The VLF 20-3000MHz Ultra-wideband discone antenna covers an ultra-wide frequency range from the low-frequency 20MHz VLF band to the 3000MHz UHF band, perfectly combining low-frequency wave penetration and high-frequency broadband coverage. This antenna employs a classic disc-cone structure design, featuring stable vertical linear polarization, ultra-low VSWR across the entire frequency band, and uniform 360° horizontal signal radiation.
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Electrical specifications |
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Frequency Range(MHz) |
25-3000MHz |
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Impedance(ohm) |
50 |
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Gain(dBi) |
5.5dBi |
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Polarization |
Vertical |
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Radiation |
Omni |
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VSWR |
<1.5 |
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Maximum input power(W) |
20W(50mhz)200W(more than 140mhz) |
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Transmit band |
26-27-46-49-72-144-220-440-900-1290 MHz |
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50-144-430-904-1200Mhz |
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Mechanical specifications |
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Connector |
SO239 |
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Length |
1700 mm |
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Mast Diameter accepted |
25mm to 50mm |
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HEIGHT RADIALS |
6 lower radials 32”(81cm) |
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HEIGHT RADIALS |
8 upper radials 10.5”(26cm) |
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Requires mast |
not included |
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Material |
STAINLESS STEEL |
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Coaxial cable |
RG58A/U approx.15m with M-connectors/N-connectors |
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Operating temperature(℃) |
-40~80 |
- Ultra-wide Full-band Coverage (20MHz–3000MHz): Covers VLF, HF, VHF, UHF full frequency bands, realizing one antenna for multi-scene use.
- Omnidirectional Stable Radiation: 360° horizontal omnidirectional coverage with no signal blind spots, vertical linear polarization design matches mainstream communication equipment standards.
- Excellent Ultra-low VSWR Performance: Precisely impedance-matched structure design ensures flat standing wave ratio throughout the full frequency band, effectively reducing signal reflection and loss
- Easy Installation & Wide Compatibility: Equipped with standard N-type female connector and universal fixed mounting bracket, supporting pole mounting and wall mounting.
Miniaturized & High Gain: Optimized compact structural design abandons the bulky defect of traditional full-band antennas
This 20–3000MHz discone antenna breaks the frequency band limitation, taking into account VLF low-frequency strong penetration and UHF high-frequency high-speed transmission. With industrial-grade weather resistance, full-band low VSWR and omnidirectional stable coverage, it solves the problems of insufficient frequency band coverage, unstable signal and poor environmental adaptability of ordinary antennas. It is a cost-effective and high-performance professional outdoor RF antenna for industrial, commercial and monitoring fields.
