Do the Mastr II 800 MHz receivers have the "tin whisker" problems that some of the other bands do? I have one I converted to 900 MHz and the sensitivity will not go below 2.2 microvolt's for 12 db of SINAD. I have tuned it right by the book and it never gets any better. I have not opened up the helical resonators, but that will be the next step.
Thanks Jack K6YC
