Date   

locked Re: Proposal for an ongoing FT event #FT8 #FT4

Dick- K9OM
 

Hi Ken,

I love your concept for this new FT4/FT8 "distance scoring contest" based upon a standard 4-letter Grid and would enjoy operating it.  Would there be anyone on this forum with the know how and time to put together a N1MM Logger+ template for this new contest?

Since "FT4 was designed for Contesting", and FT4 works really well, we need many more FT4 contests!

73, Dick- K9OM


locked Re: Icom 703+ and WSJT #Icom

Joe Subich, W4TV
 

I use the 13 pin ACC Connector. Just be sure to remove the mic.
If you would use SSB-D you would not need to remove the mic (Note:
on page 69 of the IC703 Instruction Manual).

73,

... Joe, W4TV


On 2021-06-10 7:35 PM, Don Melcher wrote:
On Wed, Jun 9, 2021 at 10:29 PM, Joe Subich, W4TV wrote:


IC-703 is of an age that does not support PTT via CAT command.
That is incorrect. The 706 is of that age, but the 703 indeed supports CAT PTT. I use the 13 pin ACC Connector. Just be sure to remove the mic.
--
Don
W6CZ/W6ZB
DM07bk


locked Re: Call for information about PC systems being used for WSJT-X #general

Bill Somerville
 

On 09/06/2021 00:37, Bill Somerville wrote:
Hi all WSJT-X users,

we are looking into some performance enhancements that will take advantage of some parallel processing features of modern CPU architectures. In order to gauge how much backwards compatibility for older CPUs we will have to implement it would help to know who is using such older processors. Please don't turn this thread in to a mine is better than yours conversation, all I need to know is who or how many of you are using the older CPU architectures. Note that this applies to MS Windows, Intel Linux, and Intel macOS users, it is about CPUs not operating systems.

The technology we will use is called AVX and that is present on all Intel CPUs branded Core i3/i5/i7/i9 (circa 2010 to present), it is also present on AMD CPUs since the Jaguar or Puma based CPU models (some late Athlon-II CPUs, all Zen based CPUs, including Ryzen) circa 2013 to present.

Notably Intel CPUs branded Celeron, Pentium, or Atom do not support the AVX technology.

So in summary, look up your CPU and if it **does not support AVX** (https://en.wikipedia.org/wiki/Advanced_Vector_Extensions) then let me know.

73
Bill
G4WJS.
Hi all,

thanks for all those who took the time to check their systems and report those without AVX support. That has helped to get a broad picture of the numbers with older CPUs that pre-date this feature. Not unsurprisingly a significant proportion lack AVX, this is almost certainly due to systems being acquired second-hand, repurposed from other uses, or kept for extended periods as they are more than adequate for the average shack PC.  Some have suggested that we should not abandon owners of these older PCs, don't worry as that has never been the intention of this exercise, here is some background that should help to clarify what may happen.

The MAP65 application, as of WSJT-X v2.5.0 RC1 has been updated to decode Q65 signals, this is because we feel certain that Q65 is superior for EME use on all bands and the prior JT65 decoding ability will be superseded by Q65. The MAP65 decoder is able to decode many signals across a wide pass-band, and also implements polarization diversity with suitably equipped stations. Automatic linear drift compensation has also been added to compensate for less well specified stations. This all requires a lot of signal processing effort, but users expect signals to be decoded in the short interval between the end of transmission and the start of the next period (note with EME the path delay means that up to 2 1/2 seconds of that interval is lost compared with terrestrial paths). The first use of hand coded micro-optimizations using AVX instructions on suitable CPUs will be aimed at getting Q65 decodes done faster in MAP65. Because the Q65 decoder is shared by WSJT-X and MAP65, the same optimizations will be there for WSJT-X Q65 users. None of this is particularly relevant to the survey of CPUs done here as I am sure that PC costs are such a small part of the typical EME station investment that users will find a way to upgrade their PCs if necessary.

So why did I ask the question about AVX? Once we start using AVX for some parts of WSJT-X it makes sense to find other opportunities for similar hand coded micro-optimizations elsewhere in out code base, not only that but once implemented we may well choose to increase the decoding depth of other decoders by taking advantage of such performance gains. The net effect would be that those with AVX equipped PCs will see faster and deeper decoding, those with older PCs will see the same extra depth but overall decoding will take longer than before. My aim was to judge what proportion of users might suffer this speed degradation versus those that will see both faster and deeper decoding.

To reassure those that may have misunderstood, there is no intention to exclude users from the latest WSJT-X enhancements just because they have older CPUs. We would implement AVX implementations of critical algorithms alongside their current linear implementations and the choice of which to use would be made at runtime according to the available CPU features. Note exactly this already happens in the FFT library we use called FFTW3, so WSJT-X and MAP65 users have always had AVX specific algorithm implementations for FFT calculations if the CPU they run on supports them. We are investigating coding other critical algorithms in a similar fashion. Notwithstanding that, we also have no intention of dropping support for ARM CPU architectures like the Raspberry Pi, yet we have no intention of similar hand coded micro-optimizations for that platform since the required tools do not exist, so for that platform our linear implementations would still be used, just like on non-AVX Intel or AMD CPUs.

