915MHz Cavity Filter – High-Rejection N-Type Bandpass Module for North American Helium Miners, LoRa Gateways & Long-Range Sensors
Product Description
Operating in the dense 902-928MHz North American ISM band exposes sensitive receivers to strong adjacent channel interference and spurious emissions. The 915MHz Cavity Filter is engineered to safeguard your RF front-end by delivering ≥60dB outstanding out-of-band rejection with minimal ≤1.0dB insertion loss. Optimized specifically for the North American Helium network and LoRa infrastructure, it ensures that gateways and wireless sensors only process clean, intended signals. Built with a rugged black aluminum housing and flexible N-type connector options, this module provides a highly reliable, drop-in solution for protecting indoor mining setups and long-range industrial telemetry equipment from desensitization.
Typical Applications
- North American Helium Miners: Block strong adjacent interference to maximize network stability and mining efficiency.
- Indoor LoRa Gateways: Protect receiver front-ends in dense IoT environments to preserve link budget.
- Long-Range Wireless Sensors: Enhance signal purity for reliable data transmission in industrial sensor hardware.
- Smart Agriculture Networks: Suppress out-of-band noise for soil moisture and environmental monitoring systems.
- Industrial Telemetry Links: Ensure spectral compliance and reduce packet loss in remote monitoring applications.
- RF Testing & Diagnostics: Provide precise bandpass filtering for laboratory validation and field troubleshooting.
Technical Specifications
|
Parameter |
Value |
|
Working Frequency |
902-928MHz (Center 915MHz) |
|
Input And Output Impedance |
50Ω |
|
VSWR |
≤1.3 |
|
Insertion Loss |
≤1.0dB |
|
In-Band Ripple |
<0.5dB |
|
Out-of-Band Rejection |
≥60dB |
|
Power Supply |
20W |
|
Operating Temperature |
-40~80℃ |
|
RF Connectors |
N-Male; N-Female; N-Male+N-Female |
|
Housing |
Rugged Aluminum |
|
Surface Finish |
Painted Black |
|
Size |
104*59*37.5mm |
|
Net Weight |
336g |
|
Intended Use |
Indoor |
Key Advantages
Superior Out-of-Band Interference Blocking. Featuring ≥60dB rejection, this cavity filter shields sensitive receiver front-ends from high-power adjacent signals and spurious emissions, preventing saturation in high-density RF environments.
Low Insertion Loss and Excellent Matching. With ≤1.0dB insertion loss and VSWR ≤1.3, the filter ensures minimal attenuation within the 902-928MHz passband, preserving both transmit power and receive sensitivity.
Rugged Enclosure and Flexible N-Type Interfaces. The 104*59*37.5mm painted black aluminum chassis offers excellent mechanical durability. Multiple N-type connector configurations (N-Male, N-Female, or both) support seamless integration into various indoor wireless infrastructures.
What's in the Box
- 1 × 915MHz Cavity Filter