NooElec Flamingo AM Broadcast AM Bandstop Filter aka AM Notch Filter for Software Defined Radio SDR Applications

• A high-quality, high-performance broadcast AM bandstop filter designed for software defined radio (SDR) applications. Includes free male SMA-male SMA barrel connector! Designed and manufactured by NooElec in North America. Impeccable quality and full 2-year warranty
• Broadcast AM stations can be particularly problematic due to the high-powered transmitters used for broadcasting in some areas. These signals can overload the front end of an SDR, causing imaging and a number of other issues. As such, Flamingo AM makes a great companion to our Ham It Up series of HF upconverters (available separately on Amazon)
• Flamingo AM was designed to provide approximately 40dB attenuation for broadcast AM frequencies, while ensuring that adjacent bands are minimally affected. The -3dB rolloff of the filter is 350kHz and 1900kHz. The minuscule out-of-band insertion losses means the filter can stay in place for most any application--though we do recommend removing Flamingo AM from the signal chain when not receiving HF frequencies
• Flamingo AM is a proper bandstop filter, so you are able to pass-through DC (bias-tee) power when required. DC current handling is 250mA (min), and the maximum recommended signal level is +18dBm (5Vp-p), so there is no issue using the filter for higher-power applications
• The filter is fully EMI shielded, installed in a custom anodized aluminum enclosure for further protection and isolation. The front end is protected by an RF-rated ESD diode, which provides protection not just for your filter, but also the radio or SDR behind it

A high-quality, high-performance bandstop filter designed for software defined radio (SDR) applications. Designed and manufactured by NooElec in North America, with a full 2-year product warranty. Broadcast AM can be particularly problematic due to the high-powered transmitters used for broadcasting in some areas. These signals can overload the front end of an SDR, causing imaging and a number of other issues. As such, Flamingo AM makes a great companion to our Ham It Up series of HF upconverters. We designed Flamingo AM to provide sufficient attenuation for broadcast AM frequencies (>40dB typical) while ensuring adjacent bands, such as 160m, are minimally affected. The -3dB rolloff of the filter is 350kHz and 1900kHz. Minimal out-of-band insertion loss means the filter can stay in place for most any application, though we do recommend removing Distill:AM from your setup when not listening to HF frequencies. As a true bandstop filter, you are able to pass-through DC (bias power) when it is required. DC current handling is 250mA (min), and the maximum recommended signal level is +18dBm (5Vp-p), so there is no issue using the filter for higher-power applications. Typical performance characteristics can be found on the downloads tab of the product page on our website. Flamingo AM has its filter circuitry fully shielded with an EMI frame, and has its front end protected by an ESD diode meant for RF applications. 2 mounting holes are available on the PCB for various mounting options, and the SMA hardware (washer and nut) is included.