73
Bill
G4WJS.


locked Re: Call for information about PC systems being used for WSJT-X #general

Tony Collett
 

My main PC is a Dell Optiplex 780 W10 64 bit
Intel Core 2 Duo CPU E8400 @ 3.00GHz
Plenty fast enough for current WSJT but does not support AVX

I also have a couple of laptops which occasionally get pushed into use with WSJT -  pretty certain they are of a vintage that will not have AVX 

73
Tony G4NBS


locked Re: Icom 703+ and WSJT #Icom

Don Melcher
 

IC-703 is of an age that does not support PTT via CAT command.

That is incorrect. The 703 indeed supports PTT via a CI-V CAT command. The 706 series does not. 
--
Don
W6CZ/W6ZB
DM07bk


locked Re: Icom 703+ and WSJT #Icom

Don Melcher
 

On Wed, Jun 9, 2021 at 10:29 PM, Joe Subich, W4TV wrote:
IC-703 is of an age that does not support PTT via CAT command.

That is incorrect. The 706 is of that age, but the 703 indeed supports CAT PTT. I use the 13 pin ACC Connector. Just be sure to remove the mic.


 
 
--
Don
W6CZ/W6ZB
DM07bk


locked Re: WSJT-X working on an TS-570D? #txaudio #AudioIssues #signalink

Steve marsh (M0NMA)
 

Bob

We can hear transmit audio on the signalink - it is just that nothing is getting through to the TS-570D. In WSJT-X settings, selecting the TS-570D just gives a communication error message from Hamlib, so we have been using Omnirig instead. The Cat control is working both ways, so it looks like it is just an audio problem, or the Cat control requesting the wrong settings.
--
Steve M0NMA


locked Re: Call for information about PC systems being used for WSJT-X #general

Sanyi HA3PG
 

Bill,

none of my old computers CPUs (Celeron J1900 and Xeon E5630) support AVX. And there are least two other hams locally (HA3MG Joco and HA3PV Joska) using computers of similar age. Oldies but goodies and WSJT-X runs smoothly on these. We can not afford the latest computers for our hobby so please keep backward compatibility if it is feasible.

Thank you, 73...  Sanyi, HA3PG


locked Re: Call for information about PC systems being used for WSJT-X #general

Jeff Otterson
 

Bill,  

My shack computer is a CORE 2 QUAD, and my ham radio travel laptop is a CORE 2 DUO.  AFAIK, there is no AVX support on either.

Both of these machines perform well, I do not wish to replace them.

73

Jeff n1kdo


locked Re: Call for information about PC systems being used for WSJT-X #general

Scott WA9VZD
 

Hi Bill,

My processor is an AMD Phenom II X6 1100T (3.30 GHz).
I suspect that it does not support AVX.

73 and thanks for all of your hard work.
Scott
WA9VZD


locked Re: Np FT8 on 40? #band #FT8

Brian Stucker
 

Definitely an equipment situation. There has been lots of activity on 40M. Even during the last geomagnetic storm we had a month ago or so I could copy a few stations on 40M (although admittedly is was just a few).

If you can be heard on PSK then you are TXing on USB. I would check that you don’t have any attenuators set on your rig that may be killing you on RX for 40.

If you can hear on 20, and be heard on 40, and assuming you’re using the same antenna for both (and that the antenna is not terribly compromised on 40) I would look at your rig as suspect. Maybe you set a filter for CW and forgot or something along those lines. You can pick up some FT-8 on 40M most nights with a bit of wire laying on the ground connected to the center pin of your coax. 

73,
Brian - KB2S


On Thu, Jun 10, 2021 at 12:13 PM Anthony - N1IG via groups.io <n1ig=protonmail.com@groups.io> wrote:
just checked PSKreporter, and it said that you were seen 2 minutes ago, but did not show a location.



locked Merge SmartSDR IOS and WSJTX Log Files #logging

n2_ss
 

SmartSDR for IOS has built in FT8 and generates an ADIF log file. The format of this file is different from the format of the ADIF log file generated by WSJTX. Is there a way to merge the IOS log.adi file into the WSJTX log.adi without generating a scrambled mess?
Thanks, Tony N2SS


locked Re: Version 2.4.0 ate my adi file #IssueReport #logging

Paul Turner
 

Hi Julian,

 

I think I can persuade my homebrew logging software to convert a wsjtx.log file into an adi file. I use the wsjtx.log file to import all my FT8 contacts into an SQLite database. From there, I can export the entire log as an ADIF file. A little tinkering with file locations and it should work. If you email me (paul@...) your wsjtx.log file I’ll have a go.

 

73, Paul G4IJE.

