In article , "Carl R. Stevenson"
writes:

"N2EY" wrote in message
...
In article , "Carl R. Stevenson"
writes:

"Robert Casey" wrote in message
...
Dick Carroll; wrote:

It isn't on the FCC's website yet but you can read it here....




http://www.eham.net/articles/6371




If CW does enjoy a 13 dB advantage over SSB, avid DX hounds will
choose to learn it and use it on their own. No need for a license
test.
CW makes for small bandwidth combined with simple equipment.
NASA doesn't use CW with its deep space probes, but they have
fancy equipment on both ends. I mention this in that NASA does the
ultimate in weak signal work, something CW is usually good for on
ham bands with simple equipment and trained operators. But there's
no CW op on the space probe.

And plain old binary FSK has a bit more than a 9 dB weak signal advantage
over OOK Morse ... if you slow it down to equivalent data rates ...

If you have an optimized receiver and suitable conditions, maybe - depends
on
what you determine to be "equivalent data rates".

Bits is bits ... same equivlent data rate is pretty clear.

So we'll say 30 wpm plain text.

But hams don't do slow-HF-BFSK. 60 wpm FSK Baudot RTTY is about the most
basic
data mode still in use by hams.

No, because it works well at higher rates and higher rates are desirable.

Sometimes higher rates are desirable.

BUT, if they *did* slow WAY down to Morse rates, they'd have at
least a 9 dB weak signal advantage over OOK Morse..

After your mistakes in the "ARS License Numbers" thread, Carl, I tend to be a
bit skeptical about your numbers. 54%, anyone?

More modern digital techniques are even better. Some produce perfect
copy at s/n ratios where even the best CW operator couldn't even detect
the PRESENCE of a CW signal, let alone begin to copy it.

That all depends on the equipment in use. Using a receiver optimized for
one
mode in an attempt to receive another may or may not be a good idea.

What mode do you use most on HF, Carl?

I'm playing with the soundcard modes right now ... PSKxx in particular,
helping some friends check out some pretty slick freeware they're
developing.

That's nice....guess SSB has it limitations, huh?

73 de Jim, N2EY