[Fists] why DXpeditions use cw?

[Dave Shrader]

There is another technical preference for CW.

When working a pile you can distinguish different calls by as little as 
50 to 100 Hz in the pile. Each has a separate tone/sound. So, you can 
work up a pile without a lot of RX tuning.

Listen to close spaced stations on CW. You can certainly distinguish as 
little as 100 Hz.   Try that on SSB!

I find it much much easier to work DX, Rare DX, on CW than on SSB.

BTW, a 500 Hz CW bandwidth provides about -6 dB of HF background Noise 
reduction compared to a 3 kHz SSB signal. That translates to + 6dB in 
the signal to noise ratio.

Deacon Dave, W1MCE
+ + +

nz7c@cox.net wrote:

>   I'm curious as to folks' thoughts..in a reply to my earlier email it was noted that many DX ops USE primarily cw - thus most of the responses are cw.
>   Being new to DX and never having thought about it - I was surprised. Is it because most of the hi-profile operators "grew up" with cw or are there some logistical reasons that make the mode the most practical? I'm not trying to express any opinion - just quite curious - thanks for any input folks.
> 73/Tim NZ7C