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CB Coax Cable

CB coax cable is necessary to connect your antenna to your radio. The coax doesn't actually connect directly to your antenna, but rather to the antenna mount. This allows the center wire of the coax to remain isolated from the outer ground. 

There are some important things to remember when choosing a CB antenna coax:

Make sure the connectors on your coax match your antenna mount. You will always have at least one of the big, screw-on PL259 connectors on one of the coax, but the other end can have a PL259, center and ground wires with lug connectors, or single ring connectors like Firestik's Firering.

Use a co-phase harness for dual antenna installations. A single coax is 50 ohms.  A co-phase harness is 72 ohms before it splits into 50 ohms for each antenna. This is important for a good SWR. If you try to connect two single coax lengths to a T connector for dual antennas, you may run into high SWR issues.

Use NGP cable for NGP antennas. Using no ground plane antenna cable for a traditional antenna (and visa versa) will give you high SWR problems. 

Browse our selection of CB Coax cable from brands like FireStik and Procomm. If you need help with choosing the right cable, or simply a new CB antenna, we suggest reading our handy guide to choosing the best CB antenna. It has helped many of our customers find the right products for them.

$16.95

Premium grade mini-8 coax cable for your ultimate mobile radio installation from Kalibur!

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$4.49

coax connector for Procomm coax cable assembly

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$5.86

High quality RG8X Mini-8 coax cable offers outstanding performance for CB or 10 meter radios. Flexible yet strong Mini-8 is often the cable of choice for routing inside vehicle chassis and cabs. Kalibur offers quality processed RG8X coaxial cables complete with 100% tested, hand soldered dual PL259 connectors for convenience. You know that your coax will offer low loss, low noise with your CB radio installation – the coax will be one less problem to worry about when using high quality RG8X cable.

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$15.99

High quality RG8X coax in 6 foot length that excellent for jumper and mobile applications. With 2 PL259 connectors it’s easy to use right out of the box.

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$19.94

The ProComm Dual CB Antenna Coax is constructed with RG59AU CO-phase cable, and screw on UHF adapters that make this cable flexible and easy to route when installing your Dual radio antennas.

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$26.24

ProComm’s Armor Flex dual shielded coax is every bit as tough as it looks. The unique exterior braid provides an extra level of interference protection not seen on most cables. A premium coaxial cable specifically designed for dual CB antenna installations. Available in 12 or 18 feet finished cable lengths and ready to install.


$8.39

Sometimes shorter is best. ProComm’s 3 foot plug to plug CB coax provides the ultimate ultra-high quality super mini 8 coax for low loss applications. 100% tested ensures that this cable will work. The perfect jumper cable for CB and Ham SWR tuning, the AF3P is perfect anytime you need a 3 foot male to male coax of the utmost quality.

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$20.99

The decision is an easy one. Use the best coax possible for your CB, 10 meter, or Ham radio. ProComm offers its high quality double braid coax complete with dual hand soldered PL259 terminators. You get hand tighten connectors, top quality American made coax that just works right! Be sure you demand ProComm AF18P the next time you need high quality coax.

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$26.24

ProComm RG8X coax cable with both a Weather boot protected PL259 and removable PL259 bolsters easy installation for your radio setup.


$10.49
9 foot coax used for connecting antenna mounts with SO239 connectors to car stereos.  Also used in some dual antenna setups.
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$15.74

The CBLS009 is FireStik’s replacement Y connector for MU9R18 dual antenna cable harness. Essential part for plug n’ play connection of dual CB antennas the radio unit

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$11.54

ProComm manufactures quality communication products for CB, Amateur, and two-way communications. ProComm’s CB Coax Cable RG8X with PL259 and Ring Terminals is the go to coax for single antenna installations. The RG8X mini-8 coax provides a highly flexible, easy to route cable for mobile installs and is available in lengths to suit any installer’s desire.

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