Sirio SB 3 U M-1 antenna operates within the frequency range of 155.8 to 160.1 MHz, specifically designed for marine applications.
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Sirio Antennas

Sirio SB 3 U M-1 antenna operates within the frequency range of 155.8 to 160.1 MHz, specifically designed for marine applications.

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£39.95
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Product code: SPA-SB3S-18
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Item CostFinance OptionDepositMonthly PaymentsTotal Cost
£39.95
12 Months 14.9% APR
£3.99
£3.44
£45.31
£39.95
18 Months 14.9% APR
£3.99
£2.30
£45.31
£39.95
24 Months 14.9% APR
£3.99
£1.72
£45.31
£39.95
36 Months 14.9% APR
£3.99
£1.15
£45.31
£39.95
48 Months 14.9% APR
£3.99
£0.86
£45.31
£39.95
12 Months 19.5% APR
£3.99
£3.58
£46.96
£39.95
18 Months 19.5% APR
£3.99
£2.39
£46.96
£39.95
24 Months 19.5% APR
£3.99
£1.79
£46.96
£39.95
36 Months 19.5% APR
£3.99
£1.19
£46.96
£39.95
48 Months 19.5% APR
£3.99
£0.90
£46.96

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Sirio SB 3 U M-1 antenna operates within the frequency range of 155.8 to 160.1 MHz, specifically designed for marine applications.

Sirio SB 3 U M-1 antenna operates within the frequency range of 155.8 to 160.1 MHz, specifically designed for marine applications.


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The Sirio SB 3 U M-1 antenna operates within the frequency range of 155.8 to 160.1 MHz, specifically designed for marine applications. It boasts a 3/4 wave configuration that eliminates the need for a ground plane. One of its key features is its protection from static discharges with a DC-Ground mechanism in place.

For easy installation, the antenna comes equipped with a durable stainless steel bracket suitable for mounting on the mast top of marine vessels. The whip of the antenna is constructed from high-quality brass and copper materials, safeguarded by a protective fibreglass tube to ensure longevity and performance in harsh marine environments.

With a frequency range of 156 to 163 MHz and a gain ranging from 2 dBd to 4.15 dBi, the Sirio SB 3 U M-1 antenna offers reliable signal reception and transmission capabilities. Additionally, it provides a bandwidth of 5.5 MHz centred around 158 MHz, ensuring stable communication within the specified frequency range.

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