Binghamton, NY Nov 10, 2009 #seven I am not acquainted with meter operation, but I might suspect that it must mail the switching voltages (13v for odd and 18v for even). And, if you need to see another sats it must send out the 22khz tone. I will conceed that http://dienphucthinh.mystrikingly.com/blog/dau-cos-cap-dien-chinh-hang