It is not a good idea to “peak” the IFs for maximum volume of a radio station. The radio should be aligned with a sweep generator connected to the oscilloscope. What you actually want is to tune the radio so the bandwidth looks flat topped with steep skirts. This gives your audio high quality. If
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I occasionally think of what possible things might have been sent over this microwave radio. When I was in Germany in the army we had microwave telecomm links on the tops of hills to connect our hawk missile sites to our headquarters. We had the voice channels connected to our switchboard and if you were
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What https://m.facebook.com/groups/276059605530869/permalink/654477951022364/?ref=share&mibextid=NOb6eG
Uses a 12 key keyboard and texts like an old Nokia phone with multiple keypresses. http://www.technoblogy.com/show?2AON&fbclid=IwQ0xDSwL88ShjbGNrAvzr1WV4dG4DYWVtAjExAAEeX19OxuYe1QO8mrox71F6Zl_KCUppukTfJn3iSrHyEVT51xLwOmz2jhPHLKY_aem_is4HJCST113TNXDXWaTXGw
https://ieeexplore.ieee.org/document/8874589 Matt Undecided showed a photo of it.
Dubious info.? https://www.facebook.com/reel/680342785062427/?mibextid=9drbnH&s=yWDuG2&fs=e
This is hard to believe. It’s a lot of work to do on a cheap AM radio. But it gives me a lot of ideas. I wonder how many hours it took to do this, we see it happening in nust a few minutes. https://www.facebook.com/restorationpretty/videos/591611740013679/?mibextid=9drbnH&s=yWDuG2&fs=e
In the 1920s the TRF – tuned radio frequency – radios were hard to tune and their performance wasn’t very good. In 1929 the radio manufacturers started selling superheterodyne radios that had only one tuning knob, not several like the TRFs had. No more fiddling around with knobs to try to get good reception. Plus
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This short Ted Talk about storing heat in bricks. https://www.facebook.com/reel/2423128204690212/?mibextid=9drbnH&s=yWDuG2&fs=e
The US would be in a world of hurt. https://www.facebook.com/reel/1415952769223685?mibextid=9drbnH&s=yWDuG2&fs=e
