Paul,The term for the performance parameter you're asking about is "co-channel
rejection" and, as Steve points out, it's very messy to analyze analytically,
as it's a very nonlinear function of many variables. Even validating
simulation results via experiment can be tricky.Ed N4II.
Ori
whoosh - sharp intake of breath
Rich you are Sooo... picky,
73 = best regards
73s = more than one best regards
73's = 73, his best regards.
As I understand, 's is possesive, so "Richard's email" is shorthand for
"Richard, his email". I'd love to be corrected.
Nice to see the new world is equally
Steve,
Thank you very much for taking the time to answer my question in detail. I
will dig out the papers you reference and take a read.
Re the Gray map, that all makes perfect sense now with the hindsight of your
explanation!
There are clearly a lot of things to learn in the source code of W
TOK, thanks Steve. If I get inspired maybe I'll fire up ft8sim and ft4sim
and run some experiments.
73, Paul K6PO
On Mon, Jul 29, 2019 at 9:35 AM Steven Franke via wsjt-devel <
wsjt-devel@lists.sourceforge.net> wrote:
> Paul,
>
> I don’t know the answer to your question(s).
>
> In addition to fr
Hi All:
Just a reflection about FT4 and FT8, sensitivity and cycle times. From my
experience, FT4, is less sensitive than FT8. Please note my QTH is in
Caribbean far distant than stations in the mainland. My opinion is that IF
FT4 could be improved (maybe a v2 of the mode) regarding sensitivity
On 7/29/2019 8:37 AM, Rich Zwirko - K1HTV wrote:
When all 6M DXers in the region are all using the same Tx sequence, we
all have a better chance to decode weak DX signals.
YES! I have sent educational emails to locals on this topic. Another
observation is that we need to listen a lot more, whi
Claude!
QSO is OK, if both stations have received R confirmation.
73 is meaning that You are super polite.
Keijo OG55W
-Alkuperäinen viesti-
From: Claude Frantz
Sent: Monday, July 29, 2019 6:54 PM
To: wsjt-devel@lists.sourceforge.net
Subject: Re: [wsjt-devel] WWDIGI Tesdting
On 7/29/
Hello Claude and All,
Claude wrote: A similar situation occurs outside of the contest mode, if the
one station sends RR73 and the partner stations sends 73, which the first
station was not able to decode. The QSO cannot be considered as ended.
This point has been mentioned many times previously.
Paul,
I don’t know the answer to your question(s).
In addition to frequency separation and signal strength difference, one would
have to consider overall signal strength (not just difference), the DT
difference between the two signals, and the delay and Doppler spread on each of
the two channe
On 7/29/19 3:39 PM, Joe wrote:
Hi Joe & all,
here is what happened.
N9UDO calling CQ
W9ET answers CQ with 'N9UDO W9ET EN43'
N9UDO replies with 'W9ET N9UDO R EN53'
W9ET responds by sending 73 round
N9UDO does not hear the 73 and keeps re-sending 'W9ET N9UDO R EN53'
W9ET is not aware that t
Hi Mike,
Good on the note, but I'd correct the last line "73's".
73 means 'Best Regards'.
73's translates to "Best Regards's" (Regardses) 8-).
I know, picky, picky.
Regarding emailing 'educational' notes, I regularly do so to loud locals
who call CQ on 6 Meter FT8 during the 1st & 3rd 15 secon
Hi James,
> The source code in question is lines 168 through 215 of lib/ft8/ft8b.f90 (Git
> tag wsjtx-x 2.1). This source code appears to implement a “soft demapper”
> that takes groups of 1, 2 or 3 successive symbol observations and turns these
> into groups of 3, 6 or 9 log likelihood ratios
Hi Bill,
Another report from 10.12.6 along with 10.11.6:
> At line 2 of file /Users/bill/wsjtx-prefix/src/lib/hspec.f90
> Fortran runtime error: Actual string length is shorter than the
> declared one for dummy argument 'mycall' (-4294967284/12)
This refers to your comment to Steve:
—
it looks
I was testing my set up with a few locals for the Up-Coming WWDIGI
Contest, and we discovered something, that is NOT a HUGE issue, but
looking for a workaround.
here is what happened.
N9UDO calling CQ
W9ET answers CQ with 'N9UDO W9ET EN43'
N9UDO replies with 'W9ET N9UDO R EN53'
W9ET respond
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