QFH Antenna
The QFH Antenna QFH-137 is designed for 137 MHz RHCP signal reception, making it ideal for satellite and weather satellite monitoring. Its Quadrifilar Helix design provides circular polarization for stable signal reception and reduced signal fading. Built for reliable performance, it ensures clear satellite communication and consistent reception for monitoring applications.
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Balanced Signals with Clear Communication.
QFH Antenna 137 Mhz is a high-performance circularly polarized antenna designed for satellite and weather signal reception. It delivers excellent omnidirectional coverage, low signal loss, and strong noise rejection.
Electrical Specification
| Specification | Details |
|---|---|
| Frequency Range | 137 MHz |
| Gain | 5 dBi |
| Bandwidth | 5 MHz |
| Polarization | Circular RHCP/LHCP (Fixed) |
| Input Impedance | 50 Ohms |
| Coverage | Omni / Hemispherical |
| Beam-width | 170° |
| VSWR | ≤ 1.5 : 1 |
| RF Power Handling Capacity | 100 Watts |
| Input Connector | N-Female |
Mechanical Specification
| Specification | Details |
|---|---|
| Mounting Hardware | Stainless Steel |
| Gross Weight (Approx.) | 4.5 Kg |
| Overall Length (Approx.) | 100 cm |
| Wind Rating | 150 Km/Hr |
| Radiating Material | Aluminium |
| Body Material | Fiberglass |
| Radome | No-Radome |
| Maximum Mounting Pipe Diameter | 50 mm |
Environmental Specification
| Specification | Details |
|---|---|
| Operating Temperature | -30°C to +70°C |
| Storage Temperature | -40°C to +80°C |
| Humidity | 0 to 95% RH |
Data Sheet
Test Report
Why Weather Satellite Enthusiasts Prefer QFH Antennas
Weather satellite hobbyists consistently prefer QFH antennas because of their reliable performance and ease of operation. Unlike directional antennas, QFH systems eliminate the need for constant manual tracking.
Users benefit from:
- Continuous satellite coverage
- Better weather image decoding
- Reduced signal fading
- Improved reception reliability
- Easier installation and operation
These advantages make the QFH Antenna 137 MHz one of the best solutions for satellite weather reception.
Future of QFH Antenna Technology
As satellite communication technology continues to evolve, antenna systems must provide higher efficiency and better signal reliability. The future of QFH antenna systems includes:
- Improved material technology
- Better signal filtering
- Enhanced RF efficiency
- Compact antenna designs
- Advanced weather resistance
- Optimized satellite tracking performance
RF Army continues focusing on advanced RF solutions that meet modern communication and satellite reception demands.
Choosing the Right QFH Antenna 137 MHz
When selecting a QFH antenna, users should consider:
- Frequency Accuracy
The antenna should be properly tuned for the 137 MHz weather satellite band.
- Build Quality
Durable materials improve outdoor lifespan and signal stability.
- Signal Performance
A properly engineered antenna provides better gain and cleaner signal reception.
- Installation Support
Professional guidance ensures correct setup and optimal antenna positioning.
Conclusion
The QFH Antenna 137 MHz remains one of the most effective antenna solutions for weather satellite reception, RF monitoring, and VHF communication applications. Its circular polarization design, stable signal reception, and omnidirectional coverage make it ideal for NOAA weather satellite decoding and scientific RF projects.
RF Army provides advanced antenna solutions focused on performance, durability, and reliable communication technology. With optimized RF engineering, high-quality materials, and professional antenna design, we help users achieve superior satellite reception and long-lasting antenna performance.
Whether for weather satellite tracking, amateur radio projects, or RF research applications, a professionally designed QFH Antenna 137 MHz system delivers exceptional signal quality and operational reliability for modern communication needs.
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