It took me a while to spell correctly wiedehopf’s name.
I still find difficulty to pronounce it as in German languange all alphabets have to be pronounced, no silent alphabets. The hardest for me to pronounce is the pf combination at the end.
you’re up late?
well, as i was attaching the image it scaled properly, so i guess 24 hours did the trick…anyway i have now added the graphs to my reference side (originally i had on the experimental side only). these tools are great. i would note that on both ref and exp sides with gain of -10 i saw 13% to 16%>-3dB and 2.5%>-3dB with gain of 49.6. what surprised me was that i had higher aircraft reported numbers with gain of -10 (13%to 16%>-3dB). i still recall david baker’s comment re being able to decode up to -1dB RSSI. at least on my system piaware seems able to still decode with a very “overloaded” gain.
when i drop to a gain of 49.6 i see a drop of about 1.1% in aircraft reported from the -10 gain.
That’s to be expected.
Any plane you won’t see close in you have seen before when it was further away from you. (Or will see later when it is further away)
So you will lose in Positions/hour but not in overall aircraft seen.
My guess would be that this is the board produced for one of the Flightfeeder modes or something similar.
You would also need a special antenna for it to make the GPS work probably.
@saihoufung
Is the board on the picture available for purchase somehwere?