What Cable Is Used for TV Connections?
Most TV-related coax connections use 75-ohm coaxial cable. In residential installations, that usually means RG6.
| TV Connection | Recommended Cable | Common Connector |
|---|---|---|
| Cable TV wall outlet to TV/cable box | RG6 75-ohm | F-type |
| Cable box to wall outlet | RG6 75-ohm | F-type |
| Satellite dish to receiver | RG6 75-ohm | F-type |
| Outdoor TV antenna to indoor TV | RG6 75-ohm | F-type or regional antenna connector |
| Long outdoor run | RG11 75-ohm | F-type |
| Older analog video/CCTV | RG59 75-ohm | BNC, RCA, or F-type |
If you are buying one cable for a modern TV setup, choose RG6 unless your equipment or installer specifies something else.
Fast Recommendation by Buyer Type
| Buyer Type | Best Starting Choice | Why |
|---|---|---|
| Apartment renter replacing a short TV cable | RG6 with F-type connectors | Easy, common, suitable for cable TV and many antenna setups |
| Homeowner wiring an outdoor antenna | Outdoor-rated RG6 | Better weather resistance than an indoor patch cable |
| Long run from antenna to TV area | RG11 or low-loss RG6 after checking distance | Lower loss may matter over long paths |
| Cable modem user | Provider-approved RG6 | Cable internet service can be sensitive to poor connectors and damaged cable |
| Legacy CCTV user | RG59 may be acceptable | Many older analog CCTV systems were designed around RG59 |
This is a practical starting point, not a substitute for local code, service provider rules, or installer requirements.
RG6 vs RG59 for TV
RG6 and RG59 are both 75-ohm coaxial cables, but they are not identical.
| Feature | RG6 | RG59 |
|---|---|---|
| Typical use | Modern TV, cable, satellite, antenna, cable modem | Older analog video, CCTV, short low-frequency runs |
| Approx. diameter | 6.9 mm / 0.27 in | 6.1 mm / 0.24 in |
| High-frequency performance | Usually better | Usually higher loss |
| Best for new TV wiring | Yes | Usually no |
| Flexibility | Moderate | Slightly easier to bend |
For digital TV, satellite, and cable service, RG6 is generally preferred. RG59 may work for short legacy video connections, but it is not the first choice for new installations.
When Should You Use RG11?
Use RG11 when the cable run is long and signal loss becomes a concern. RG11 is a 75-ohm coaxial cable like RG6, but it is thicker and typically has lower loss. If connector fit or cable diameter is the main issue, check the coax cable sizes and diameter chart.
RG11 is useful for:
| Scenario | Why RG11 Helps |
|---|---|
| Long outdoor antenna runs | Lower loss over distance |
| Long cable TV drops | Better signal retention than smaller coax |
| Underground or distribution runs | Suitable for long backbone paths when properly rated |
| Satellite distribution | Helpful where distance is significant |
RG11 is not usually needed for short indoor patch cables. It is harder to bend, harder to hide, and requires compatible connectors.
What Connector Does a TV Antenna Use?
In many TV, cable, satellite, and antenna setups, the connector is an F-type connector. It is the threaded metal connector with a center pin.
Some regions and devices may use IEC-style antenna connectors, sometimes called TV aerial connectors. The exact connector depends on the country, antenna, TV, and wall outlet.
| Connector | Common Use |
|---|---|
| F-type | Cable TV, satellite, cable modem, many TV antennas |
| IEC/PAL-style TV connector | Common in some regional TV antenna systems |
| BNC | CCTV, professional video, test equipment |
| RCA | Older analog video/audio devices |
For North American-style cable TV and cable modem connections, F-type is the most common.
Is HDMI the Same as Coaxial Cable?
No. HDMI and coaxial cable serve different roles.
| Cable | What It Carries | Common Use |
|---|---|---|
| Coaxial cable | RF signals for TV, antenna, satellite, or cable internet | Wall outlet to TV/cable box/modem |
| HDMI cable | Digital audio and video | Cable box, streaming device, or game console to TV |
A cable box may use coax from the wall and HDMI to the TV. These are not interchangeable.
