RG58 cable

Cable

RG58

MCX MALE

End A

MCX MALE

$1.00

RP-SMA MALE

End B

RP-SMA MALE

$1.00

50 Ohm DC – 1 GHz

RG58 — MCX MALE to RP-SMA MALE

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

Length Price
1 ft $14.98
6 ft $19.98
25 ft $38.98
50 ft $63.98
100 ft $113.98
250 ft $263.98
Need a different length? Use the Cable Builder

Specs Summary

CableRG58
Diameter.195 INCH
Impedance50 Ohm
FrequencyDC – 1 GHz
Velocity Factor66%
MCX MALE InterfaceMCX snap-on (CECC 22220)
RP-SMA MALE InterfaceReverse polarity SMA threaded

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.

MCX Connector

MCX (Micro Coaxial) is a snap-on RF connector approximately 30% smaller than SMB, designed for compact equipment requiring frequent connections in a small footprint. Rated to 6 GHz, MCX is commonly used in GPS receivers, automotive telematics modules, handheld communication devices, and compact measurement instruments.

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.

Common Applications

This MCX and RP-SMA cable assembly is well suited for amateur radio, CB radio, and general-purpose RF patch cables. The combination of reliable MCX and RP-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 MCX connector?

MCX (Micro Coaxial) is a snap-on RF connector approximately 30% smaller than SMB, designed for compact equipment requiring frequent connections in a small footprint. Rated to 6 GHz, MCX is commonly used in GPS receivers, automotive telematics modules, handheld communication devices, and compact measurement instruments.

Other RG58 Configurations

MCX MALE to RP-SMA MALE on Other Cables