RGU178 cable

Cable

RGU178

SMA MALE

End A

SMA MALE

$1.00

SO239 UHF Female

End B

SO239 UHF Female

$3.00

50 Ohm DC – 300 MHz

RGU178 — SMA MALE to SO239 UHF Female

Custom RGU178 cable assembly with SMA MALE and SO239 UHF Female connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $9.99
6 ft $14.49
25 ft $31.59
50 ft $54.09
100 ft $99.09
Need a different length? Use the Cable Builder

Specs Summary

CableRGU178
Diameter.06 INCH
Impedance50 Ohm
FrequencyDC – 300 MHz
Velocity Factor70%
SMA MALE InterfaceSMA threaded (MIL-STD-348)
SO239 UHF Female InterfaceUHF threaded (PL-259 / SO-239)

About This Assembly

RGU178 Cable

RGU-178 is an ultra-flexible variant of the RG-178 coaxial cable, retaining the 1.75mm form factor while featuring a stranded center conductor and flexible jacket for repeated bending. It excels in applications requiring both a small footprint and mechanical durability, such as wearable devices, rotating joints, and flexible test leads.

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.

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 SMA and UHF cable assembly is well suited for flexible pigtails for compact modules and repeated-bend applications. The combination of reliable SMA 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.

Other RGU178 Configurations

SMA MALE to SO239 UHF Female on Other Cables