Here's how:
CW transmission from a keyboard macro (just like almost ALL contest
exchanges use) but pre-encoded with FEC, LPDC, etc and sent in short
bursts (maybe 5 seconds?) with a bandwidth on the order of 200 Hz. Not
many CW transmissions, even in a contest, are faster than that.
Transmissions received and decoded using the same DSP techniques as for
FT8, but converted to audible CW instead of being displayed as text.
There are no straws being grasped here. Just expressions of frustration
that FT8 has mentally corralled all use of these signal enhancement
techniques.
73,
Dave AB7E
On 2/18/2022 12:39 PM, rjairam@gmail.com wrote:
They use FEC and LDPC. None of which are in CW.
Even so the WSJT code is open source.
We are really grasping at straws here.
Ria
N2RJ
On Fri, Feb 18, 2022 at 2:37 PM AB1J via CQ-Contest
<cq-contest@contesting.com> wrote:
Is this true? I thought FT modes used FEC methods which wouldn't
be available on CW. I have limited knowledge, but I can't see how
it would work on normal CW.
73,
Ken, AB1J
-----Original Message-----
From: David Gilbert <ab7echo@gmail.com>
To: cq-contest@contesting.com
Sent: Fri, Feb 18, 2022 5:17 pm
Subject: Re: [CQ-Contest] ARRL to allow self-spotting in contests
The signal processing techniques utilized in FT8 could have been
used to
enhance the signal-to-noise of normal CW in a way that would have
been
virtually transparent to the operator. It's truly a shame that
WSJT-X
has landlocked those techniques within FT8 in the minds of just about
everyone in our hobby, as well as giving those techniques such a bad
image that nobody seems willing to take up the mantle to fix it.
The signal processing technology behind FT8 is awesome, but it is
neither unique nor proprietary. It should have enhanced the hobby
for
all of us, especially for us contesters since almost all of our
transmissions come from keypresses in a logging program anyway.
Instead
it is being held hostage to WSJT-X for no real reason other than
inertia.
73,
Dave AB7E
On 2/18/2022 8:13 AM, James Cain wrote:
> I agree with HA3LN that FT-8 is a terrible blow to what an ARRL
director
> snidely referred to -- on this reflector -- as "our sandbox."
Yes, I play
> only unassisted and you call it what you want.
>
> A neighbor guy dropped by and I had just set up my Superstation
for this
> weekend -- a TS590 on a card table and a 11-foot wire dropped
out the 2nd
> floor window. "I can talk to Europe, South America, maybe even
Japan with
> this" said I. "On Morse code."
>
> cain K1TN
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
|