 

 

From: main@WSJTX.groups.io <main@WSJTX.groups.io> On Behalf Of Julian Topolski
Sent: 10 June 2021 18:26
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] Version 2.4.0 ate my adi file #bug #logging

 

Don't know if I did anything to cause the deletion but is there an app to convert the wsjtx.log file into an adi file? Manually would be really tedious. BTW I also log on paper just in case something like this happens. I then scan the paper log into the PC as a jpg file. Thanks for the reply.

73 Julian KR5J


Virus-free. www.avast.com


locked Re: Version 2.4.0 ate my adi file #IssueReport #logging

Julian Topolski
 

Don't know if I did anything to cause the deletion but is there an app to convert the wsjtx.log file into an adi file? Manually would be really tedious. BTW I also log on paper just in case something like this happens. I then scan the paper log into the PC as a jpg file. Thanks for the reply.

73 Julian KR5J


locked Re: Call for information about PC systems being used for WSJT-X #general

William Smith
 

What Bill said, type your CPU identifier into Google and click on the result from ark.intel.com

William Smith
ComputerSmiths Consulting, Inc. 
w_smith@...

On Jun 10, 2021, at 11:56 AM, Bill Somerville <g4wjs@...> wrote:


Dave,

it would help if you and others did the small extra step of actually checking if your CPU supports AVX rather than leaving it to me to check. Your CPU does support AVX:


73
Bill
G4WJS.

On 10/06/2021 13:31, Dave via groups.io wrote:
Bill,

Intel  i7-4790 running at 3.6 GHz

Dave KC3AM

On 06/08/2021 19:37, Bill Somerville wrote:
Hi all WSJT-X users,

we are looking into some performance enhancements that will take advantage of some parallel processing features of modern CPU architectures. In order to gauge how much backwards compatibility for older CPUs we will have to implement it would help to know who is using such older processors. Please don't turn this thread in to a mine is better than yours conversation, all I need to know is who or how many of you are using the older CPU architectures. Note that this applies to MS Windows, Intel Linux, and Intel macOS users, it is about CPUs not operating systems.

The technology we will use is called AVX and that is present on all Intel CPUs branded Core i3/i5/i7/i9 (circa 2010 to present), it is also present on AMD CPUs since the Jaguar or Puma based CPU models (some late Athlon-II CPUs, all Zen based CPUs, including Ryzen) circa 2013 to present.

Notably Intel CPUs branded Celeron, Pentium, or Atom do not support the AVX technology.

So in summary, look up your CPU and if it **does not support AVX** (https://en.wikipedia.org/wiki/Advanced_Vector_Extensions) then let me know.

73
Bill
G4WJS.



--
73, Dave KC3AM Hams should be seen as well as heard






locked Re: Np FT8 on 40? #band #FT8

Panos
 

After calling some cq does your callsign show on pskreporter? 73


locked Re: Np FT8 on 40? #band #FT8

Darl DEEDS
 

There has been activity so my first choice would be to be on 7074 and make sure its USB. If your on LSB you may not here anything.

 

Darl  NA8W

 

From: Jim Robinson
Sent: Thursday, June 10, 2021 11:52
To: main@WSJTX.groups.io
Subject: [WSJTX] Np FT8 on 40? #band #ft8

 

Strangely, for at least the last 3 weeks, I've been unable to find FT8 activity (or any activity for that matter) on 7.071 or 7.074.  I have tuned there during both day and nighttime hours using two different transceivers and am basically greeted with the sound of silence.  The problem isn't with the transceivers because on both, 40 is otherwise alive and well.  What's going on?

Jim, W5ZYX

 


locked Re: Np FT8 on 40? #band #FT8

Brian Kassel K7RE
 

Lots of FT8 on 40M in the evening and night time hours.
Do you have the correct mode set up in your rig?
Correct sideband?
I assume that you listened as well, however with the wrong
mode, the frequency will be off enough to not allow you to hear
the FT8 traffic.


locked Re: Np FT8 on 40? #band #FT8

William Smith
 

Try calling CQ?  Is your antenna OK?

William Smith
ComputerSmiths Consulting, Inc. 
w_smith@...

On Jun 10, 2021, at 11:53 AM, Jim Robinson <w5zyx@...> wrote:



Strangely, for at least the last 3 weeks, I've been unable to find FT8 activity (or any activity for that matter) on 7.071 or 7.074.  I have tuned there during both day and nighttime hours using two different transceivers and am basically greeted with the sound of silence.  The problem isn't with the transceivers because on both, 40 is otherwise alive and well.  What's going on?

Jim, W5ZYX





locked Re: Np FT8 on 40? #band #FT8

Bill Somerville
 

On 10/06/2021 16:47, Jim Robinson wrote:
Strangely, for at least the last 3 weeks, I've been unable to find FT8 activity (or any activity for that matter) on 7.071 or 7.074.  I have tuned there during both day and nighttime hours using two different transceivers and am basically greeted with the sound of silence.  The problem isn't with the transceivers because on both, 40 is otherwise alive and well.  What's going on?

Jim, W5ZYX
Hi Jim,

is you rig on USB?

73
Bill
G4WJS.

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