The Diamond FDVU-2S is a professional-grade RF stack transformer (power splitter/combiner) engineered specifically to co-phase and stack two Diamond FDU-series UHF antennas, such as the FDU-31 or FDU-11. Highly regarded by telecommunication engineers and amateur radio operators alike, this precision-built power divider allows you to feed two stacked directive antennas in perfect phase. By combining two antennas, the FDVU-2S helps you achieve a narrower vertical radiation pattern and gain an additional 3 dB of system performance, dramatically extending your station’s reach and coverage.
Built for demanding outdoor base station installations, the FDVU-2S features a rugged, weather-resistant aluminum and brass alloy housing designed to withstand extreme temperature fluctuations, high wind resistance, and corrosive environments. It terminates in premium, low-loss N-female connectors to ensure maximum impedance matching and signal integrity across high-frequency UHF bands. Its structural integrity ensures that insertion loss is kept to an absolute minimum, allowing you to maximize your effective radiated power (ERP).
The unit features a pre-installed, heavy-duty mounting bracket designed to clamp directly to any standard antenna support mast with a diameter ranging from 30 to 62 mm. Measuring 54.5 x 7.0 cm and weighing a solid 1.1 kg, the Diamond FDVU-2S is engineered to balance physical strength with minimal wind loading, making it a highly reliable, long-lasting component of any high-performance directional antenna array.
Key Features
- Dedicated co-phasing stack transformer designed for Diamond FDU-31 and FDU-11 antennas.
- Adds up to 3 dB of system gain by cleanly phasing and combining two directive antennas.
- Equipped with high-performance, low-loss N-female RF connectors for superior signal integrity.
- Rugged, weather-sealed metal housing engineered for long-term outdoor base station use.
- Heavy-duty integrated mounting bracket fits standard masts from 30 mm to 62 mm in diameter.
- Engineered to maintain a highly stable 50 Ohm impedance match with minimal insertion loss.
Technical Specifications
| Parameter | Specification |
|---|---|
| Brand | Diamond Antenna |
| Model Designation | FDVU-2S |
| Product Type | RF Stack Transformer / 2-Way Co-Phasing Power Divider |
| Antenna Compatibility | Diamond FDU-31, Diamond FDU-11 (or equivalent paired UHF antennas) |
| Connector Type | N-Type Female (Low-Loss) |
| Nominal Impedance | 50 Ohms |
| Accepted Mast Diameter | 30 – 62 mm |
| Physical Dimensions (LxW) | 54.5 x 7.0 cm |
| Net Weight | 1.1 kg |
Package Content
- 1x Diamond FDVU-2S Stack Transformer
- 1x Heavy-Duty Mast Mounting Bracket & Hardware Kit
- 1x User Reference / Assembly Instructions
