I dont have scope unfortunately. So what I did was hook up an IR receiver to a PIC, and had it sample it every 10uS and output it to my PC which I then put into excel and made a graph. The pic attached has the signal from my TV's remote at the top, and the signal from my home made remote below. The scale on the bottom is in 10's of uS.
As you can see, the timing is pretty close. I would have thought if it was a timing issue, it simply wouldn't work at all instead of bad range?
I'm going to try 38khz at 25% and see how that goes.




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