Main Product Introduction
The 320-360MHz Bandpass Filter is a robust RF component engineered for mission-critical UHF applications. It features a precision-tuned architecture that ensures minimal signal attenuation (≤1.0dB) across the passband while providing a steep out-of-band rejection of ≥25dB at 500MHz. Housed in a durable enclosure with SMA Female connectors, this filter is built to operate reliably in temperatures ranging from -20 to +65℃. Available in light grey or black, its 50Ω impedance and ≤1.35 VSWR make it a seamless fit for professional radio networks requiring high spectral purity and stable 20W power performance.
Electrical Specifications
| Parameters | Specifications |
|---|---|
| Frequency Range | 320 – 360 MHz |
| Average Power | 20 W |
| VSWR | ≤ 1.35 |
| Insertion Loss | ≤ 1.0 dB |
| Outband Rejection | ≥ 25 dB @ 500 MHz |
| Impedance | 50 Ω |
| Connector Type | SMA Female |
| Temperature Range | -20 to +65℃ |
| Color | Light Grey or Black |
FAQ
- What are the typical application scenarios for this UHF bandpass filter?
- This filter is ideal for UHF radio communication systems, telemetry, and private mobile radio (PMR) networks. It is specifically used to prevent receiver desensitization by blocking strong out-of-band signals and cleaning up transmitter outputs to meet regulatory emission standards.
- How does the 25dB rejection at 500MHz benefit my system?
- The ≥25dB rejection ensures that signals at 500MHz (such as those from nearby high-frequency transmitters or harmonics) are suppressed by more than 300 times. This protects the integrity of your 320-360MHz communication channel from interference.
- Is this filter suitable for continuous transmitter use?
- Yes, it is rated for 20W average power, making it suitable for low-to-medium power base stations, repeaters, and mobile radio installations that require constant operation.
- What connector type and impedance does this unit use?
- The filter features industry-standard SMA Female connectors and a 50Ω impedance, ensuring compatibility with most professional RF cables, antennas, and test equipment.
- Can this filter be used in outdoor environments?
- With an operating temperature range of -20 to +65℃, it is well-suited for indoor racks or protected outdoor enclosures. For direct outdoor exposure, it should be housed in an IP-rated weather-proof box to prevent moisture ingress.
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