Galfert,
I am an amateur radio operator (a.k.a. Ham) and I have what is called a digipeater/igate/weather box connected to both the Internet and my 2 meter VHF radio.
Here is a sample of the raw APRS data for this station (KE8DAF-13):
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF::KE8DAF-13:PARM.Vin,Rx1h,Dg1h,Eff1h,A5,O1,O2,O3,O4,I1,I2,I3,I4
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF::KE8DAF-13:UNIT.Volt,Pkt,Pkt,Pcnt,None,On,On,On,On,Hi,Hi,Hi,Hi
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF::KE8DAF-13:EQNS.0,0.079,0,0,10,0,0,10,0,0,1,0,0,0,0
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF::KE8DAF-13:BITS.11111111,KE8DAF Telemetry
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF:T#073,167,000,000,100,000,00000000
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF:@060227z4525.03N/08348.63W_353/003g012t063r000p017P017h91b10204L000WX3in1 weather
KE8DAF-13>APMI06,TCPIP*,qAS,KE8DAF:@060227z4525.03N/08348.63WrWX3in1Plus2.0 U=12.5V,T=75.2F
The 2nd line from the last has the weather data, the last line has internal temperature and voltage for the unit called a "Wx3in1".
If another APRS transmitter sends packets that is received by my radio, it will also show up in this raw data. (with that station's call sign and some other parameters)
You are only seeing a fraction of what is going on in APRS land.
If you go to
aprs.fi and enter your location (or pan around) you can see a myriad of these stations and trackers all over the world. The icons that show "Wx" are weather stations including the CWOP ones. You can also view raw data on aprs.fi.
Greg H.