Our experimentation with 9600 baud APRS in the Puget Sound region for the past year + shows it works, and works great. We have a dedicated 9600 baud APRS infrastructure growing on 440.800MHz and will continue our development.<div>
<div><br></div><div>In a recent message with Bob WB4APR, re the 445.925 frequency.... he is recommending that as a UHF voice coordination frequency for APRS, rather than a data freq.</div><div><br></div><div>We will continue checking with our regional coordination authorities in hopes of formally designating 440.800 for 9600 baud APRS. In reviewing the WWARA band plan for UHF, 440.800 does not fall into any category for other use, so works well with our plans.</div>
<div><br></div><div>Feedback appreciated..... will 440.800 work elsewhere in the country? We're hoping for a single UHF frequency to continue development of a 9600 baud infrastructure.</div><div><br></div><div>For those of you in larger metro areas, when you listen to 144.39 and all the packet activity, do you seldom hear a pause between packets? If so, you should pursue UHF 9600 baud development where the packets are much shorter and propagation seems to be working pretty darn good. We're having lots of success with both D700/D710 and KPC-9612 w/Icom or Alinco 9600 data radios for TNCs.</div>
<div><br></div><div>We also have a very successful 9600 baud VHF infrastructure growing on 144.35 in the Puget Sound region.</div><div><br></div><div>There's lots of room for more informational data on a 9600 baud system, and our guru's are busy exploiting that now.</div>
<div><br></div><div>Dave K7GPS</div><div>NWAPRS Lead Coordinator</div></div>