[CW] CW speed

Donald Chester k4kyv at hotmail.com
Sun Mar 13 14:24:27 EST 2005


>When FCC monitoring budget was higher, most of us would get these "Pink QSL
>cards"

When I started out as a Novice in 1959, it didn't take me long to go through 
the  ritual almost every novice went through, the Harmonic Notification.

These did not require response, but were an advisory notice that the 
transmitter was putting out harmonics, with suggestions how to clean it up.  
Evidently audible harmonics were too numerous for the FCC to bother with 
requiring response for each notification.  I had several friends in the 
local area with novice tickets at the same time I had mine, and every one of 
them eventually managed to receive one too.

I was using link coupling on the transmitter into 72-ohm twinlead to the 80m 
dipole.  I fixed the problem with a brute-force harmonic filter described in 
QST.

Later, I switched to open wire tuned feeders with a link coupled antenna 
tuner to a single dipole for all bands, which is what I  still use, except 
for my 160m. vertical.  Have never received a harmonic notification since.




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