IF you ever get home-sick about the poor IR repeating quality you once had, the Dinky Link receiver you got in your kit should have a small pot on it. Fiddle with it a bit and I'm sure you can cause it to start missing codes.

I got a Dinky Link as part of the similar kit I bought for just over $20 but I hadn't tried it out until just a couple of days ago, since I have been using the flush-mount bullet-type receivers. Well, whomever had it perviously definitely screwed around with that pot and its operation is totally inconsistent. Hopefully I can tune it up as I'd like to continue using it for testing.