SDR AIS available in OpenPlotter 2

[holgerw]

I have been running the Initial PPM tool for about 2 hours. My values don't seem to stabilize. Going along fine at 250 look a few minutes later and I am -500. Is there something I wrong with my sdr device?

Device is a RTL2832U v3 from https://www.rtl-sdr.com/

Is there a way to supply a gain value?

Hello, you PPM Value is really way off. -p 55327 !!!!

with all of my rtl sticks, i had never values greater  as 60..70.

try to calibrate step by step, aka get an good GSM Channel, type it in, and try to kal again. then type it in the PPD box. 

Holger