<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Radios (transceivers) don't do KISS, they do audio. TNCs do KISS
and both the OpenTracker USB and the Tracker3 can do KISS.<br>
<br>
Lynn (D) - KJ4ERJ - Author of APRSISCE for Windows Mobile and Win32<br>
<br>
On 2/15/2012 1:29 PM, Bradley Haney wrote:
<blockquote
cite="mid:CAPg-ThSoOi1h9uP78Cygg28pPXDmtcS2emZO0NM63kH49JnV_g@mail.gmail.com"
type="cite">will we be able to possbile use these in a KISS mode?<br>
<br>
<div class="gmail_quote">On Wed, Feb 15, 2012 at 12:12 PM, Scott
Miller <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:scott@opentrac.org">scott@opentrac.org</a>></span>
wrote:<br>
<blockquote style="BORDER-LEFT:#ccc 1px solid;MARGIN:0px 0px 0px
0.8ex;PADDING-LEFT:1ex" class="gmail_quote">Hi all,<br>
<br>
I've been playing with some half-watt 70 cm data transceivers
lately. I'm currently testing at 434 MHz, and with the
standard crystal they should cover about 430 to 439 MHz. I'm
not really familiar with the 70 cm band plan and figured I'd
check here and see if people consider that a reasonable part
of the band to be working in.<br>
<br>
I've got another small batch of them coming soon and might
start selling a board based around it for people who want to
experiment. Right now I'm using an OpenTracker USB variant.
It's currently running at 4800 baud with some basic FEC - a
(7,4) Hamming code with interleaving, not fancy but easy to
implement. The transceivers will go up to 115200 bps. When I
have time, I'll see if they can be made to inter-operate with
G3RUH TNCs, but for now I'm going to assume that won't work.<br>
<br>
The really attractive part is that they're cheap - retail
price should be not more than 1/3 what we're selling the
half-watt transmit-only 2-meter modules from SRB for, and
they're about the same size.<br>
<br>
There are still some bugs to be worked out, but the
OpenTracker USB (and by extension the Tracker3) will presently
work transparently with these radios, doing APRS at 4800 baud
with error correction. I'll be working some more on them to
improve mesh routing and channel access control to try to make
them more suitable than vanilla APRS for short range, high
rate tracking applications.<br>
<br>
Scott<br>
N1VG<br>
<br>
_______________________________________________<br>
aprssig mailing list<br>
<a moz-do-not-send="true" href="mailto:aprssig@tapr.org"
target="_blank">aprssig@tapr.org</a><br>
<a moz-do-not-send="true"
href="https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig"
target="_blank">https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig</a><br>
</blockquote>
</div>
<br>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
aprssig mailing list
<a class="moz-txt-link-abbreviated" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a>
<a class="moz-txt-link-freetext" href="https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig">https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig</a>
</pre>
</blockquote>
<br>
</body>
</html>