Hambid for Ham radio, scanners, DAB, Shortwave & CB radios

sales@radioworld.co.ukResponse in 24 hours
01922 414 796

Monday - Friday: 9:00am - 5:00pm

Saturday: 9:30am - 4:00pm

My basket: £0.00
Sirio Antennas
Sirio Gainmaster 1/2 Wave CB Base Station Antenna
Sirio Gainmaster 1/2 Wave CB Base Station Antenna
Sirio Antennas
Sirio Gainmaster 1/2 Wave CB Base Station Antenna

New version to the famous Sirio Gainmaster Antenna!

£109.96 (£91.63 exc. VAT)
Download a PDF document for Sirio Gainmaster 1/2 Wave CB Base Station Antenna
Fast UK
Add to wishlist
Brand:Sirio Antennas

Sirio's new Gain Master HW (Half Wave) is a fibreglass omni-directional base station antenna for 10m and 11m amateur bands and is made up of telescopic fibreglass tubes.

Engineered with the most advanced technologies it is completely manufactured in Italy, with high quality materials.

The design of the radiant element works like a central fed dipole so all RF currents on the radiator are in-phase so the ground plane radials are not necessary.

The coaxial coil at the bottom works like RF - choke for the optimum decoupling from mast and feeding line.


* Base station antenna, Omnidirectional

* High tech fibreglass for 10m and 11m

* 0.5λ Center feed vertical dipole

* Low radiation angle for excellent DX

* Fiberglass 3 section composite tube

* Ground Plane Independent (No radials required)


* Type: 1/2λ Center feeded vertical dipole

* Frequency Range: Tunable from 27.2 to 30 MHz

* Gain: 0 dBd, 2.15 dBi

* Bandwidth @ SWR ≤ 2: ≥ 1800 KHz @ 27.2 MHz

* Max. power: 500 Watts (CW) continuous

* Connector: UHF-female, PTFE insulator & gold plated central pin

* Materials: Whip made of white fiberlass three section composite tube,

Radiator made of copper wire and low loss coax cable, stainless steel

hardware, anodized AW6060 aluminium, UV stabilized thermoplastic

* Height (approx.): 5560 mm / 11.2 feet with bracket

* Weight (approx.): 2.6kg / 5.7 lb

* Packaging Dimensions: 1950 x 100 x 130mm / 77 x 4 x 5"

* Mounting mast: Ø 35-54 mm / Ø 1.4-2.1"

* Wind Resistance: Up to 160km/h, 100mi/h