RTL-SDR AM High Pass Filter

RTL-SDR AM High Pass Filter

The RTL-SDR AM High Pass Filter is a receive-only RF filter designed to suppress strong broadcast AM signals and other low-frequency interference that can overload SDR receivers and HF monitoring equipment. Featuring a 2.6 MHz high-pass cutoff and approximately 60 dB attenuation below the AM broadcast band, it helps improve reception quality on HF frequencies by reducing front-end overload and intermodulation products.

Key Features

• Broadcast AM rejection high-pass filter for SDR and receiver applications
• Designed to suppress AM broadcast signals from approximately 500 kHz to 1.7 MHz
• Approximately 60 dB attenuation of unwanted AM broadcast signals
• 2.5 MHz to 2.6 MHz 3 dB cutoff frequency
• Helps prevent SDR front-end overload from strong local AM transmitters
• Improves HF reception performance in high-signal urban environments
• Reduces intermodulation products and unwanted images
• Effective for HF monitoring above the AM broadcast band
• Compatible with RTL-SDR receivers and other SDR platforms
• Useful with direct sampling SDR receivers operating on HF
• Passive LC high-pass filter design
• No external power required
• Compact aluminum enclosure for RF shielding
• SMA female connectors on both ports
• Simple inline installation between antenna and receiver
• Low insertion loss within the passband
• Suitable for shortwave listening and HF monitoring applications
• Compatible with scanners, SDRs, and communications receivers
• Improves weak-signal reception when AM overload is present
• Receive-only operation for monitoring equipment
• Compact and lightweight design
• Durable metal housing for long-term use
• Ideal accessory for HF spectrum monitoring
• Plug-and-play installation with no configuration required
• Designed specifically to address broadcast AM interference issues

Typical Uses

• HF and shortwave listening
• Software Defined Radio (SDR) reception
• Direct sampling SDR applications
• Weak-signal HF monitoring
• Amateur radio receive stations
• Spectrum analysis and RF experimentation
• Urban radio monitoring installations

In the Box

• RTL-SDR AM High Pass Filter
• SMA Male-to-Male Adapter