CB/10 m base antennas — Sirio
Sirio Monsoon 5/8 λ ground plane
5/8 λ ground plane vertical antenna 26–30 MHz with base tuning, 3.35 dBi, 1,000 W, 7.18 m
The Sirio Monsoon is a 5/8 λ ground plane base station antenna for the 26–30 MHz range (CB and 10 m), with a base tuning system and a continuous power rating of 1,000 W.
Key features
Base tuning
Convenient frequency adjustment.
1,000 W
Continuous, 3,000 W for short periods.
5/8 λ
3.35 dBi gain.
Specifications
| Type | 5/8 λ ground plane, omnidirectional, vertical |
| Frequency | 26–30 MHz (tunable) |
| Gain | 1.2 dBd / 3.35 dBi |
| Bandwidth | 1.3 MHz (SWR 2) |
| Maximum power | 1,000 W CW continuous · 3,000 W CW short-term |
| Connector | SO-239 |
| Materials | Aluminium, brass, galvanised steel, UV-resistant thermoplastic |
| Height | approx. 7,180 mm |
| Weight | approx. 3,000 g |
| Mounting | On mast |
| Sirio code | 2100601.00 |
HamRadioShop | Base antennas
