Does anyone know the trick/pin/programming to controlling the pl encode (channel guard) on a Mastr IIe with external logic? I have a UHF repeater that has the pl encode follows the pl decode and am slaving a 2m Mastr IIe to it thru a NHRC5. All the logic is present in the NHRC5 to do this as it has an output for control of a pl encoder. I am leaving the controller in the Mastr IIe active so that its port can be turned off in the NHRC5 and become a stand alone repeater when needed. No bells and whistles in its controller but it takes care of pl decode/encode, short tail and auto cw IDer. When it is slaved to the NHRC5 and its UHF repeater all the IDs, and courtesy tones will be going out with the pl encoder active as it currently stands.
What I want to do is to control the MastrIIe pl encoder so that it follows the UHF repeaters PL decoder when they are slaved together. Figured out how to cause the PL encoder of the UHF repeater to follow the pl decoder of both radios when connected together easily enough. So where to tie logic in to control the encoder in the Mastr IIe? On the backplane P3 pins B6 and C12 look promising but so far no luck. Perhaps I am missing something in the programming of the Mastr IIe controller? I can turn the CG encode on and off in the programming for the local PTT options, just have not found what pin to control for turning the local PTT CG encoder on/off. The reason behind all this is so that we can run tone squelch and never hear any house keeping signaling, ie, IRLP and echolink connections stay devoid of long key ups, noise, etc.. Oh, did it mention that it is a MastrIIe? :-) Thanks for any help on this, hopefully sooner then later as I am racing the snow level to get this project up in its home before its snowed in. -Dave, KB7SVP
