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Andrew Rich (Home) wrote:
<blockquote cite="mid:FF2DD068D8014BD2A217544EF0D77F28@home9e3111fa81" type="cite">The com port speed seems to be the "head" connector speed
?
<br>
<br>
The PC port speed is the speed of the connector on the body ?
<br>
<br>
Odd. I would have thought it passed straight thru
<br>
<br>
I need a diag
<br>
<br>
<br>
</blockquote>
<br>
<br>
<br>
The main chassis of the TM-D710 is absolutely identical to the non-APRS
TMV-71. <b>*ALL*</b> APRS functionality (firmware, TNC, TNC and GPS
ports, etc) has been moved into the control head. <br>
<br>
Kenwood sells the head alone as the RC-710. You can upgrade a TMV-71
to a D-710 merely by replacing the TMV's oem head with the RC-710.
Further the RC-710 can be usedas an all-in-one self-contained APRS
terminal (i.e. sort of a Ham Hud package), by making TX/RX audio, PTT,
and squelch connections with any 2M rig . In this standalone mode
(once you provide the 8 VDC power the head requires), the controls for
radio functions such as volume, squelch, PL tone, etc don't do anything
-- only the APRS/TNC-related menu items function. <br>
<br>
As a result, the serial port on the head is exclusively for
APRS-related TNC functions. <br>
<br>
<br>
<br>
The physically-identical serial port on the main chassis is
exclusively for radio "CAT" (computer aided tuning); i.e. programming
frequency memories, remote-controlling band, frequency, repeater
offsets & tones, etc. <br>
<br>
The two 8-pin mini-DIN serial jacks (on the head, and on the main
chassis) have the same pinout as the serial ports on classic Apple
Macintosh computers (during the era before USB when Macs HAD serial
ports!). A Mac serial cable with a mini-DIN on one end and a DB9 on
the other (intended to connect non-Apple serial devices to a Mac) will
work with both these connectors. Around here, at least (southern
California), you can buy 8-pin-MIni-DIN-to-8-pin-Mini-DIN "Mac
serial cables" at large computer or electronics stores for USD $7-$10.
Buy a 10-footer and cut it in half to get two 5-foot cables with a
molded-on Mini-DIN plug on one end, and flying leads for your own DB
connectors on the other. <br>
<br>
<br>
<br>
The 6-pin MIni-DIN "packet/data" jack on the main chassis is identical
to such jacks on many other Japanese ham radios of the last two decades
or so. It provides raw discriminator audio, de-emphasized and
squelched audio, TX audio in, PTT and COR/Squelch Indicator out.
Despite the misleading labeling of this as a "data" jack, THERE IS NO
DATA (in the sense of RS-232 or TTL level streams) HERE -- only tx and
rx AUDIO. Full details on this connector are in this document on my
website:<br>
<br>
<a class="moz-txt-link-rfc2396E" href="http://wa8lmf.net/miscinfo"><http://wa8lmf.net/miscinfo></a> <br>
<br>
Scroll down the list of downloadable stuff and look for: <br>
<br>
<b>MiniDIN6-Packet.pdf <br>
<br>
</b><br>
--<br>
<br>
Stephen H. Smith wa8lmf (at) aol.com <br>
EchoLink Node: WA8LMF or 14400 [Think bottom of the 2M band]<br>
Skype: WA8LMF<br>
Home Page: <a class="moz-txt-link-freetext" href="http://wa8lmf.net">http://wa8lmf.net</a><br>
<br>
JavAPRS Filter Port 14580 Guide <br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/aprs/JAVaprsFilters.htm">http://wa8lmf.net/aprs/JAVaprsFilters.htm</a><br>
<br>
"APRS 101" Explanation of APRS Path Selection & Digipeating <br>
<a class="moz-txt-link-freetext" href="http://wa8lmf.net/DigiPaths">http://wa8lmf.net/DigiPaths</a> <br>
<br>
Updated "Rev H" APRS <a class="moz-txt-link-freetext" href="http://wa8lmf.net/aprs">http://wa8lmf.net/aprs</a><br>
Symbols Set for UI-View, <br>
UIpoint and APRSplus:<br>
<br>
<b><br>
</b>
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