Dual CB Antenna Coax Cable 20FT Low Loss RG8X - Flexible
Dual CB Antenna Coax Cable 20FT Low Loss RG8X - Flexible
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Our review of the Dual CB Antenna Coax Cable 20FT finds it best suited for ham radio enthusiasts and mobile CB users who need a flexible, low loss run for dual-antenna installations. The single biggest reason to buy is its combination of a stranded pure copper center conductor and double shielding, which keeps signal loss minimal over a 20 ft run while remaining flexible enough to route in tight vehicle spaces. This review looks at materials, connectors, and real-world fit for installations where two antennas must share one transceiver.
Key Features
- Ultra low loss: Double shielding with aluminum foil and tinned copper braid reduces leakage and supports better signal transfer over the full 20 ft length.
- Stranded pure copper conductor: The stranded center conductor improves flexibility so the cable can be routed through trunks, engine compartments, or luggage racks without kinking.
- High shield performance: More than 95% shield coverage offers strong resistance to EMI and RFI for cleaner reception in noisy environments.
- Durable jacket: Waterproof FEP outer jacket lets the cable be exposed outdoors or in damp vehicle areas without immediate degradation.
- Removable UHF connectors: Two removable UHF (FME/PL259 style) connectors allow connecting two antennas to one transceiver for dual-antenna setups in tight spaces.
- Reinforced connector junctions: Extended heat shrink at the PL-259 and FME junctions helps prevent the connector from pulling off the cable under strain.
Who It's For
This cable is aimed at amateur radio operators and CB users who need a reliable dual-antenna coax solution for vehicles, trailers, or base installations where space is limited. Its flexibility and 20 ft length make it practical for routing through cramped areas like engine compartments, trunks, or luggage racks.
Those who need the absolute lowest possible loss for long HF runs or who require specialized connectors not listed here should look elsewhere, but for VHF/UHF, CB and mobile amateur use this cable strikes a useful balance of durability and signal protection.
Pros & Cons
Pros
- Low signal loss over 20 ft thanks to pure copper conductor and double shielding.
- Flexible stranded core simplifies installation in tight vehicle spaces.
- Waterproof FEP jacket and high shield coverage improve longevity outdoors.
- Removable UHF connectors enable two-antenna hookups to one transceiver.
Cons
- Connectors are PL-259 and FME styled; users requiring other legacy or proprietary connectors will need adapters.
- No length options included in this listing beyond the single 20 ft cable.
Specifications
| Cable type | RG8X (mini-8) dual coax |
| Length | 20 ft |
| Center conductor | Stranded pure copper |
| Shielding | Aluminum foil plus tinned copper braid, >95% coverage |
| Jacket | Waterproof FEP |
| Connectors included | PL-259 and removable FME/UHF style male connectors |
| Warranty | 1 year with 24-hour customer service |
Our Verdict
The Dual CB Antenna Coax Cable 20FT is a practical, value-oriented choice for mobile CB and amateur radio operators who need a flexible, low loss dual-antenna hookup. Its stranded pure copper core, robust double shielding and waterproof jacket make it well suited for vehicle installations where routing and durability matter, and the removable UHF connectors add installation flexibility.
Frequently Asked Questions
Can this cable be used outdoors?
Yes. The waterproof FEP jacket is designed for outdoor exposure and harsh vehicle environments.
Are the connectors fixed or removable?
The cable ships with removable UHF/FME style connectors and PL-259 male connectors for flexible installation choices.
Will this cable reduce interference?
Its double shielding and >95% shield coverage provide strong resistance to EMI and RFI, which helps reduce interference on VHF/UHF and CB bands.
Editor's Take
A practical, value-oriented 20 ft RG8X dual coax cable that delivers low loss and flexibility for mobile CB and amateur radio dual-antenna installations, backed by good shielding and a waterproof jacket.

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