RG174 — FME FEMALE to SO239 UHF Female

RG174 cable

Cable

RG174

FME FEMALE

End A

FME FEMALE

$2.00

SO239 UHF Female

End B

SO239 UHF Female

$3.00

Specs Summary

CableRG174
Diameter.1 INCH
Impedance50 Ohm
FrequencyDC – 300 MHz
Velocity Factor66%
FME FEMALE InterfaceFME threaded
SO239 UHF Female InterfaceUHF threaded (PL-259 / SO-239)
50 Ohm DC – 300 MHz

RG174 — FME FEMALE to SO239 UHF Female

✓ In stock • Ships next business day

Length Price
1 ft $15.48
6 ft $18.88
25 ft $31.80
50 ft $48.80
100 ft $82.80
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About This Assembly

RG174 Cable

RG-174 is an ultra-thin, highly flexible 50-ohm coaxial cable with a 0.100" outer diameter — one of the smallest coax types available. Its stranded center conductor and single-braid shield make it ideal for tight internal wiring where space is at a premium. Typical uses include GPS antenna pigtails, WiFi module connections, and short adapter leads inside enclosures.

FME Connector

FME (For Mobile Equipment) is a miniature threaded RF connector designed for mobile and vehicle-mounted antenna applications, particularly at GSM, CDMA, and FM frequencies. Its small size and robust threaded coupling make it common on vehicle-mount antenna mounts, cellular signal boosters, and mobile broadband modems.

UHF Connector

The UHF connector (also known as PL-259 male / SO-239 female) is a large, low-cost RF connector designed in the 1930s for HF and VHF frequencies. Despite its name, its practical usable range is below 300 MHz due to its non-constant impedance design. It remains extremely popular in amateur radio (HF through VHF), CB radio, and marine radio applications.

Common Applications

This FME and UHF cable assembly is well suited for GPS and WiFi module pigtails, short flexible adapter leads, and internal device wiring. The combination of reliable FME and UHF 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.

RG174 Signal Loss

Approximate attenuation at common RF frequencies.

Frequency Loss / 100 ft Loss / ft
100 MHz 6.6 dB 0.066 dB
450 MHz 14.5 dB 0.145 dB
900 MHz 21.5 dB 0.215 dB
1.8 GHz 32 dB 0.32 dB
2.4 GHz 38 dB 0.38 dB
5.8 GHz 65 dB 0.65 dB

Frequently Asked Questions

What is RG174 coaxial cable used for?

RG-174 is an ultra-thin, highly flexible 50-ohm coaxial cable with a 0.100" outer diameter — one of the smallest coax types available. Its stranded center conductor and single-braid shield make it ideal for tight internal wiring where space is at a premium. Typical uses include GPS antenna pigtails, WiFi module connections, and short adapter leads inside enclosures.

What is the signal loss of RG174?

At 1800 MHz, RG174 has approximately 32 dB of loss per 100 ft (0.32 dB/ft).

What frequency range does this assembly support?

This assembly is rated DC – 300 MHz, limited by the lowest-rated component across the cable and connectors.

What is a FME connector?

FME (For Mobile Equipment) is a miniature threaded RF connector designed for mobile and vehicle-mounted antenna applications, particularly at GSM, CDMA, and FM frequencies. Its small size and robust threaded coupling make it common on vehicle-mount antenna mounts, cellular signal boosters, and mobile broadband modems.

Other RG174 Configurations

FME FEMALE to SO239 UHF Female on Other Cables