[Milsurplus] [ARC5] 1625 and Key Clicks.

[Kenneth G. Gordon]

MY very first question is: "Are these REAL key-clicks, hearable on the air by a receiving 
station at least 10 miles away, or are they simply "key-clicks" heard "locally", like in your own 
receiver?"

"Local" key-clicks are caused by simple sparking at the key and are not transmitted on the 
air.

REAL key-clicks are usually (but not always) caused by too abrupt rise and fall of the RF 
wave-form, but can sometimes be caused by parasitics in the amplifier or driver.

In my experience, "key-click filters" seldom adequately "adjust" the rise and fall times of the 
transmitted carrier, and they very often introduce or accentuate other problems, especially 
chirp.

Ken W7EKB

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