These screen shots were taken during a trip from the Lansing, Michigan area to Chicago and back on 9 November 2011. All times are Eastern Standard Time; i.e. local to the area. Two receiving systems were being used - MixW as an HF packet modem feeding UIview, and the new UZ7HO "soundmodem" 300 baud HF packet modem sound card app.
Both programs were using the data from a Griffin Electronics "iMic" USB external sound system (details here) receiving the audio from a Yaesu FT-857. In other words, both sound card apps were using the identical received signal from the identical radio through the same sound card.
Note that I kept the computer clock on EST and continued to stamp screen caps in EASTERN time, even while I was in the CENTRAL time zone in the Chicago area. I am citing local (US Eastern) time, rather than UTC, since HF propagation is affected by LOCAL day/night/time of day.
Screenshot from APRSpoint at 1127 EST Mobile was in the
Michigan City, Indiana area, just south of the MI/IN state line.
UIview, Precision Mapping 9.0 and MixW while mobile was in Arlington Heights,
Illinois (far western suburban Chicago) at 1648 EST. The cluster of
overlapping stations are two-meter activity monitored by the Kenwood D700.
The outlying stations are 30-meter HF. Not sure which band the KG6YRB
balloon was on -- most likely 2 meters. (I've never heard of anyone putting HF
on a balloon.)
UIview/MixW zoomed out to continental scale, showing west coast station being
heard while mobile on I-290 about 7 miles due west of downtown Chicago at about
1739 EST.
APRSpoint & UZ7HO soundmodem on Illinois/Michigan state line about 2015
EDT in the evening. MixW was NOT copying the two stations on the west
coast at this point.