Marine CB antennas — Sirio
Sirio TA27 no ground plane
Base-loaded marine CB/10 m antenna, 24.5–29.5 MHz with no tuning, 1.12 m, wall mounting
The Sirio TA27 is a base-loaded marine CB antenna that requires no ground plane. It covers 24.5 to 29.5 MHz without tuning and is 1.12 m tall.
Key features
No ground plane
Suitable for boats.
No tuning
24.5–29.5 MHz, bandwidth ≥ 5.5 MHz.
17/7 PH stainless
Chrome-plated brass and fiberglass.
Specifications
| Type | Base-loaded, omnidirectional, vertical |
| Frequency | 24.5–29.5 MHz, no tuning |
| Systems | CB 27 MHz, 10 m amateur |
| Bandwidth | ≥ 5.5 MHz (SWR ≤ 2) |
| Maximum power | 15 W CW continuous · 50 W CW for short periods |
| Grounding | DC shorted to ground |
| Connector | SO-239 |
| Materials | Chrome-plated brass, 17/7 PH stainless steel, fiberglass, nylon |
| Height | about 1120 mm |
| Weight | about 360 g |
| Mounting | Via holes, on a wall |
HamRadioShop | Marine antennas
