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NVGA-15 / Photonis ECHO is a high-quality European night-vision system that combines the lightweight NVGA-15 housing with Photonis ECHO image-intensifier tubes (P43 green phosphor).
The ECHO series represents an intermediate performance class between civilian and professional-grade systems, known for its high sensitivity, operational stability, and long service life.
Thanks to Fast Auto-Gating technology, the device effectively adapts to changing light conditions, reducing blooming and preserving contrast even near bright light sources.
⚙️ Technical Specifications
| Parameter | Value |
|---|---|
| Housing | NVGA-15 (modular binocular, PVS-14 Dual–style) |
| IIT Type | Photonis ECHO (Gen 2+/3 hybrid, Fast-Autogated) |
| Tube Format | 18 mm (optional 16 mm) |
| Phosphor | P43 (green) |
| Figure of Merit (FOM) | ≈ 1800–2200 |
| Signal-to-Noise Ratio (SNR) | ≥ 23 |
| Resolution (RES) | ≥ 57 lp/mm |
| High-Light Resolution (HLLR) | ~50 lp/mm |
| Auto-Gating | Yes (Fast-Autogated PSU) |
| Spectral Range | 350–1000 nm |
| EBI (Equivalent Background Illumination) | ≤ 2.0 |
| Halo | ≤ 1.0 |
| Tube Service Life | ~10,000 hours |
| Housing Power Supply | 1× CR123A or external power port |
| System Weight | ≈ 470 g |
| Housing Water Protection | IP66 |
Comment / Quality Level
Photonis ECHO P43 tubes offer a balanced solution between Gen 3-level performance and the operational stability of European Gen 2+ systems.
They deliver a clean image with good contrast and minimal grain while maintaining a natural green tone that is comfortable for long-term viewing.
Integrated into the NVGA-15 housing, this configuration stands out for its low weight, reliability, and versatility, making it suitable for both field applications and civilian use.