How often should the Pi Data Feed Update?

FlightAware ADS-B Flight Tracking
1

I typically get a “Data Feed: Live - less than a minute ago”, but when I changed my antenna it now says over an hour ago but the “Feeder Check-in: Live - less than a minute ago”

How often should it update?

Are the two related?

Data Feed: Live - less than a minute ago
Feeder Check-in: Live - less than a minute ago

2

Feeder check is exactly that - the Pi saying “Yeah hey I’m still here and working OK”
Data Feed is the last message/plane you sent up to the server. So if yours says over an hour ago, then you’re not feeding any planes.