[hfsig] Re: [Flexradio] The final nail in the coffin of Morse ?
Robert McGwier
rwmcgwier at comcast.net
Fri Jul 22 22:28:49 EDT 2005
You know my feelings already. These suggestions will enable real HF
modems for the first time. I would not have dreamed of building a
reasonable HF modem until the League proposals were brought forward. It
would have just been a waste of time. I would have been run out of
amateur radio for even suggesting doing MS188-110A,B, etc. on (say) 20
meters in the phone band. Now I can see
doing some serious work and it actually could be interesting at last.
We could have 19-50 Kbps NVIS modems kicking some real butt in 9 Khz
bandwidth. Since OFDM - fade designed trellis QAM seems like AM to me
anyway. ;-). Imagine having really serious digital voice over NVIS
channels with S9 signals on 40 meters and running 5 watts. Bring it on!
Bob
DuBose Walt Civ AETC CONS/LGCA wrote:
> First, the NPRM was not strictly an ARRL proposal, in fact, it didn't
> appear to me to be the major proposal or proposal that the FCC used to
> draft the NPRM.
>
> Ok Bob, we know your views on CW, which are similar to my feelings,
> but what about the Board's decision to limit HF bandwidth to 3.5 KHz
> with a 9 KHz exemption for AM? Don't we need wider bandwidths for
> high-speed, robust data modes? Isn't the bandwidth limitation going
> to be a greater factor in hingering the growth of amateur radio than
> the Morse Code issue?
>
> Walt/K5YFW
>
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