Main Product Introduction
The ML-BF-1880-NF is a high-performance band-pass filter optimized for the 1800MHz spectrum. With a robust attenuation of ≥60dB, it effectively isolates communication channels from adjacent band noise. Designed for efficiency, it maintains an insertion loss of ≤1.5dB and a VSWR of ≤1.3:1, ensuring minimal signal degradation in 30W systems. The unit is housed in a 73*73*37mm aluminum enclosure with a durable black paint finish, weighing only 0.6 KG. Its N-Female connectors and broad operating temperature range (-25 to +60°C) make it a versatile choice for both indoor and outdoor cellular infrastructure.
Application Scenarios
- IBS & DAS Systems: Enhancing in-building signal quality by filtering out-of-band emissions in distributed networks.
- BTS Integration: Protecting base station transceivers from interference in congested 1800MHz environments.
- Signal Isolation: Providing sharp frequency cutoff for multi-provider neutral host systems.
- Outdoor Infrastructure: Reliable performance in exposed environments thanks to the IP65-rated housing.
Electrical Specifications
| Parameters | Specifications |
|---|---|
| Model No. | ML-BF-1880-NF |
| Frequency Range | 1805 – 1880 MHz (DCS 1800 Band) |
| VSWR | ≤ 1.3:1 |
| Insertion Loss | ≤ 1.5 dB |
| Attenuation | ≥ 60 dB |
| Operating Range | -25 to +60℃ |
| Application (IP Grade) | IP65 |
| Input Power (Max) | 30 W |
| Surface Finish | Black Paint |
| Port Connectors | N Female |
| Net Weight | 0.6 KG |
| Outer Dimension | 73 * 73 * 37 mm |
| Packing | 1 Pce in box |
FAQ
- What is the primary benefit of the IP65 rating for this filter?
- The IP65 rating ensures the filter is dust-tight and protected against water ingress from low-pressure jets. This allows for safe installation in humid or dusty environments common in telecommunications enclosures.
- How does the 60dB attenuation impact my network performance?
- With ≥60dB attenuation, the filter provides massive suppression of unwanted signals outside the 1805-1880MHz range. This prevents “noise floor” elevation and ensures higher data throughput for users on the 1800MHz band.
- Is this filter suitable for high-power macro cell towers?
- This filter is rated for a maximum 30W input power, making it ideal for Small Cells, Distributed Antenna Systems (DAS), and the secondary stages of Base Transceiver Stations (BTS) rather than high-power macro outputs.
- Does the compact size affect its thermal performance?
- Despite its small 73*73*37mm footprint, the aluminum cavity design is optimized for thermal dissipation, allowing it to operate reliably between -25 and +60°C without frequency drift.