Wideband LNA by RTL-SDR Blog
WDBN-RTL--RRWPFF
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Description
This is a general purpose SPF5189Z based wideband LNA. Works from 50 MHz to 4 GHz with a noise figure of less than 1dB. Requires bias tee power, but there is an internal header which can be used to switch to external power, although for external power wires you'll need to drill a hole into the enclosure. If you're looking to improve ADS-B performance we recommend our Triple Filtered ADS-B LNA shown above.
Please note again: Requires 3 - 5v bias tee power. The RTL-SDR V3 provides 4.5v so is suitable.
Features
Brand Name
RTL-SDR
Products questions
Ask question
Günther Maurer
05/12/2025, 19:59
does this lna work good with rtl sdr v3 or do i need something else too?
SDRstore Support
05/14/2025, 21:01
Yes, it works well with the RTL-SDR V3. Just make sure to enable the bias tee in your software to power the LNA. This setup improves reception, especially for frequencies above 100 MHz.
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