Bryce, The answer is yes, but if you are going to do a lot of AM transmit, spring for the 6kHz filter. 73, Don W3FPR On 2/27/2015 6:09 PM, k7ua at comcast.net wrote: > I have a K3 with an FM filter that I use on 2M. It receives AM fine with this filter. Will the K3 transmit decent AM while using the FM filter? It appears to work. >