Hartwig 144-149mhz LNA  solved my RFI problems with my SATNOGS station. 

https://network.satnogs.org/stations/984/

73 KJ6DZB cm87

On Mon, Dec 28, 2020 at 9:35 AM Andy Brian <briaandy@gmail.com> wrote:
Hi,

I received many pictures from ISS. I'm using RTL dongle 2832 with SDR# program and
MMSSTV with virtual cable and Orbitron.I found many rainbow lines on pictures and I analysed that this is the case of transmission  with APRS local stations around 5km away and 1mhz below my receiving.
Anyone have experirence of good filtering or set the SDR# program to reduce the infulence from
of transmitter which is far away from 145.8MHz but still in the 2MHz bandwidth of RTL2832?

BR Andy

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