RFC240 — RP-SMA MALE to SMA MALE

RFC240 cable

Cable

RFC240

RP-SMA MALE

End A

RP-SMA MALE

$1.00

SMA MALE

End B

SMA MALE

$1.00

Specs Summary

CableRFC240
Diameter.240 INCH
Impedance50 Ohm
FrequencyDC – 6 GHz
Velocity Factor83%
RP-SMA MALE InterfaceReverse polarity SMA threaded
SMA MALE InterfaceSMA threaded (MIL-STD-348)
50 Ohm DC – 6 GHz

RFC240 — RP-SMA MALE to SMA MALE

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Length Price
1 ft $16.08
6 ft $21.73
25 ft $43.20
50 ft $71.45
100 ft $127.95
250 ft $297.45
500 ft $579.95
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About This Assembly

RFC240 Cable

RFC-240 is a 0.240" 50-ohm low-loss coaxial cable delivering performance comparable to LMR-240 at a more accessible price, making it popular for installers who need reliable medium-distance cable runs. Well suited for cellular repeater installations, point-to-point wireless links, and access point feedlines up to 75 feet.

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.

SMA Connector

SMA (SubMiniature version A) is the most widely used RF connector in the industry, offering a threaded interface that provides a secure, low-reflection connection from DC to 18 GHz. Its compact size, 50-ohm impedance, and broad frequency range make it the default choice for WiFi equipment, software-defined radios, cellular antennas, GPS receivers, and RF test instruments.

Common Applications

This RP-SMA and SMA cable assembly is well suited for medium-length cellular and WiFi antenna runs at a value price point. The combination of reliable RP-SMA and 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.

RFC240 Signal Loss

Approximate attenuation at common RF frequencies.

Frequency Loss / 100 ft Loss / ft
100 MHz 2.5 dB 0.025 dB
450 MHz 5.4 dB 0.054 dB
900 MHz 7.8 dB 0.078 dB
1.8 GHz 11.3 dB 0.113 dB
2.4 GHz 13.1 dB 0.131 dB
5.8 GHz 21.5 dB 0.215 dB

Frequently Asked Questions

What is RFC240 coaxial cable used for?

RFC-240 is a 0.240" 50-ohm low-loss coaxial cable delivering performance comparable to LMR-240 at a more accessible price, making it popular for installers who need reliable medium-distance cable runs. Well suited for cellular repeater installations, point-to-point wireless links, and access point feedlines up to 75 feet.

What is the signal loss of RFC240?

At 1800 MHz, RFC240 has approximately 11.3 dB of loss per 100 ft (0.113 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 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.

Other RFC240 Configurations

RP-SMA MALE to SMA MALE on Other Cables