This afternoon, I tried in vain, to mend my "better" 10m loop antenna. I failed.
Before, there was a distinct peak when tuned and the SWR dipped significantly on resonance. Sadly, just a few minutes of soldering work left me totally exhausted and giddy. I shall have to try again another day. After about 10 minutes of physical or mental work I am just knackered. Whether this is my stroke or just old age I do not know.
At the moment I am still on 15m FT8 on the "poorer" loop.
1 comment:
NASA has communicated across space via these radio waves — and nothing else — since it began launching humans in the 1950s.
But the agency plans to upgrade to space-laser communication by the time it launches its first astronauts to Mars.
Though lasers also travel at the speed of light, they can transmit data at 10 to 100 times the rate of radio waves, using far less hardware. NASA estimates it would take nine weeks to laser-beam a map of Mars back to Earth, but the process would take nine years with current radio communications.
Hey Roger, I bet you did not foresee this when you started your light beam experiments?
73 Ken g4apb
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