Sirio THUNDER Base CB Antenna


Experience exceptional performance and unmatched reliability with the Sirio THUNDER Base CB Antenna. Engineered to perfection, this cutting-edge antenna is designed for all enthusiasts who demand professional-grade equipment.


Featuring linear vertical polarization, the Sirio THUNDER ensures optimal signal transmission and reception across a wide frequency range of 25 – 29 MHz. With no tuning required, enjoy hassle-free installation and seamless connectivity like never before.

Unleash its power with a remarkable gain of 0 dBd – 2.15 dBi, allowing you to amplify your communications without compromise. Whether you’re engaging in short-range conversations or exploring long-distance connections, this antenna maintains crystal-clear clarity throughout.

Pushing boundaries in power handling, the Sirio THUNDER can withstand up to 100 Watts (CW) continuously and an impressive 300 Watts (CW) for shorter durations. Be it intense communication sessions or emergency situations — experience uninterrupted operation that caters to your unique needs.

Crafted with precision using top-of-the-line materials such as aluminium, copper, galvanized steel, and nylon; this sturdy construction guarantees durability that stands the test of time. No matter what challenges come your way – adverse weather conditions or rugged terrains – be assured that your antenna will deliver unwavering performance at all times.

With a compact height of only 32 cm and weighing just 700 g, easily mount this lightweight powerhouse on any surface without compromising on its effectiveness. Perfectly blending efficiency with convenience, take it along wherever.


PolarizationLinear Vertical
Frequency Range25 – 29 MHz No tuning required
Gain0 dBd – 2.15 dBi
Bandwidth5 MHz @ SWR 2
Power100 Watts (CW) continuous300 Watts (CW) short time
ConnectorUHF-female (SO-239)
MaterialsAluminium, Copper, Galvanized steel, Nylon
Height 32 cm
Weight 700 g

Additional information

Weight1 kg