Herve F8EHJ, Good question! Henry/n9hm ----- Original Message ----- From: "F8EHJ" <f8ehj at free.fr> To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com> Sent: Wednesday, August 19, 2009 12:21:52 PM GMT -05:00 US/Canada Eastern Subject: [TenTec] ALC - How does it work ? Hello,