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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal">This year track USNA* to see the annual running of the A/N game football from Annapolis to Phily.</p><p class="MsoNormal"><a href="http://aprs.fi/usna*">http://aprs.fi/usna*</a></p><p class="MsoNormal"> </p><p class="MsoNormal">USNA-1 will always be with the ball while -2,-3,-4 will be shuttling runners.</p><p class="MsoNormal"> </p><p class="MsoNormal">The 8W Byonics MicrotrackTT4’s are set to use Proportional-Pathing so that close in, (simplex/direct) they are updated at a known 1 minute rate making rendezvous practical, while the first digi hop is only once every 2 minutes. And then there is only a regional 2 hop packet once every 4 minutes. This keeps channel loading down an order of magnitude while still providing close in 1 minute special event tracking quality.</p><p class="MsoNormal"> </p><p class="MsoNormal">And, knowing the rate is always one minute direct, 2 minutes via one digi and 4 minutes regional, makes it easy to know when packets are missing and how best to anticipate the nice DeadReckoning header as displayed on <a href="http://APRS.FI">APRS.FI</a>.</p><p class="MsoNormal"> </p><p class="MsoNormal">Bob, WB4APR</p></div></body></html>