Prior to implementing my piaware device, I was running rtl1090 through Virtual Radar Server 
and getting a max range in some directions of close to 300sm, with average being 250 in most directions. I am now getting about 25-50sm less in all directions with piaware (still viewing range on VRS). Nothing in my antenna set-up has changed. Is this just a difference in the decoder, or is there something I can look into fixing here?
-Pete