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AWPF-1 Series RF Protection Filter for Sound Recordists
Cut the RF Noise. Keep the Audio Clean
Key Features:
Precision RF Filtering:
Passes only the frequencies you want, blocking interference before it reaches your receivers.
Custom-Tuned Bands:
Available in popular industry ranges or tailored to your exact needs.
Ultra-Low Loss, High Protection:
Minimal signal loss with excellent rejection of unwanted RF.
Boosts System Performance:
Helps protect receiver front-ends, improves dynamic range, and lowers noise floor.
DC Pass-Through Ready:
Powers active antennas (up to 370 mA) with a handy LED status indicator.
Rugged & Compact:
CNC-machined aluminium, black-anodized, laser-marked, and sized for any sound bag or cart.
Plug-and-Play:
Passive design requiring no power, with industry-standard BNC connectors.
The AWPF-1 Series filter provides top-notch protection against unwanted RF (radio frequency) interference, ensuring your audio gear stays clear of signal disruptions. Perfect for sound recordists working in environments with high RF activity, like near wireless transmitters or cameras, this filter keeps your receiving systems running smoothly.
- Superior RF Protection: Blocks out unwanted signals from nearby devices like wireless IEM transmitters or camera transmitters, allowing your equipment to focus on what matters—clear, uninterrupted audio.
- High-Performance Design: With excellent rejection of unwanted signals and minimal signal loss, this filter enhances the performance of your gear without degrading sound quality.
- Custom-Tuned for Industry Needs: Available in a range of popular frequency bands (470–1260 MHz), or custom-tuned to your specifications for precise RF protection.
- Easy to Use: No power required—simply plug it in and you’re good to go. The filter is also designed to pass DC power to "Active Antennas" when needed. A convenient LED indicator shows the power status.
- Built for Durability: Crafted from CNC-machined aluminium, the AWPF-1 Series is designed to withstand the daily wear and tear of fieldwork. The black anodised finish and clear laser markings ensure long-lasting readability and reliability.
Technical Specifications
| Band Pass Filter Section | |
| Frequency Range | 470 to 1260MHz (in bands -see ranges below) |
| Bandwidth | 48MHz (other Bandwidths on request) |
| Ripple in Band | 1.0dB (max.), nominal <0.5dB |
| Skirt Selectivity | 25dB@+/-50MHz (min) (LC Based Filter Technology) 50dB@+/-50MHz(min) (SAW Based Filter Technology) |
| Maximum RF Input | 3Watt (LC-Based Filter Technology) 10mW (SAW-Based Filter Technology) |
| Insertion Loss | 3.5dB max. (2.5dB nom) |
| Noise Figure | <3.5dB (max) equates to "Insertion Loss" of the specific filter design, nominal 2.5dB |
| Input/Output Impedance | 50Ω |
| Operating Temperature | -20 to +55°C |
| RF Connectors | |
| RF IN/OUTPUT | 50Ω industry standard BNC socket |
| Indicator | |
| DC through LED | RED LED ON when DC present |
| Powering | |
| DC Current Pass | 370mA (max) |
| DC Volts Pass | 6 to 18V dc (Active Antenna Powering Volts) |
| Outer Case | |
| Dimensions | 103mm (inc. BNC connectors) x 46.5mm x 22.5mm |
| Weight | 97g |
48MHz Bandwidth (LC Technology) Standard Stock frequency ranges:
- 470-518MHz
- 494-542MHz
- *518-542MHz
- 518-566MHz
- 542-590MHz
- 560-608MHz
- 566-614MHz
- 582-630MHz
- 606-654MHz
- 630-678MHz
- 646-694MHz
- 654-702MHz
- 666-714MHz
- 823-865MHz (UK, EU)
Narrow Bandwidth with SAW Technology BPF:
- 806-810MHz (Japan)
- 823-832MHz (UK, EU)
- 940-960MHz (USA)
- 960-992MHz (UK DME)
- 1045-1075MHz (UK DME)
- 1105-1154MHz (UK DME)
- 1240-1260MHz (Japan)
Semi-Broad Band Pass Filters (LC Technology stock range):
- 470-608MHz
- 510-608MHz
- 470-663MHz
- 470-694MHz
- 470-700MHz
- 470-865MHz
- 470-960MHz
- 500-960MHz
- 960-1164MHz
Wide-Band Band Pass Filters (LC Technology stock ranges):
- 470-1164MHz
- 470-1260MHz
If your Frequency Band is not listed above, please contact us: technicalsupport@audiowireless.co.uk
