Yes, I had this happen with the LRP speedo. Apparently it only puts out 5.8v while the rest of the speedos out there puts out 6v. So if you run a digital servo and a LRP speedo, it doesn't have enough voltage to constantly feed to the personal transponder, therefore the transponder is on and off. I run KO equipment so the 301F receiver suffers from this, but the new 302F receiver's got a new circuitry inside that sustain the necessary 6v. I'm going to try that out this weekend and see if that fix the skipping transponder problem
I'll keep you guys posted.
Steve Wang