English
GL-SD77S
Asialeren
8517710000
100pc
accepted
10000PC/days
| Quantity: | |
|---|---|
| PDF Export | |
Electrical specifications | |
Frequency Range(MHz) | 144-430MHZ |
Impedance(ohm) | 50 |
Gain (dBi) | 2.5-3.5dbi |
Polarization | Vertical |
VSWR | ≤1.5 |
Maximum input power (W) | 50 |
Mechanical specifications | |
Connector | PL259 |
Height-mm | 495mm |
Radome Material | steel |
Color | black |
Weight-KG | 0.25 |
Operating temperature (℃) | -40～80 |
Product Introduction
VHF Band Compatibility：The GL - SD77S is designed for the VHF band, making it suitable for a wide range of VHF - based wireless applications. It can effectively transmit and receive signals within the VHF frequency spectrum, meeting the communication needs of various devices and systems.
Stable Impedance Design：Although the impedance value isn't provided, a well - designed impedance for VHF applications ensures efficient power transfer. This helps in minimizing signal reflection and maximizing the performance of the antenna when connected to different devices.
Signal - Boosting Potential：The gain of the GL - SD77S, while not specified, is engineered to enhance weak VHF signals. A higher gain can extend the communication range and improve the quality of received signals, enabling better connectivity over longer distances.
Polarization - Tailored Performance：The polarization of the GL - SD77S, which is not given, is carefully selected. Different polarizations are optimized for different environments and applications. The chosen polarization helps reduce interference and ensures a more stable connection.
Durable Build Quality：Details like the radome material, color, weight, and operating temperature range contribute to the antenna's durability. A sturdy radome protects internal components from environmental factors, and the ability to operate within a specific temperature range makes it suitable for both indoor and outdoor use.
Application scenarios
Amateur Radio Enthusiasts: Optimize signal clarity for 2m/70cm band communications.
Emergency Responders: Reliable communication during disasters or remote operations.
Outdoor Adventures: Lightweight and durable for hiking, camping, or marine use.
Vehicles & Mobile Units: Compact design for car roof or truck installations.
Base Stations: Stable performance for fixed communication setups in rural or urban areas.
FAQ
Q: Is this antenna waterproof?
A: The steel radome provides weather resistance, but it’s not fully waterproof. Avoid prolonged submersion.
Q: Can I use it with a 100W radio?
A: No. The maximum input power is 50W. Exceeding this may damage the antenna.
Q: Does it include mounting hardware?
A: No, but it’s compatible with standard mounts (e.g., NMO or magnetic bases).
Q: Is the connector reverse-polarity compatible?
A: No, it uses a standard PL259 male connector.
Q: How tall is the antenna?
A: 495mm (19.5 inches), optimized for portability and performance.
Q: Will it work with a Baofeng UV-5R?
A: Yes, if your radio supports PL259 connectors (may require an adapter).
Q: Can it handle snowy conditions?
A: Yes, it operates reliably in temperatures as low as -40°C.
Electrical specifications | |
Frequency Range(MHz) | 144-430MHZ |
Impedance(ohm) | 50 |
Gain (dBi) | 2.5-3.5dbi |
Polarization | Vertical |
VSWR | ≤1.5 |
Maximum input power (W) | 50 |
Mechanical specifications | |
Connector | PL259 |
Height-mm | 495mm |
Radome Material | steel |
Color | black |
Weight-KG | 0.25 |
Operating temperature (℃) | -40～80 |
Product Introduction
VHF Band Compatibility：The GL - SD77S is designed for the VHF band, making it suitable for a wide range of VHF - based wireless applications. It can effectively transmit and receive signals within the VHF frequency spectrum, meeting the communication needs of various devices and systems.
Stable Impedance Design：Although the impedance value isn't provided, a well - designed impedance for VHF applications ensures efficient power transfer. This helps in minimizing signal reflection and maximizing the performance of the antenna when connected to different devices.
Signal - Boosting Potential：The gain of the GL - SD77S, while not specified, is engineered to enhance weak VHF signals. A higher gain can extend the communication range and improve the quality of received signals, enabling better connectivity over longer distances.
Polarization - Tailored Performance：The polarization of the GL - SD77S, which is not given, is carefully selected. Different polarizations are optimized for different environments and applications. The chosen polarization helps reduce interference and ensures a more stable connection.
Durable Build Quality：Details like the radome material, color, weight, and operating temperature range contribute to the antenna's durability. A sturdy radome protects internal components from environmental factors, and the ability to operate within a specific temperature range makes it suitable for both indoor and outdoor use.
Application scenarios
Amateur Radio Enthusiasts: Optimize signal clarity for 2m/70cm band communications.
Emergency Responders: Reliable communication during disasters or remote operations.
Outdoor Adventures: Lightweight and durable for hiking, camping, or marine use.
Vehicles & Mobile Units: Compact design for car roof or truck installations.
Base Stations: Stable performance for fixed communication setups in rural or urban areas.
FAQ
Q: Is this antenna waterproof?
A: The steel radome provides weather resistance, but it’s not fully waterproof. Avoid prolonged submersion.
Q: Can I use it with a 100W radio?
A: No. The maximum input power is 50W. Exceeding this may damage the antenna.
Q: Does it include mounting hardware?
A: No, but it’s compatible with standard mounts (e.g., NMO or magnetic bases).
Q: Is the connector reverse-polarity compatible?
A: No, it uses a standard PL259 male connector.
Q: How tall is the antenna?
A: 495mm (19.5 inches), optimized for portability and performance.
Q: Will it work with a Baofeng UV-5R?
A: Yes, if your radio supports PL259 connectors (may require an adapter).
Q: Can it handle snowy conditions?
A: Yes, it operates reliably in temperatures as low as -40°C.
