I got a 276-137B which the package shows is 40kHz
38kHz is the Suggested Value, I think the 276-137A might be.
The Data Sheet says it has a +/- 4kHz filter width, But not sure what this sheet is really for !!!
Anyhow, I wired this with a I-Opener keyboard cord, Module on one side of the Coiled section, the Connector & Resistor on the other end. (No Cap)
I plugged it in, & ran the software. If I go to Raw Data I can see I am Polluted.
the Software is seeing Noise of some sort.
It's fast, Tying up the System with the amount coming in. I can't Close this Window without Task Manager & End Task. Sometimes the input will pause. a Remote IR Signal Will Start it again.
I don't think this is IR Noise. I put a Red Lense over the sensor from a WebSurfer. & My Hand over the sensor doesn't seem to really affect it.
I should have connected the Cord shield to Ground & the Module Case.
Another point of Interest, the Min Output is 0.5VDC not 0
This will really mount sweet if We can get it to Work Good.
AnyOne else Playing along ???