Cable TV & Satellite

Cable TV & Satellite Coax Extension Cables

Custom-length coax eliminates the mess of coiled excess cable and avoids the signal loss of splitters. Whether you're extending a satellite run, replacing a damaged cable, or setting up a new OTA antenna, a properly built coax makes all the difference.

Quick Pick — Best Cable by Run Length

Not sure what to order? Start here.

RG-58
Short patch RG-58

Flexible and affordable for behind-TV connections and short runs

Build with RG-58 →
RFC-240
Medium run RFC-240

Low-loss for attic-to-TV and room-to-room runs

Build with RFC-240 →
LMR-240
Long run LMR-240

Premium low-loss for rooftop OTA antennas and long home runs

Build with LMR-240 →

Signal Loss Comparison

dB loss per 100 feet — lower is better. Multiply by your run length and divide by 100.

Cable 100 MHz (FM/VHF) 450 MHz (UHF TV) 900 MHz (Satellite) 2.4 GHz (Satellite)
RG-58 4.3 9.8 14.3 25.5
RFC-240 2.5 5.4 7.8 13.1
LMR-240 2.4 ✓ 5.3 ✓ 7.5 ✓ 12.6 ✓

Values are approximate. ✓ indicates lowest loss for that frequency.

All Recommended Cables

RG-58

RG-58

$1.00/ft
Low loss:

Flexible and affordable for short TV and antenna patch cables.

Best for: Short patch cables, behind-TV connections

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RFC-240

RFC-240

$1.25/ft
Low loss:

Low-loss .240 for longer OTA and satellite runs.

Best for: Attic OTA antennas, room-to-room runs

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LMR-240

LMR-240

$1.75/ft
Low loss:

Premium low-loss for long rooftop antenna feedlines.

Best for: Rooftop OTA antennas, long home runs

Build → Shop all →

Popular Builds

Most common connector combinations on rg58. Click to configure length and order.

F MALE F MALE

F-Male to F-Male

From $16.28

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F MALE F FEMALE

F-Male to F-Female

From $16.28

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Frequently Asked Questions

What coax cable is used for cable TV?
Cable TV and satellite systems use F-type connectors on 75-ohm coax (RG-6 or RG-59). For shorter patch cables and custom assemblies at 50 ohm, RG-58 and LMR-240 work well.
How do I extend my satellite or cable TV connection?
Order a single custom-length coax cable with F-male connectors on both ends to reach from your wall plate or dish directly to your receiver — no barrel couplers or splitters needed.
What is the best cable for an OTA antenna?
For rooftop OTA antennas, LMR-240 or RFC-240 provide low loss from the antenna down to your TV. For short attic-to-TV runs under 25 feet, RG-58 is a cost-effective choice.

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