RFC400 cable

Cable

RFC400

BNC MALE

End A

BNC MALE

$2.00

TNC MALE

End B

TNC MALE

$1.00

50 Ohm DC – 4 GHz

RFC400 — BNC MALE to TNC MALE

Custom RFC400 cable assembly with BNC MALE and TNC MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $20.98
6 ft $28.48
25 ft $56.98
50 ft $94.48
100 ft $169.48
250 ft $394.48
500 ft $769.48
Need a different length? Use the Cable Builder

Specs Summary

CableRFC400
Diameter.400 INCH
Impedance50 Ohm
FrequencyDC – 4 GHz
Velocity Factor85%
BNC MALE InterfaceBNC bayonet (MIL-STD-348)
TNC MALE InterfaceTNC threaded (MIL-STD-348)

About This Assembly

RFC400 Cable

RFC-400 is a cost-effective 0.400" 50-ohm low-loss coaxial cable serving as a value-oriented alternative to LMR-400. It delivers strong performance on runs from 50 to 200 feet and is popular for cellular repeater trunk cables, outdoor antenna feedlines, and budget-conscious infrastructure deployments.

BNC Connector

BNC (Bayonet Neill–Concelman) is a quick-connect RF connector featuring a bayonet locking mechanism for fast mating and unmating, rated from DC to 4 GHz. Its ease of use makes it standard in test and measurement equipment, video distribution, two-way radio accessories, and laboratory bench setups where cables are frequently connected and disconnected.

TNC Connector

TNC (Threaded Neill–Concelman) is the threaded version of BNC, offering improved performance up to 11 GHz and better vibration resistance through its screw coupling. It is commonly used in mobile radio antennas, avionics, and outdoor installations where BNC's bayonet lock would not provide sufficient mechanical security.

Common Applications

This BNC and TNC cable assembly is well suited for cost-effective long antenna runs, cellular repeater trunk cables, and outdoor feedlines. The combination of reliable BNC and TNC 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.

RFC400 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 RFC400 coaxial cable used for?

RFC-400 is a cost-effective 0.400" 50-ohm low-loss coaxial cable serving as a value-oriented alternative to LMR-400. It delivers strong performance on runs from 50 to 200 feet and is popular for cellular repeater trunk cables, outdoor antenna feedlines, and budget-conscious infrastructure deployments.

What is the signal loss of RFC400?

At 1800 MHz, RFC400 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 – 4 GHz, limited by the lowest-rated component across the cable and connectors.

What is a BNC connector?

BNC (Bayonet Neill–Concelman) is a quick-connect RF connector featuring a bayonet locking mechanism for fast mating and unmating, rated from DC to 4 GHz. Its ease of use makes it standard in test and measurement equipment, video distribution, two-way radio accessories, and laboratory bench setups where cables are frequently connected and disconnected.

Other RFC400 Configurations

BNC MALE to TNC MALE on Other Cables