Question for those that know more about this than I do......

When our Kitfox was built, we installed a new but very basic (read that cheap, I think) King Encoder.

The first one got alzhiemers a little less than two years ago and could not be adjusted to spec by my avionics shop. So got a replacement of the same model....at the time of installation, the Avionics person got the new one calibrated right on the money. I periodically do mode C checks with a local tower to be sure things haven't gone south ....alas, the gremlins have been active again and this week my tower reported a 600 foot deviation from my altimeter (which I am pretty sure of because I was occupying the same altitude as others in the pattern). Tower was kind enough to let me get my business done at the 'port and depart after shutting off the mode C.

Two questions

1) Are King encoders basically junk?

2) Anyone know the track record of other encoders (Trans cal for instance which has a 4 year warranty)? What have you had good luck with?

Thanks in advance for your comments.

Dave S
Kitfox 7 Trigear
912ULS
St Paul, MN