Chris, I'm planning to use my recently aquired loop outside with a large coax based shielded loop. I'm also planning to remount both PCB's in cast aluminum enclosures which are both just large enough for the boards. Do you see any problems with the metal enclosures affecting the tuning? My interest is primarily with 60Khz WWVB, to the extent that if it works well at 60Khz I have no concerns about the remainder of the spectrum.
