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High gain Dual-band 144/430MHz VHF antenna GLSDR2

Dual-Band 144/430MHz Support – Ideal for amateur radio (2m/70cm bands) and professional communication systems.
  • GLSDR2

  • Asialeren

  • 8517710000

  • GLSDR2.pdf

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Electrical specifications

Frequency Range(MHz)

144/430MHZ

Impedance(ohm)

50

Gain (dBi)

2.15/2.5dbi

Polarization

Vertical

VSWR

≤1.5

Maximum input power (W)

50

Mechanical specifications


Connector

PL259

Height-mm

385mm

Radome Material

Steel

Color

black

Weight-KG

0.3

Operating temperature (℃)

-40~80

Product Introduction

  1. Dual - Band Frequency Coverage:The GLSDR2 antenna operates across two important VHF frequency bands, 144MHz and 430MHz. This dual - band functionality makes it highly versatile, suitable for a wide range of applications that rely on these frequencies, such as amateur radio, public safety, and industrial communication.

  2. Sufficient Gain for Signal Boost:With a gain ranging from 2.15dBi to 2.5dBi, the GLSDR2 can effectively enhance incoming signals. This gain is beneficial for extending the communication range and improving the signal quality, enabling reliable communication over a reasonable distance.

  3. Stable Impedance and Low VSWR:It has an impedance of 50Ω and a VSWR of ≤1.5. The stable impedance ensures efficient power transfer between the antenna and connected devices, while the low VSWR reduces signal reflection. This combination results in a more stable connection and better - quality signal transmission.

  4. Vertical Polarization for Reduced Interference:The vertical polarization of the GLSDR2 helps to minimize interference from horizontally polarized signals. In environments with electromagnetic clutter, such as urban areas or near large - scale electrical equipment, this polarization type ensures a more stable communication link.

  5. Durable Construction and Wide - range Operation:Made of steel radome material, the GLSDR2 is durable and can withstand various environmental conditions. Steel provides good protection for internal components. With a weight of 0.3 kg and a height of 385mm, it is relatively compact and easy to install. Additionally, its operating temperature range of - 40℃ to 80℃ makes it suitable for use in different climates and environments.

Application scenarios

  1. Amateur Radio Communication:Amateur radio operators can use the GLSDR2 for VHF communication on the 144MHz and 430MHz bands. Its dual - band design and sufficient gain allow them to connect with other operators over longer distances and in different communication scenarios.

  2. Public Safety Communication:Police, fire departments, and emergency services often use the 144MHz and 430MHz frequencies for communication. The GLSDR2 can be installed on vehicles or at communication centers to ensure reliable communication during emergencies.

  3. Maritime Communication:Boats and ships use VHF radios for communication with other vessels and coastal stations. The GLSDR2's durable steel construction and ability to operate in a wide temperature range make it suitable for the harsh marine environment. Its gain and dual - band functionality can improve the range and clarity of VHF signals, enhancing safety at sea.

  4. Aviation Ground - to - Air Communication:At airports, ground - based communication systems that operate on the 144MHz or 430MHz frequencies can use the GLSDR2. It helps in ensuring accurate and reliable communication between air traffic control and aircraft.

  5. Industrial Wireless Monitoring:Industries that use wireless sensors and devices for equipment monitoring and process control in the 144MHz or 430MHz bands can benefit from the GLSDR2. It can be integrated into these systems to improve signal strength and reliability.

FAQ

Q: Is this antenna waterproof?
A: The steel radome provides weather resistance but is not fully waterproof. Avoid prolonged exposure to water.

Q: What devices use the PL259 connector?
A: Compatible with CB radios, transceivers, and base stations using PL259 ports.

Q: Can it handle high-power transmissions?
A: Yes, it supports up to 50W input power for strong and clear signal output.

Q: How to install this antenna?
A: Mount vertically using a bracket or magnetic base on vehicles, rooftops, or poles for optimal performance.

Q: Does it work in extreme temperatures?
A: Yes! It operates reliably from -40°C to 80°C, suitable for harsh climates.

Q: Is it suitable for urban areas with signal interference?
A: Yes, its vertical polarization and low VSWR (≤1.5) minimize interference in crowded environments.


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