You don't have the latest version of NIFOG then. Version 1.6, May 2015, now recommends both CTCSS encode and decode on the non-federal interoperability channels. Tom On 11/14/2015 13:53, Eric Vought wrote: > but here, we > program our public service radios to send tone and receive open. That > practice is also recommended in the NIFOG for the interoperability > channels