Blocks the broadcast FM band between 88 - 108 MHz with over 50dB of attenuation. Insertion loss is less than 0.5 dB between 0 - 1 GHz, and mostly less than 1.5 dB between 1 - 3 GHz. A broadcast FM block filter can help if you have very strong broadcasts in your area that are overloading the SDR dongle. Also known as "FM Trap".
- Genuine RTL-SDR.com product
- SMA female connectors
- Extruded aluminium casing
- 50 ohm impedance
- SMA coupler included
- Low insertion loss
- Size 2.8 x 2.8 x 1.3cm
- Weight 17g
The filter is based on a simple 7th order Chebyshev design. The 3 dB roll off is at 76 MHz and 122 MHz. 88 MHz is attenuated by almost 60 dB, and 108 MHz is attenuated by 45-50 dB. The filter can also pass up to 80 mA of DC current (e.g. to power an up-stream LNA) and has negligible DC resistance.
Please note: Designed for receive use only.
RTL-SDR.com Broadcast FM Band-Stop Filter
- Product Code: RTLSDRfmFilt
- Availability: In Stock
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