Hi Bill success on 160m FST4-300 with N6SS tonight ;
1345 -24 0.4 2000 ` VK4TUX N6SS DM34 1350 Tx 2000 ` N6SS VK4TUX -24 1355 -24 0.3 2000 ` VK4TUX N6SS R-16 1400 Tx 2000 ` N6SS VK4TUX RR73 1405 -23 0.2 2000 ` VK4TUX N6SS 73 I did have my FTDX101MP 600 hz roofing filter on, it does seem to help improve The RX sigs here. Ftol = 20 and other wsjtx settings the same as failed attempts before, So perhaps just a difference in propagation or N6SS K3 signal quality… Thankyou Adrian Fewster vk4tux From: Bill Somerville [mailto:g4...@classdesign.com] Sent: Wednesday, 10 February 2021 1:06 AM To: wsjt-devel@lists.sourceforge.net Subject: Re: [wsjt-devel] WSJT-X v2.3.0 Oc42df. 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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