Low Loss Coaxial Cables Feature Comparisons (400 and 600 Series)

Low Loss Coaxial Cables Feature Comparisons (400 and 600 Series)

The 400 and 600 series coaxial cables stand out for their sturdy performance and versatility. Coaxial cables are essential components in various applications, including ham radio, CB radio, and Wi-Fi.

The standard 400 series is known for its dependable signal transmission over intermediate distances, finding a compromise between flexibility and minimal signal loss. The 600 series offers even reduced attenuation, making it perfect for longer routes when signal strength is critical.

The Ultraflex variants come with a stranded center conductor and rubber jacket. Perfect for indoor and outdoor applications requiring multiple bending/flexing cycles. Both types are intended to serve a variety of applications, ranging from basic household installations to big industrial systems. Find a discussion on the same tackled here.

LMR 400 and 600 Cable Comparisons

The feature table below provides a full comparison of their strengths and applicability for many scenarios, allowing you to make an informed decision for your individual needs.

FeatureLMR400LMR 400 UltraFlexLMR600LMR 600 UltraFlex

Weight (lb/ft.)

0.068 0.088 0.131 0.165

Overall Diameter (in)


Min. Bend Radius (in)

 1.00 1.50

Impedance (Ohms)


Maximum Frequency (GHz)

8.0 6.06.0



Delay (ns/ft)


Voltage Withstand (Volts DC)


Jacket Spark (Volts RMS)


Operating Temperature (°F)

-40 to 185

Find a table comparing signal attenuation with cable length here.

Contact a signal specialist.

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