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<div class="moz-cite-prefix">TNC Side - Instead of a hardware TNC
and limited 80s/90s firmware, how about an RPI3 with a UDRC for
the radio interface and Direwolf (
<a class="moz-txt-link-freetext" href="https://github.com/wb2osz/direwolf">https://github.com/wb2osz/direwolf</a> ) for the soft TNC. BPQ32
(linbpq) is available for the RPI and works well. That will give
you a reliable, flexible, and expandable system that also comes
out cheaper.<br>
<br>
73-KY9K/Brian<br>
<br>
<br>
On 6/1/2016 15:56, Kenneth Finnegan via aprssig wrote:<br>
</div>
<blockquote
cite="mid:CAFS5k-huSTP3dG3vNCynZO7cDtEYP5qDecD1RM58HtF3ZFOSzQ@mail.gmail.com"
type="cite">
<div dir="ltr">Ebay user buyhitek lists CDM1250s with the
403-470MHz split (which he incorrectly lists as 403-512MHz) in
lots of 1, 5, and 100: <a moz-do-not-send="true"
href="http://www.ebay.com/itm/301670665474">http://www.ebay.com/itm/301670665474</a>
<div><br>
</div>
<div>To answer Erv's question, I've never used them at 9600, but
the Moto 16pin does give you direct discriminator and
modulator access, so I'd be shocked if they didn't work well
for it.</div>
<div class="gmail_extra"><br clear="all">
<div>
<div class="gmail_signature"
data-smartmail="gmail_signature">--<br>
Kenneth Finnegan<br>
<a moz-do-not-send="true"
href="http://blog.thelifeofkenneth.com/" target="_blank">http://blog.thelifeofkenneth.com/</a></div>
</div>
<br>
<div class="gmail_quote">On Wed, Jun 1, 2016 at 2:23 PM,
Robert Bruninga via aprssig <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:aprssig@tapr.org"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a></a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I
guess because it would take a lot of work fussing
with Ebay for days on end trying to scrape up a
bunch of identical radios. Or are you saying that
they can be found in 20 unit quantities at that
price? If so, that’s not a bad approach.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">But
I do want the 9600 baud backbone to begin with
identical units to minimize the unknowns in
getting it up and running.</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bob,
WB4aPR</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
Kenneth Finnegan [mailto:<a moz-do-not-send="true"
href="mailto:kennethfinnegan2007@gmail.com"
target="_blank">kennethfinnegan2007@gmail.com</a>]
<br>
<b>Sent:</b> Wednesday, June 01, 2016 5:04 PM<br>
<b>To:</b> Robert Bruninga; TAPR APRS Mailing List<br>
<b>Subject:</b> Re: [aprssig] E Coast 9600 baud
backbone 15W radios (firmware?).</span></p>
<div>
<div class="h5">
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">I'm still a bit unclear;
why are you trying to homebrew data radios
with out-of-band PAs when you can get 25W UHF
CDM1250s on eBay for less than $100 a piece?
I've been converting all my packet stations
over to CDM750/CDM1250s; the standard Motorola
16 pin IO connector is fantastic for packet.</p>
</div>
<div>
<p class="MsoNormal"><br clear="all">
</p>
<div>
<div>
<p class="MsoNormal">--<br>
Kenneth Finnegan<br>
<a moz-do-not-send="true"
href="http://blog.thelifeofkenneth.com/"
target="_blank">http://blog.thelifeofkenneth.com/</a></p>
</div>
</div>
<p class="MsoNormal"> </p>
<div>
<p class="MsoNormal">On Wed, Jun 1, 2016 at
9:40 AM, Robert Bruninga via aprssig <<a
moz-do-not-send="true"
href="mailto:aprssig@tapr.org"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a></a>>
wrote:</p>
<blockquote
style="border:none;border-left:solid #cccccc
1.0pt;padding:0in 0in 0in
6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">By
the way, I may have found a possible
UHF exciter to get the radios
working on 420 MHz, but the question
is, is using the KA Packet nodes in
the Kantronics KPC-9612’s the only
way to do the level 4 network?
Although I am sure we can find
enough KPC9612’s for the 15 sites,
I’m wondering about long term
viability?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Is
there software out there to
replicate the KA-NODE network (I
think it is same as THENET or
theoriginal NETROM nodes? Othern
than the nice off-the-shelf approach
of the KPC9612’s?</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Bob,WB4APR</span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">From:</span></b><span
style="font-size:11.0pt;font-family:"Calibri","sans-serif"">
Robert Bruninga [mailto:<a
moz-do-not-send="true"
href="mailto:bruninga@usna.edu"
target="_blank"><a class="moz-txt-link-abbreviated" href="mailto:bruninga@usna.edu">bruninga@usna.edu</a></a>]
<br>
<b>Sent:</b> Friday, May 27, 2016
11:31 AM<br>
<b>To:</b> TAPR APRS Mailing List<br>
<b>Cc:</b> Robert Bruninga<br>
<b>Subject:</b> E Coast 9600 baud
backbone 15W radios.</span></p>
<p class="MsoNormal"> </p>
<div>
<div>
<div>
<div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">At
Dayton I picked up a box of
25 UHF data radios for the E
Coast 9600 baud backbone
project.</p>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">Turns
out, they are on 824 MHz. But
they have a 15 W driver stage
that can give us 15 Watts in
the 420 MHz amateur band if we
can find a simple UHF
transceiver with 1 Watt
output. ALl we have to do is
bypass the final 45W PA and
add a TR switch.</p>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">Then
add a TNC node and we are done.</p>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">See
the info on these radios at the
bottom of this page:<br>
<a moz-do-not-send="true"
href="http://aprs.org/ec9600net.html"
target="_blank">http://aprs.org/ec9600net.html</a></p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">So,
does anyone have ideas for the 1W
UHX XCVR that we can split out the
TX and RX separately so we can use
these PA's?</p>
</div>
<div>
<p class="MsoNormal"
style="margin-bottom:12.0pt">The
data radios include a GPS
receiver, but we wont need thoes
in this application.</p>
</div>
<p class="MsoNormal">Bob, WB4APR</p>
</div>
</div>
</div>
<p class="MsoNormal"
style="margin-bottom:12.0pt"><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="http://www.tapr.org/mailman/listinfo/aprssig"
target="_blank">http://www.tapr.org/mailman/listinfo/aprssig</a></p>
</blockquote>
</div>
<p class="MsoNormal"> </p>
</div>
</div>
</div>
</div>
</div>
<br>
_______________________________________________<br>
aprssig mailing list<br>
<a moz-do-not-send="true" href="mailto:aprssig@tapr.org">aprssig@tapr.org</a><br>
<a moz-do-not-send="true"
href="http://www.tapr.org/mailman/listinfo/aprssig"
rel="noreferrer" target="_blank">http://www.tapr.org/mailman/listinfo/aprssig</a><br>
<br>
</blockquote>
</div>
<br>
</div>
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<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="http://www.tapr.org/mailman/listinfo/aprssig">http://www.tapr.org/mailman/listinfo/aprssig</a>
</pre>
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