This info I found somewhere in the net, have not tried yet, hope this helps in your project.
"This Repeater is in use, with easy Programmable IRLP mods made for TX PL on RX PL. Program any pin but one's below for TOR, state active high Program pin 24 for PL encode on, and pin 25 for PL encode off, set the state of pin 24 for high and pin 25 for low, 2 jumpers needed from the TOR pin to pins 24 and 25 now repeater will only encode while it decodes, and will drop encode when user unkeys." Juan Subject: Re: [Repeater-Builder] Re: PL (CTCSS actually) Encode on Kenwood tkr-850 and tkr-750 Correo electrónico comprobado por Spyware Doctor (6.0.0.385) Versión base de datos: 5.10840 http://www.pctools.com/es/spyware-doctor-antivirus/

