[Elecraft] iambic modes

Steve shlawrence at earthlink.net
Wed Jan 25 23:37:13 EST 2006


For those who struggle with iambic keying, I thought this analysis written
by Marshall Emm (N1FN) particularly enlightening:

> -----Original Message-----
> Subject: [QRP-L] Twin or single paddle?
>
>... 
> Recently it dawned on me just how little I'm gaining from the  iambic 
>keying as I read this great article:
> http://www.morsex.com/pubs/iambicmyth.pdf
> 

73,
Steve
aa8af


> -----Original Message-----
> Subject: RE: [Elecraft] iambic modes
> 
> Here's an informative link explaining Mode A and Mode B for 
> anyone still scratching their head in wonderment...
> 
> http://home.att.net/%7Ejacksonharbor/modeab.pdf
> 
> Or 
> 
> http://tinyurl.com/bqr2p
> 
> It's been claimed in various histories that Mode B was 
> actually a mistake made in an early keyer, but it was a 
> functional mistake that ops learned to use. Those operators 
> objected to the fact that the last code element wasn't 
> automatically sent when expected, so manufacturers like the 
> famous Curtis who developed the first keyer 
> application-specific integrated circuit (ASIC) keyer "chip", 
> included both "modes" in their designs. 



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