this is my first post on the forum, so please be patient …
I’m running the latest dump1090-mutability (github.com/mutability/dump1090/ … 2b4a876dd5) on a raspi 1, model b+.
As RTL-dongle I’m using Salcar DVB-T Stick which has a Raphael tuner (RTL2832U+R820T). All is working nice and stable so far.
However, I’m owning a Terratec Cinergy T Stick RC (Rev.3) with an Elonics 4000 tuner. As this one has a wider frequency range, I’ve tried to use it together with the dump1090. But what I’m experiencing is that the message rate descends from a litte over 300 msg/s down to 3 msg/s within a minute. The message rate from the salcar is stable around 200 msg/s, depending on the air traffic.
Now to my question: Has somebody similiar experience with the E4000 tuner and an idea why the message rate descends ?
My first idea was to play with the gain (from max to 10), but beyond 29 there was nearly zero message rate.