26,29 dB


4 Port Multi-Tap, 5-2050MHz, 15A thru, w/o Plug-in, *= 08T,11 dB


8 Port Multi-Tap, 5-2050MHz, 15A thru, w/o Plug-in, *= 11T,14 dB


Power Inserter, 5-2050MHz, 20A


Wideband coupler 5-2050MHz, 15A thru, *=04, 08, 12, 16 dB coupler value

3 way splitters (balanced,unbalanced) *=777, 959


Accessories, 1.8GHz Cable Equalizers, *=02,04,..20 dB


Accessories, 1.2GHz Cable Equalizers, *=02,04,..22 dB


Accessories, 2.05GHz Cable Simulators, *=02,04,06,08,10,12,15 dB


Accessories, 42MHz Return Attenuators with 54-2050MHz Passband, *=03,06,..21 dB


Accessories, 85MHz Return Attenuators with 102-2050MHz Passband, *=03,06,..21 dB


Accessories, 15A plug-in fuse for GigaXtend (not needed for taps)


Accessory: cutting guide for KS adapters, 10pc kit


Accessory: spare watertight plug for 5/8-24 port, 10pc kit


Accessory: spare shunt signal director for fuse position (bus bar), 10pc kit


Accessory: spare 0dB RF shunt for plug in position, 10pc kit


Accessory: 2GHz 75ohm RF Terminators (F-male), 100pc kit

Sours: https://atx.com/products/taps-passives/gigaxtend-xs-series-2ghz-taps-passives/2ghz-gigaxtend-hardline-multiport-taps/
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