Larry, I have the same transponder. When you turn it on you should initially put it on the STB (standby) position. The green light will illuminate steady for twenty seconds while the unit warms up. Once the light goes off turn the knob to on position and continue to ALT (altitude) position if you want to transmit altitude. The green light will flash briefly every time it gets pinged by a radar signal. You can test the unit by turning the knob to TST (test) and if working properly the green light will illuminate and stay on as long as you hold it in the test position.
Mark Jones (N886MJ) Stevens Point, WI E-mail: [email protected] Web: www.flykr2s.com ----- Original Message ----- From: "Larry&Sallie Flesner" <[email protected]> To: <[email protected]> Sent: Sunday, January 22, 2012 5:50 PM Subject: KR> 78a transponder Can anyone familiar with the King kt-78A transponder tell me if I'm supposed to get any kind of indication when I turn the unit on? Does the light only come on when it detects a radar signal? What if I press the "Ident" button? I finished the install today and turned it on while in the hangar and can't tell if it powers on or not. I bought it used (yellow tagged) about 10 years ago and today is the first time it has had power applied. It's been too long since I've flown with a transponder and can't remember the operating mode but I'm not getting a warm fuzzy feeling about this. Larry Flesner _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to [email protected] please see other KRnet info at http://www.krnet.org/info.html
