It looks like the problem is in the filter you specified for the APRS-IS port. You have a filter of "r/100". However, that is not correct syntax for an "r" filter. For your location, an expression similar to "r/42/-88/100" (latitude/longitude/range) would work correctly. You might have intended to use an "m" filter, where the circle center is assumed from your beacon position. I'm not sure if any of the different programs used for APRS-IS backbone servers would accept the invalid syntax of the "r" filter you are using and assume you meant a "m" filter, so the variation might depend on which specific backbone server you connected to at any time.
Andrew, KA2DDO
author of YAAC
