[aprssig] 2.5mm stereo plug for THD7A

Stephen H. Smith wa8lmf2 at aol.com
Sun May 8 02:43:49 EDT 2005

scott at opentrac.org wrote:

>I thought most of the Kenwoods used a 3.5mm stereo and 2.5mm mono - could be
>wrong, and I don't have a THD7A myself.  I do carry the 2.5mm mono ones on
>my web store...
The Kenwood D700 mobile and TH-D7 handheld both haveTWO serial ports; 
one for the computer and one for the GPS.  On the D700 the main port is 
a DB9 and the gps port is a 2.5mm jack.  On the TH-D7, both ports are 
2.5MM (probably because of the limited panel space on the handheld 
compared to the mobile).   Further both are stereo (to implement a basic 
TXD/RXD/COMMON non-handshaking 3-wire serial port hookup).

[ The TH-D7 speaker/mic jacks are the traditional pair of one 2.5MM jack 
and one 3.5MM. ]

Stephen H. Smith             wa8lmf (at) aol.com
Home Page:                   http://wa8lmf.com

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