Over the weekend we gained an hour. We went from CDT to CST. The time change didn't seem to adversely affect anyone. Even Ron KO0Z made it on time to Denny's on Dorset for our monthly breakfast. In fact he was early!
Pictured from L to R: Debbie KC9ULA, Armand KD0PXF, Mel K0PFX, Sam W0PCE, Mike N0OBI, Herbert AF4JF and Harry WA0CNS. Not pictured is the photographer Ron KO0Z.
The technical discussion centered around SLAMS current DIY project. Infrared receivers/transmitters. Dr. Sam Green W0PCE has extensive experience working with optics. He brought two IR receivers. One he built a couple of decades ago and the current board SLAMS is experimenting with now.
SLAMS current IR receiver board built by Sam
Dr. Sam's photo diode on his older, prototype IR receiver
The flip side containing the IR electronics of Sam's IR receiver
After breakfast, Herbert and Harry went to upper Creve Coeur Park to test Herbert's Bulgarian 3.4 GHz transverter.from SG Lab. It puts out 3 watts and it is reasonable priced. Harry used his Pluto SDR.
AF4JF's SG Lab 3.4 GHz transverter, 432 IF.
Herbert's 1.2 GHz amp
Harry WA0CNS listening for AF4JF's 3.4 GHz signal at Creve Coeur Park
AF4JF's 3.4 GHz signal on the panadapter screen
After succesful testing on 3.4 GHz side by side, Herbert AF4JF continued the SLAMS microwave tradition of testing of increasing the distance. Looking straight ahead, between two trees, AF4JF's Chevy Traverse can be seen on the other side of the park. Approximately 125 yards away. Another successful, Sunday, SLAMS test!
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