● Frequency 18 MHz. ● Impedance 50 Ohms. ● Whip 17.7 ph stainless. ● SWR 1.5:1.
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With over three decades of hands-on experience, we design, engineer, and build every antenna at our dedicated factory in the heart of Birmingham. When you choose Sigma, you're not just buying a product.
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This is a mono-band HF Whip antenna, tuned for 11m 27MHz band. Height of the antenna 2.5m approx. Field tunable for lowest VSWR, twin stainless grub screw whip holder and standard 3/8" thread stud fitting.
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The top whip may also be adjusted for fine tuning and optimizing the VHF/UHF performance. Maximum length of the antenna is 1.77m and maximum power handling is 130W. Length:0.5m – 1.77m / Weight:300g.
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Thunderpole Mini Shuttle. The Mini Shuttle features a precision-engineered base load coil, pre-tuned for low SWR. Built with a durable tapered stainless steel whip and a 3/8 fitting, it’s compatible with standard 3/8 mounts.
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There are 11 models in our range, starting from 4m, right up to 80m. They are designed to operate on the phone portion of the Band, Bandwidth and VSWR. VSWR at resonance should be 1.5:1 or less when properly matched.
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Frequency: 7MHz. Bandwidth: 60 KHz. VSWR: 1.5:1or better.
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This is a mono-band HF Whip antenna, tuned for 17m 18MHz band. Height of the antenna 2.5m approx. Field tuneable for lowest VSWR, twin stainless grub screw whip holder and standard 3/8" thread stud fitting.
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