Adafruit
Adafruit 200 ft LMR-400 Coaxial Cable PL-259 50 ohm 2 in 1 Accessories
200 ft LMR-400 coaxial cable with PL-259 connectors, 50 ohm impedance and .41 in copper-clad aluminium centre conductor for ultra-low loss in CB, ham and marine radio
- Ultra-low loss with 0.41 in copper-clad aluminium centre conductor
- 20-year outdoor durability from UV-proof RF-PVC jacket
- Secure PL-259 clamp connectors with nickel-plated waterproof ends
- Adhesive-lined 2.2 in heat-shrink seals cable-to-connector joints
- 200 ft of 50 ohm LMR-400 coax for ham, CB and marine radio
Cable type and intended users
This 200 ft LMR-400 coaxial cable uses PL-259 UHF male connectors and a 50 ohm impedance. It is built for amateur radio, CB radio, two-way radio and SWR meter installations that need a low-loss feed line. The copper-clad aluminium centre conductor measures .41 inches in diameter.
Bundled connector and sealing details
The cable ships with nickel-plated PL-259 clamp connectors rather than crimp types for a more secure joint. Each end includes a 2.2 in adhesive-lined heat-shrink tube that seals the connector junction against moisture. The UV-proof RF-PVC jacket is rated for 20-year outdoor exposure.
Compatibility checks before ordering
Verify that your radio, antenna, surge protector or analyser presents a UHF female port for the PL-259 plug. Confirm the 50 ohm impedance matches the rest of your feed line and that the .41 inch centre conductor suits your expected power levels. Ensure the 200 ft length fits the planned cable run without excess slack.
Highlights
- Ultra-low loss with 0.41 in copper-clad aluminium centre conductor
- 20-year outdoor durability from UV-proof RF-PVC jacket
- Secure PL-259 clamp connectors with nickel-plated waterproof ends
- Adhesive-lined 2.2 in heat-shrink seals cable-to-connector joints
- 200 ft of 50 ohm LMR-400 coax for ham, CB and marine radio
Specifications
No published specifications for this item yet.
Questions about this item
Will the UV-proof RF-PVC jacket need replacement before the 20-year outdoor design life?
The jacket is designed for 20-year outdoor exposure in harsh environments, so it should not require replacement within that period under normal conditions.
At what point does signal loss become the limiting factor on a 200 ft run at 50 ohm?
The copper-clad aluminium centre conductor at .41 inch diameter gives lower loss than RG58 or 240 type coax, so attenuation stays low across the full 200 ft length.
How much heat does the cable generate when running at full power all day?
Coaxial cable itself does not generate measurable heat; the nickel-plated PL-259 connectors and adhesive-lined heat-shrink seals remain at ambient temperature during continuous operation.
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