LMR400 Times cable

Cable

LMR400 Times

N FEMALE

End A

N FEMALE

$1.50

RP-SMA MALE

End B

RP-SMA MALE

$1.00

50 Ohm DC – 6 GHz

LMR400 Times — N FEMALE to RP-SMA MALE

Custom LMR400 Times cable assembly with N FEMALE and RP-SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $25.99
6 ft $35.99
25 ft $73.99
50 ft $123.99
100 ft $223.99
250 ft $523.99
500 ft $1,023.99
Need a different length? Use the Cable Builder

Specs Summary

CableLMR400 Times
Diameter.400 INCH
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor85%
N FEMALE InterfaceType N threaded (MIL-STD-348)
RP-SMA MALE InterfaceReverse polarity SMA threaded

About This Assembly

LMR400 Times Cable

LMR-400 is the industry-standard low-loss 50-ohm coaxial cable from Times Microwave with a 0.400" outer diameter, offering less than half the signal loss of RG-8 at 2.4 GHz. The go-to cable for base station feedlines, cellular repeater installations, antenna runs from 50 to 200 feet, and any fixed installation requiring reliable broadband performance.

N Connector

Type N is a threaded RF connector rated from DC to 18 GHz with a durable weatherproof design, making it the preferred interface for outdoor antenna installations, cellular base stations, and commercial wireless infrastructure. Its larger size compared to SMA allows higher power handling and the threaded coupling resists vibration, making it suitable for mobile and fixed outdoor applications.

RP-SMA Connector

RP-SMA (Reverse Polarity SMA) uses the SMA threaded coupling mechanism but with the male/female pin convention reversed — the jack has a pin and the plug has a socket. Originally standardized to prevent connection of uncertified antennas to consumer WiFi equipment, RP-SMA is now the dominant connector on commercial WiFi routers, access points, and 2.4/5 GHz antennas.

Common Applications

This N and RP-SMA cable assembly is well suited for cellular repeater installations, base station feedlines, and long outdoor antenna runs. The combination of reliable N and RP-SMA connectors and custom-cut cable length makes it a practical choice for both field installations and bench setups. Every assembly is hand-terminated, continuity tested, and ships free within the USA.

LMR400 Times Signal Loss

Approximate attenuation at common RF frequencies.

Frequency Loss / 100 ft Loss / ft
100 MHz 1.5 dB 0.015 dB
450 MHz 3.3 dB 0.033 dB
900 MHz 4.7 dB 0.047 dB
1.8 GHz 6.8 dB 0.068 dB
2.4 GHz 7.9 dB 0.079 dB
5.8 GHz 13 dB 0.13 dB

Frequently Asked Questions

What is LMR400 Times coaxial cable used for?

LMR-400 is the industry-standard low-loss 50-ohm coaxial cable from Times Microwave with a 0.400" outer diameter, offering less than half the signal loss of RG-8 at 2.4 GHz. The go-to cable for base station feedlines, cellular repeater installations, antenna runs from 50 to 200 feet, and any fixed installation requiring reliable broadband performance.

What is the signal loss of LMR400 Times?

At 1800 MHz, LMR400 Times has approximately 6.8 dB of loss per 100 ft (0.068 dB/ft).

What frequency range does this assembly support?

This assembly is rated DC – 6 GHz, limited by the lowest-rated component across the cable and connectors.

What is a N connector?

Type N is a threaded RF connector rated from DC to 18 GHz with a durable weatherproof design, making it the preferred interface for outdoor antenna installations, cellular base stations, and commercial wireless infrastructure. Its larger size compared to SMA allows higher power handling and the threaded coupling resists vibration, making it suitable for mobile and fixed outdoor applications.

Other LMR400 Times Configurations

N FEMALE to RP-SMA MALE on Other Cables