Bill, N6SS is using an Elecraft K3, and myself a Yaesu FTDX101MP, which
are extremely stable on frequency in test reports. N6SS decodes me ok on
FST4-300. Is there a log I can check for this for my RX ?
Thankyou
Adrian Fewster
On 10/2/21 1:06 am, Bill Somerville wrote:
Hi Adrian,
does your, and your QSO partner's, equipment meet the frequency
stability requirements of FST4-300 mode?
73
Bill
G4WJS.
On 09/02/2021 14:46, Adrian wrote:
Bill tried again tonight with N6SS on FST4-300, and no success here decoding.
I used both 600Hz roofing filter making a very prominent seen signal N6SS, and
tried with the normal 3 KHz rx filter.
Tried 20 and 100 FTol. After several rx seen signal passes, there was no
decode. TX and RX pan freq were both set at 2000Hz
It seems ok on FST-60, I may have to give up on 300, no more ideas on this.
Thankyou
Adrian Fewster
-----Original Message-----
From: Bill Somerville [mailto:g4...@classdesign.com]
Sent: Tuesday, 9 February 2021 1:44 AM
To:wsjt-devel@lists.sourceforge.net
Subject: Re: [wsjt-devel] WSJT-X v2.3.0 Oc42df.
On 08/02/2021 15:29, Adrian wrote:
Working with N6SS trying FST4-300 tonight on 160m we noticed a few
things ;
His wsjtx gui has a freq high and low parameter, whereas mine does
not, but has a F Tol parameter, which he has not.
However both his and mine show version WSJT-X v2.3.0 Oc42df. For final
v2.3.0 release in the help info section ?
Preston was able to decode me, but I never decoded his signal even
though prominent on the waterfall.
Preston was also using ~500 Hz audio frequency whereas I used 2000 Hz.
He as at 1.839 whereas I was at 1.8375
Would the low audio frequency effect signal fidelity for decoding ?
I am trying to see why I could not decode ?
Adrian Fewster
Hi Adrian,
the differences you see are due to you having "Settings->General->Single
decode" checked and N6SS not. In single decode mode the decoder only attempts to decode
signals within the selected Rx offset and frequency tolerance around that, only the first
successful decode is printed. With single decode not checked multiple signals may be decoded
within the specified low and high frequency limits after an initial decode attempt at the
selected Rx offset ±20 Hz.
You have not provided enough information to determine the one way decoding, but
the above should allow you to assess if it was merely a settings issue.
73
Bill
G4WJS.
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