My APRS track for today (May 27, 2015)

I'm getting ready for my summer vacation trip, and I'll be taking an Amateur Radio (Ham radio) transceiver along to keep me company on the trip.

One of the things I can do with this radio is transmit my position periodically.  I wanted to see what the track looked like from the http://aprs.fi website. The system we use is called APRS, which is an abbreviation for Automatic Packet Reporting System (or, Automatic position reporting system; the original author of the concept doesn't like that)  Hams use it to inform other hams where they are. When my radio receives a signal from another ham who is on APRS, it displays information such as how far away from me he is, in what direction, and any messages he may have embedded in his transmission.  The embedded messages might be what frequency he is listening on.

Generous folks have put up devices known as iGates.  These receive the APRS signals and retransmit  them on the Internet.  Then, several websites take that information, compile it in databases, and display it on tracking maps.  An example of the track for my vehicle today is shown here clipped from the website http://www.aprs.fi

My ham radio callsign is NØSYS, (The second character is a zero) and for my truck I add -9 as my primary mobile station. The track is the light blue line.  You see my truck at the last position near Zirconia on the bottom of the map.

You can see on this plot that I went up I-26 to Arden to go to a restaurant, then to Harbor Freight, and then back home.  Then I went on another trip to NW Hendersonville, and returned via Howard Gap Road.

The track might lead you to believe that I also went through Hendersonville or somehow jumped from Zirconia to Naples.  That's a problem with APRS.  If nobody receives your signal and transfers it to the Internet, through an iGate, then the software just fills in the blanks as best it can.  Actually, on all of my trips, I used Route I26 almost exclusively, except for the Howard Gap segment.

For those interested in the detailed information about my radio and setup:   I'm using a Yaesu FTM-400DM with an external Globalsat BR-355 GPS (the GPS built into the radio works, but is slow to lock up, probably because it doesn't have a good view of the sky) 

My plan is to post either screen captures of the track, such as this one, or else links to the actual track for aprs.fi.  The problem with the latter plan is that the tracks don't last forever on the aprs.fi website.