On Fri, 04 May 2007 09:33:59 -0700, Richard Clark
wrote:

Type 43 should show
a frequency peak roughly ten times above your current data's frequency
peak.

This may have been obscure. The peak of isolation (as revealed in
common mode resistance) should occur in the low VHF region, not the
low HF.

73's
Richard Clark, KB7QHC