I have inherited a older Cirrus Radio and such. It was mentioned to me that the Cirrus radio could not be used anymore because of the allowed frequencies have changed by law or something like that. Does anyone care to confirm or elaborate?
Unless it was updated to "narrow band" (1991-type accepted), it cannot legally be used. Old radios can not longer be legally updated. The new frequencies are a more tight bandwith, and we now have "odd" frequencies between the old "even" ones. The old "color flag" frequencies are no longer in use, I believe. Here's a list of the new frequencies and channel numbers: