Binghamton, NY Nov 10, 2009 #7 I'm not acquainted with meter operation, but I might suspect that it has to send out the switching voltages (13v for odd and 18v for even). And, if you should see the other sats it ought to ship the 22khz tone. I'm not a https://dienphucthinh.webflow.io/posts/thiet-bi-chong-set-lan-truyen-val-phoenix-contact-tai-dien-phuc-thinh