Looking at my stats, I see “Trailing” and “Last” numbers. How do those terms differ? I thought I knew what “trailing” meant.
Is last the last 24 hours, and trailing the previous 24, prior to last?
My real question is why my MLAT positions are so low, around 100 on many days, while my ADS-B is over 3000.
Is this because all of the flights around me are equipped with ADS-B?
No, that’s not it, because my SkyView sometimes shows a high number of AC with no position.
Just now, it was 12/4. Should my nearby piaware compatriots be helping me to resolve those with MLAT? I only have one MLAT listed right now, and it’s 3 miles away from me. I actually saw it change color to MLAT, as I was viewing. That one was coming in from the north, and has now stayed MLAT as it goes farther south, into the populated SF Bay Area, and stopped getting records, starting to age, at 37 miles.
Looking at the site closest to mine n112 confuses me. There are three stations, listed with Nearest Airport as three different ones, none mine. He does have MLAT enabled, also with the low numbers.
Multilateration (MLAT): Supported / Enabled (synchronized with 84 nearby receivers)
My position and altitude are exact. (GPS nut for 20 years).
How many stations are needed reading a single aircraft for it to be resolved by MLAT?
It seems like I need some help to the north. Can I see a plot of all of my “nearby”, or all of the MLAT that I sync with? They might all be south, towards the population center.
I had been thinking about giving a piAware station to a friend near 39,-122.7, where I want better coverage for low position-only flights, anyway.
As I look at the generic ADS-B overview map, I see that there are no stations at all where I might like to have some.