Thanks. This did the trick. Mine was close but didn't have the 47K from the base to the emitter. I just started from scratch on the circuit and after fixing some mis-wiring from not paying close enough attention (I am still in a fog from being out playing with my band last night) everything works great.
Thanks everyone for the input and help with this. I now have my repeater running echostation and echolink on the same PC using a com port splitting program. Hopefully it will stay stable. From: [email protected] [mailto:[email protected]] On Behalf Of Thomas Oliver Sent: Saturday, April 18, 2009 9:59 PM To: [email protected] Subject: Re: [Repeater-Builder] Re: MASTR II PTT This the circuit I have always used to key a Mastr II with cos voltage source inside the Mastr II. It requires a positive going voltage to key the Mastr II I know +7.5 volts works with the values listed. tom
