RG142 — BNC MALE to RP-TNC MALE

RG142 cable

Cable

RG142

BNC MALE

End A

BNC MALE

$2.00

RP-TNC MALE

End B

RP-TNC MALE

$1.00

Specs Summary

CableRG142
Diameter.195 INCH
Impedance50 Ohm
FrequencyDC – 4 GHz
Velocity Factor70%
BNC MALE InterfaceBNC bayonet (MIL-STD-348)
RP-TNC MALE InterfaceReverse polarity TNC threaded
50 Ohm DC – 4 GHz

RG142 — BNC MALE to RP-TNC MALE

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Length Price
1 ft $16.18
6 ft $26.78
25 ft $67.06
50 ft $120.06
100 ft $226.06
250 ft $544.06
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About This Assembly

RG142 Cable

RG-142 is a double-shielded 50-ohm PTFE coaxial cable rated for operation from cryogenic temperatures up to +200°C with a 0.195" outer diameter. Its dual-shield construction provides excellent EMI rejection while the PTFE dielectric ensures stable electrical performance across a wide frequency range. The preferred choice for military, aerospace, and high-power RF applications.

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.

RP-TNC Connector

RP-TNC (Reverse Polarity TNC) uses the TNC threaded shell with reversed pin conventions, similar to RP-SMA. It is used on some commercial WiFi access points and outdoor CPE antennas, particularly in older Cisco and Linksys equipment, and offers better vibration resistance than RP-SMA in demanding outdoor environments.

Common Applications

This BNC and RP-TNC cable assembly is well suited for high-temperature and high-power military or aerospace RF assemblies. The combination of reliable BNC and RP-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.

RG142 Signal Loss

Approximate attenuation at common RF frequencies.

Frequency Loss / 100 ft Loss / ft
100 MHz 3.8 dB 0.038 dB
450 MHz 8.5 dB 0.085 dB
900 MHz 12.5 dB 0.125 dB
1.8 GHz 18.5 dB 0.185 dB
2.4 GHz 21.5 dB 0.215 dB
5.8 GHz 37 dB 0.37 dB

Frequently Asked Questions

What is RG142 coaxial cable used for?

RG-142 is a double-shielded 50-ohm PTFE coaxial cable rated for operation from cryogenic temperatures up to +200°C with a 0.195" outer diameter. Its dual-shield construction provides excellent EMI rejection while the PTFE dielectric ensures stable electrical performance across a wide frequency range. The preferred choice for military, aerospace, and high-power RF applications.

What is the signal loss of RG142?

At 1800 MHz, RG142 has approximately 18.5 dB of loss per 100 ft (0.185 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 RG142 Configurations

BNC MALE to RP-TNC MALE on Other Cables