Hi all,
In case you had wondered about the following post from K1HTV:
On 9/14/2021 1:55 PM, Rich - K1HTV via wsjt-devel wrote:
After this past weekend's ARRL VHF contest, one of the top SOHP scorers,
Mike, W3IP, posted a note to the PVRC reflector along with the breakdown
of his score. In his comments he compared the FT8 sensitivity of WSJT-X
vs JTDX. Mike is a technically sharp guy and I trust what he has
reported. Here is what W3IP wrote:
*"When operating on FT8, I ran WSJT-X and JTDX in parallel. The JTDX
decode capability on weak signals is significantly better - but JTDX
doesn't recognize contest mode. I had several contacts that decoded only
on JTDX so I had to manually advance the transmit side exchange on
WSJT-X each time. I had only one occasion when I decoded a wanted signal
in WSJT-X only. What a pain!"*
I wonder what might explain the better performance of JTDX over WSJT-X
on weak signals and if something can be done so WSJT-X can match the
weak signal performance of JTDX.
I used WSJT-X v2.5.0-rc5 in the VHF contest on 6M & 2M and it performed
well for me on FT8. I haven't yet compared WSJT-X at my QTH with JTDX.
It turns out that Mike, W3IP, was using WSJT-X for FT8 with the
"Decode | Fast" setting.
With nearly any modern computer one should use "Decode | Deep" for
maximum FT8 sensitivity.
-- 73, Joe, K1JT
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