RG58 cable

Cable

RG58

BNC MALE

End A

BNC MALE

$2.00

SMA MALE

End B

SMA MALE

$1.00

50 Ohm DC – 1 GHz

RG58 — BNC MALE to SMA MALE

Custom RG58 cable assembly with BNC MALE and SMA MALE connectors. Every cable is hand-assembled, tested, and ships free.

Length Price
1 ft $15.98
6 ft $20.98
25 ft $39.98
50 ft $64.98
100 ft $114.98
250 ft $264.98
Need a different length? Use the Cable Builder

Specs Summary

CableRG58
Diameter.195 INCH
Impedance50 Ohm
FrequencyDC – 1 GHz
Velocity Factor66%
BNC MALE InterfaceBNC bayonet (MIL-STD-348)
SMA MALE InterfaceSMA threaded (MIL-STD-348)

About This Assembly

RG58 Cable

RG-58 is a classic flexible 50-ohm coaxial cable with a 0.195" outer diameter, offering an excellent balance of flexibility and performance at a low cost. Its braided shield provides good EMI rejection and its thin profile makes it easy to route through tight spaces. Common applications include amateur radio, CB radio, networking equipment connections, and general-purpose RF jumpers up to 25 feet.

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.

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 BNC and SMA cable assembly is well suited for amateur radio, CB radio, and general-purpose RF patch cables. The combination of reliable BNC 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.

RG58 Signal Loss

Approximate attenuation at common RF frequencies.

Frequency Loss / 100 ft Loss / ft
100 MHz 4.3 dB 0.043 dB
450 MHz 9.8 dB 0.098 dB
900 MHz 14.3 dB 0.143 dB
1.8 GHz 21.5 dB 0.215 dB
2.4 GHz 25.5 dB 0.255 dB
5.8 GHz 44 dB 0.44 dB

Frequently Asked Questions

What is RG58 coaxial cable used for?

RG-58 is a classic flexible 50-ohm coaxial cable with a 0.195" outer diameter, offering an excellent balance of flexibility and performance at a low cost. Its braided shield provides good EMI rejection and its thin profile makes it easy to route through tight spaces. Common applications include amateur radio, CB radio, networking equipment connections, and general-purpose RF jumpers up to 25 feet.

What is the signal loss of RG58?

At 1800 MHz, RG58 has approximately 21.5 dB of loss per 100 ft (0.215 dB/ft).

What frequency range does this assembly support?

This assembly is rated DC – 1 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 RG58 Configurations

BNC MALE to SMA MALE on Other Cables