RG400 cable

Cable

RG400

N FEMALE

End A

N FEMALE

$1.50

RP-SMA MALE

End B

RP-SMA MALE

$1.00

50 Ohm DC – 6 GHz

RG400 — N FEMALE to RP-SMA MALE

Custom RG400 cable assembly with N FEMALE and RP-SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $11.49
6 ft $26.49
25 ft $83.49
50 ft $158.49
100 ft $308.49
250 ft $758.49
Need a different length? Use the Cable Builder

Specs Summary

CableRG400
Diameter.195 INCH
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor70%
N FEMALE InterfaceType N threaded (MIL-STD-348)
RP-SMA MALE InterfaceReverse polarity SMA threaded

About This Assembly

RG400 Cable

RG-400 is a double-shielded, silver-plated PTFE coaxial cable built to MIL-C-17 specifications with a 0.195" outer diameter. Its construction mirrors RG-142 but with two braid shields for even greater shielding effectiveness. The standard cable for military and avionics applications requiring certified materials and traceable 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 military-spec RF interconnects and avionics signal routing. 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.

Other RG400 Configurations

N FEMALE to RP-SMA MALE on Other Cables