[CQ-Contest] Rise time

Mike Smith VE9AA ve9aa at nbnet.nb.ca
Sat Jun 6 15:44:19 EDT 2020

All this talk about rise time, I didn't even recall that my (Icom) rigs had
an adjustable one, or what it was for (until I read this thread)


In my manual it gives me 4 options. 2, 4, 6 & 8 millseconds. (the default is
4ms according to my IC-7410 manual, though Icom warns that ( I quote) "If
the rise time of a CW waveform is too short, key clicks on nearby
frequencies can be generated"


One rig was set to 6ms and one to 8ms.(why exactly, I have no idea-one rig
is used and the other, while new,  has been away once for repair of
something unrelated to keying)

What would be the consequences of me setting them both to, say, 8 ms? 


Will amps key differently?  Will my CW sound soft? Will leading dits be


Tnx for any info!


Keep it clean, folks


Mike VE9AA


Mike, Coreen & Corey

Keswick Ridge, NB


More information about the CQ-Contest mailing list