Best TV Cable Wire by Scenario
| Use Case | Recommended Cable | Connector | Note |
|---|---|---|---|
| Basic cable TV | RG6 75-ohm | F-type | Standard choice |
| Digital TV antenna | RG6 75-ohm | F-type or regional connector | Use outdoor-rated cable outside |
| Satellite TV | RG6 75-ohm | F-type | Check satellite provider requirements |
| Long outdoor run | RG11 75-ohm | F-type | Lower loss, less flexible |
| Cable modem near TV area | RG6 75-ohm | F-type | Same cable family as cable TV |
| Legacy CCTV | RG59 75-ohm | BNC or RCA | Usually for analog systems |
Indoor, Outdoor, and Plenum Cable
Cable type is not only about RG number. Jacket rating matters.
| Rating or Style | When It Matters |
|---|---|
| Indoor cable | Short indoor TV or modem patch cables |
| Outdoor-rated cable | Exposed antenna, satellite, or exterior wall runs |
| Direct-burial cable | Underground installation |
| Plenum-rated cable | Air-handling spaces where code requires it |
| Riser-rated cable | Vertical building runs where required by code |
Do not use a basic indoor cable outdoors for a permanent installation. Sunlight, water, and temperature can damage the jacket over time.
Shielding: Standard vs Quad-Shield RG6
Shielding helps protect the signal from interference. RG6 cable may be sold as standard shielded, dual-shield, tri-shield, or quad-shield.
Quad-shield RG6 may be useful when:
- The cable runs near electrical noise
- The installation is in a dense signal environment
- The cable provider or satellite installer recommends it
- Signal leakage or ingress is a concern
Quad-shield cable is thicker and needs connectors designed for quad-shield RG6.
Common Mistakes When Buying TV Coax Cable
Do not buy a cable only because the connector fits. Check whether it is RG6, RG59, or RG11 and whether it is rated for the installation environment. If you are not sure the cable is actually coax, compare it with the visual checklist in what does a coax cable look like.
Avoid using damaged coax with bent center pins, crushed jackets, loose connectors, or sharp bends. Coaxial cable performance depends on its internal geometry, so physical damage can affect signal quality.
Also avoid assuming that a coaxial cable replaces HDMI. In a modern TV setup, coax often brings service to the cable box or TV tuner, while HDMI carries video from a device to the TV.
Installation Quality Matters More Than the Label Alone
A high-quality RG6 cable can still perform poorly if it is installed badly. Watch for:
- Loose F-type connectors
- Bent or recessed center pins
- Sharp bends or crushed cable
- Indoor cable used permanently outdoors
- Too many splitters in the signal path
- Old wall plates or splitters not rated for the signal range
- Corrosion on outdoor connectors
For cable internet or satellite service, a poor connector or splitter can cause intermittent problems even when the cable type is correct.
FAQ
What is the best coaxial cable for TV?
RG6 75-ohm coaxial cable with F-type connectors is the best general choice for modern TV, cable box, satellite, and antenna connections.
Is RG6 or RG59 better for TV?
RG6 is usually better for modern TV, satellite, cable, and antenna use because it generally has lower high-frequency loss than RG59.
Can I use RG59 for TV?
RG59 may work for short or older analog video runs, but RG6 is usually preferred for modern TV and cable installations.
What cable do I need for a TV antenna?
Most TV antenna installations use RG6 75-ohm coaxial cable. Outdoor antennas should use outdoor-rated cable.
What connector does a TV coax cable use?
Most TV coax cables use F-type connectors. Some regional antenna systems may use IEC-style TV connectors.
Is coaxial cable better than HDMI for TV?
They are used for different things. Coaxial cable carries antenna, cable, or satellite RF signals. HDMI carries digital audio and video from a device to a TV.
Related Reading
For the full cable type and sizing overview, see the Coaxial Cable Guide. If your TV setup also involves a modem, router, or MoCA adapter, compare the networking side in coaxial cable vs Ethernet cable.
