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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-size:12.0pt'>I have a 200D and like it a lot. I want to run a footswitch and am concerned about making a mistake but see the pins (PTT input 3v) 13 and either 21 or 25 (analog ground) appear to be the correct to use to key the transmitter through PTT input for the footswitch. Please confirm that I would be correct in doing this way. I have the extender board also. Can I just use the TRS input for the key in the front or is the RS-232 the better way?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Thanks and 73,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>Dick <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'>W1FYI<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt'><o:p> </o:p></span></p></div></body></html>