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  • Flamingo+ FM - Broadcast FM Bandstop Filter v2 (FM Notch Filter) for Software Defined Radio (RTL-SDR) Applications. Blocks Problematic 88-108MHz Frequencies from your SMA-Connected Radio
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Flamingo+ FM - Broadcast FM Bandstop Filter v2 (FM Notch Filter) for Software Defined Radio (RTL-SDR) Applications. Blocks Problematic 88-108MHz Frequencies from your SMA-Connected Radio

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Compatible devices SDR Receivers with SMA Connectors
Connector type SMA
Brand NooElec
Connectivity technology SMA
Colour Black

About this item

  • Flamingo+ FM (Flamingo FM v2) is a high attenuation bandstop filter designed to stop very strong broadcast FM transmissions from causing overload and other issues with your radio or SDR
  • The attenuation level of this filter is much higher than Flamingo FM v1 (>60dB typical avg. & >70dB typical max attenuation). We recommend this filter for urban environments and other locations with high-wattage FM transmitters nearby. For other locations, Flamingo FM v1 is a better option
  • Flamingo+ FM has a higher attenuation than other similar commercial filters, while also have a lower insertion losses outside of the stop band (<0.25dB avg.) and less of an effect on the adjacent VHF airband of 108MHz-137MHz (8dB avg. attenuation vs 16dB avg. of similar filters)
  • Please review the datasheet for full product details! https://www.nooelec.com/datasheets/100813 The -3dB rolloff of the filter is 75MHz and 120MHz, and -10dB rolloff of the filter is 80MHz and 116MHz
  • Designed and manufactured by Nooelec in North America, with a full 2-year product warranty
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Flamingo+ FM - Broadcast FM Bandstop Filter v2 (FM Notch Filter) for Software Defined Radio (RTL-SDR) Applications. Blocks Problematic 88-108MHz Frequencies from your SMA-Connected Radio


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Flamingo+ FM - Broadcast FM Bandstop Filter v2 (FM Notch Filter) for Software Defined Radio (RTL-SDR) Applications. Blocks Problematic 88-108MHz Frequencies from your SMA-Connected Radio
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Price—£85.14£33.26£31.89£33.19
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Get it as soon as Thursday, Jan 30
Get it as soon as Thursday, Jan 30
Get it as soon as Thursday, Jan 30
Get it as soon as Thursday, Jan 30
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Product description

For more information, please visit the product page at nooelec.com!

Flamingo+ FM (Flamingo FM v2) is a high-quality, high-attenuation bandstop filter designed for software defined radio (SDR) applications where broadcast FM transmissions are especially strong and/or problematic. This generally means urban areas, but can include rural areas where there are nearby high wattage FM transmitters. For other locations, we strongly recommend considering the original Flamingo FM v1, which has lower attenuation of the stopband but also lower attenuation of the nearby VHF airband (108-137MHz) and otherwise similar characteristics and out-of-band performance.

Broadcast FM signals can be particularly problematic compared to other signal types due to their amplitude (transmit power) and proximity to residential areas. These signals can overload the front end of an SDR, causing imaging and a number of other issues.

We designed Flamingo+ FM to provide sufficient attenuation for broadcast FM frequencies (>60dB typical average & >70dB typical maximum stopband attenuation) while ensuring adjacent bands, such as the important VHF airband (108-137MHz) are minimally affected. The -3dB rolloff of the filter is 75MHz and 120MHz, and -10dB rolloff of the filter is 80MHz and 116MHz.

The minimal (<0.25dB) out-of-band insertion loss means the filter can stay in place for most any application. The maximum recommended signal level is +18dBm (5Vp-p), so there is no issue using the filter if you have higher power requirements than most do. As a true bandstop filter, you are able to pass-through DC (bias power) when it is required. DC current handling is 250mA (min).

Flamingo+ FM has its front end protected by an ESD diode meant for RF applications. Designed and manufactured by Nooelec in North America, with a full 2-year product warranty.

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