T-Max Technometrics

Coaxial cable assemblies

CG240, RG-223, and RG8 options from 8 to 30 metres provide a practical choice between flexibility, signal loss, and cable-run length.

3 products found

Catalog code: CG240-Q-JW-N-JW-20

CG240 QMA to N-type · 20 m

A pair of 20 m CG240 cables with QMA and N-type connectors, 50 Ω impedance, and operating frequency up to 18 GHz.

Catalog code: RG223-Q-JW-N-JW-8

A pair of 8 m RG-223 cables with QMA and N-type connectors, double shielding, 50 Ω impedance, and frequency up to 4 GHz.

Catalog code: RG8-Q-JW-N-JW-30

A pair of 30 m RG8 cables with QMA and N-type connectors, 50 Ω impedance, and operating frequency up to 21 GHz.

Choose a kit by cable-run length, acceptable signal loss, required flexibility, and the interfaces on the equipment and antenna.

RG-223: The thinnest, lightest, and most flexible option, with double shielding. It has the highest attenuation in this range and is best for compact installation, frequent coiling, and 5–10 m runs.
CG240: A medium-thickness general-purpose option with good flexibility and approximately 30–40% lower loss than RG-223. It suits antenna systems, FPV ground stations, DJI, Alientech, and telecommunications equipment.
RG8: The thickest, heaviest, and least flexible option, with the lowest loss and higher power handling. It is intended for 20–50 m runs where maximum range and every decibel of signal matter.

QMA Quick Lock: A compact quick-release connection without a threaded coupling: the connector locks by pressing it into place. It is used on controllers, RF modules, amplifiers, and test equipment where cables need to be changed quickly.
N-type: A robust threaded connection resistant to vibration and outdoor conditions. It is widely used on external antennas, base stations, repeaters, Wi-Fi/LTE systems, and UAV equipment.
QMA → N-type arrangement: The QMA end connects to a controller, amplifier, or RF module, while the N-type end connects to an external antenna or professional RF equipment.

CG240 · 20 m: Two QMA-to-N-type cables, 50 Ω, up to 18 GHz, −40 to +80 °C.
RG-223 · 8 m: Two double-shielded QMA-to-N-type cables, 50 Ω, up to 4 GHz, −40 to +85 °C.
RG8 · 30 m: Two QMA-to-N-type cables, 50 Ω, up to 21 GHz, −40 to +80 °C.