"Stephen H. Smith" <wa8lmf2 at aol.com>, Mon, 23 Apr 2007 09:01:18 -0700: >Supposedly the second harmonic of 50 hz AC power in Europe (power supply >ripple) might cause false decodes with 100 Hz CTCSS. (North American >power is all 60 Hz.) OK. See follow-up to another reply. -- 73 de Jan, LA2BBA Hvaler, Norway