Denver Metro APRS Network Analysis

August 4, 2002 19:32 thru August 5, 2002 19:54

Here is a breakdown on packet radio activity over a 24 hour period in the Denver area. This data was collected with APRS Net Spy.

The data collection is dependant on the location of the receiving station.

All data was received over the RF network, 144.390 MHz. Any stations outside of the local area have either been repeated via HF gates or I-gates onto the local RF network.

The data includes ALL packets heard. This includes original transmissions (in some cases) of packets and each repeated copy of that packet via various digipeaters.

Here is the overall picture:

notes:
The per minute, hour and day figures above are continuously calculated by APRS Net Spy. They are not really needed here, however they do come in handy when you only run the program on the network for an hour or two and wish to get an estimation on what activity looks like for a particular day.

I think I still have some work to do on the software used category as I'm sure there are numerous Pic and Kenwood categories on the air. I'll get right on that. :-)

Here are some graphs of this data:

Above graph shows the number of Stations transmitting each type.

This graph shows how many packets of each type were received at my station. Stations often transmit multiple types.

If properly configured, the unproto address indicates which type of software is being used to generate the APRS activity.

Here are two ASCII delimited text files that should import straight into any spread sheet program that will allow you to view this data any way you choose. The first file contains the overall network data (exactly what is shown at the top of this page), the second contains summary data about each of the individual stations heard on the network during the 24 hour period.