The DCS turn off code is 132 hz. So, 131.8 hz ctcss and dcs could be a problem. Otherwise we ran dcs with paging tones because tone coded squelch and paging tones do have issues. I would think the two would be OK, but where are you going to find a radio to encode tone and dcs at the same time?
If you mean both on the same repeater at different times - no problem notwithstanding 131.8 hz. We have mixed ctcss and dcs on community business repeaters with no ill effects. Steve NU5D DaveH wrote: > chances are one will interfere with the other. They would but be present > and active at the same time. I have never seen it done successfully. > David R. Henry LME > Licensed Master Electrician > Amateur Radio W2DRH > Member ARRL > Accredited Instructor >