Bandwidth consumption

[SoNic67]

@rugomol

The programs dump1090 and modesmixer2 worked in such a way that each received ADSB message (usually 16-24 bytes in size) was sent each in its own IP packet .

That’s not true for dump1090-fa and piaware. Piaware waits 10 seconds and then sends multiple ADS-B data signals concatenated in the same IP packet (if there are received signals to concatenate in that period of time of course).
If MLAT is not selected, the software waits even more before sending - it will make a difference mostly in areas with low plane counts.

Any way to reduce data usage?

For normal ADSB on PiAware, an internet packet is sent out when it is filled up with messages OR 10 seconds has passed a partially filled packet will be sent. This minimizes the header overhead. I haven’t looked into how modeSmixer does it’s thing. If it is sending 1 ADSB message per packet I can see how this can run into data usage problems. PiAware also has some code to limit the number of messages that can go into the packet. Like if a plane isn’t changing altitude or heading then we will bl…