75 Foot LMR-400 N Male to N Female Coax Extension - Low Loss Outdoor

In this review the 75 ft LMR-400 N male to N female extension is evaluated for amateur radio operators, WLAN installers and anyone needing a long, rugged feed line. The bottom line: this cable delivers low loss performance and strong outdoor durability, making it a practical choice when distance and signal retention matter. Its UV resistant polyethylene jacket and flexible construction mean installers get a long-lived run that resists abrasion and stays manageable during routing, which is the single biggest reason to buy.

Key Features

• UV Resistant Polyethylene Jacket: protects the cable from sun exposure for long outdoor life expectancy, reducing the need for frequent replacements.
• Flexible Outer Conductor: allows tight bend radius during installation so it can be routed through conduits and around masts more easily.
• Low Loss Performance: preserves RF energy over the 75 ft run, making it suitable for WiFi, cellular and ham radio where minimizing attenuation matters.
• High RF Shielding: multi-ply bonded foil outer conductor offers much better shielding than single-shield cables, reducing interference risk.
• N Male to N Female Connectors: standard N-type interfaces provide reliable mechanical and electrical connections for many antenna and radio systems.

Who It's For

This cable is aimed at hobbyists and professionals who need a robust, low loss coax for outdoor antenna feeds up to 75 ft, including ham radio operators, WLAN installers and CB or WiFi projects. It is particularly useful when weather resistance, flexibility and shielding are priorities.

Those who need ultra-high power handling, permanent semi-rigid hard-line for very long utility runs, or specialty connectors not offered here should look elsewhere; this product focuses on a balance of flexibility, low loss and outdoor durability rather than extreme power or bespoke connector options.

Pros & Cons

Pros

• Durable UV resistant PE jacket gives long outdoor life and abrasion resistance.
• Flexible design allows tight bends and simpler routing in tight installations.
• Low loss characteristics maintain signal strength over the 75 ft extension.
• High shielding performance reduces susceptibility to external RF noise.

Cons

• Heavier and thicker than small coax types, so it requires more effort to secure and support along a run.

Specifications

Cable Standard	TIMES MICROWAVE LMR-400
Length	75 ft
Impedance	50 Ohm
Connectors	N Male to N Female
Jacket Material	UV resistant polyethylene (PE)
Typical Uses	Ham radio, WLAN, CB radio, WiFi antenna feeders

Our Verdict

This 75 ft LMR-400 extension is a solid value for anyone needing a weatherproof, low loss feed line with reliable connectors. It balances flexibility and shielding to suit outdoor antenna work, making it a sensible buy for ham operators and WLAN installers who want a durable run without moving to hard-line solutions.

Frequently Asked Questions

Is this cable suitable for outdoor mounting?
Yes. The UV resistant polyethylene jacket is designed for outdoor exposure and long life in sunlight.

What connectors are fitted?
The cable comes fitted with an N Male on one end and an N Female on the other for common antenna and radio interfaces.

How far is this cable effective for WiFi or cellular?
LMR-400 is typically excellent for WiFi and cellular runs in the 50-70 ft range and remains usable for various HF/UHF/VHF installations up to longer distances.