Gregg, There are filters in the PR6 that are tuned to 6 meters. I suspect that on 10 meters it would act as an attenuator. 73, Don W3FPR On 10/27/2012 12:20 PM, Gregg W6IZT wrote: > Has anyone tried to use the PR6 on 10m to see if it offers any improvement > in S/N ratio? I am away from my shack, so I am unable to test it. > >