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What makes a Pro code test Amateur a Troglodyte?
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October 14th 03, 05:24 AM
Hans K0HB
Posts: n/a
(Len Over 21) wrote
The ONLY way a "spark" transmitter could send anything called
communications information was by on-off keying.
Damn, Old Timer, you got it wrong again! In Boston, on Christmas Eve
of 1906, modulating a spark transmitter, Reginald Fessenden made a
holiday broadcast of a short spoken introduction, some recorded
Chistmas music, and played "Oh Holy Night" on a violin.
Obviously a "spark" transmitter was not limited to ONLY (your
emphasis) on-off keying.
Sunuvagun! Good luck on this one now.
With all kind wishes,
de Hans, K0HB
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