Archive for date: August 3, 2009

Decoding packet….

August 3, 2009 | Amateur Radio | By: Mark VandeWettering

It’s late, so I am not figuring this out, but I seem to be getting quite a bit of ripple in the output of this demodulator. I bet that it is because I don’t know what I am doing. Oh well. More for later, I guess.

No luck on ISS SSTV, but NOAA 17 looks nice

August 3, 2009 | Amateur Radio, Amateur Satellite | By: Mark VandeWettering

I tried to record the pass of the ISS as it came over, but I heard nary a peep (or beep) from it as it went over. Annoyed, I did a quick search, and found that the NOAA 17 satellite was just coming up. I retuned and hand tracked that, yielding the following rather nice […]

FET Transistor Homemade From Cadmium Sulfide Photocell.

August 3, 2009 | Amateur Radio | By: Mark VandeWettering

I’ve blogged about the experiments of Nyle Steiner before, but just recently got back to his Spark Bang Buzz website again, and found that he’s added a couple of interesting bits. In particular, he shows how to modify a common Cadmium Sulfide Photocell to act like a field effect transistor. The voltage gain provided is […]

Passing the Amateur Extra test by guessing…

August 3, 2009 | Amateur Radio, Math, Programming Languages, Python | By: Mark VandeWettering