Just received this via email:
Subject: COLORADO CONNECTION BULLETIN - Breckenridge
Date: Wed, 3 Jul 2013 09:39:21 -0600
As most users already know, the Breckenridge site has been a source of interference in the fall every year as winter approaches. Last fall we made a slight frequency change from 146.79 to 146.805 to try to minimize that problem and we also announced at that time that a frequency change to 147.39 would happen when access to the site allowed the necessary duplexer change. That change is going to happen this week-end!
Frequency change at the Breckenridge site will happen sometime this week-end.
The new frequency will be 147.39 (123.0)
and the tx offset will be plus(+)
Re program your radio and use the system