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Re: Fldigi Lockup

 

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Hi Steve,

For HF, using my IC-7300, I use Rigcat. For FM, using my Kenwood TM-V71a, I'm using a Digi Rig with hardware PTT. For a while I was thinking something
with rig control or USB Audio Codec sound interface but the other day I was using a Web SDR and using Pulse Audio monitor to route the audio to Fldigi
and Fldigi froze on me.

It is frustrating because there is no pattern so I don't know where to start troubleshooting it.

73, Ron NY3J


On 12/13/2024 12:29 PM, Steve K4RVA via groups.io wrote:

Hi Ron,
?
What are you using for PTT/CAT control?
?
I have also been having problems recently running Flrig + Fldigi (and also JS8Call) on Linux Mint 22. Sorry I don't have any answers for you, just wanted to add a "me too".
?
- Linux Mint 22 (kernel 6.8.0-50-generic)
- Flrig 2.0.05.85 and Fldigi 4.2.04.16 compiled per the sourceforge wiki linked from w1hkj.com
- JS8Call v2.2.1-devel installed via apt from the Linux Mint repository
- FTDI USB-to-serial interface, Sabrent USB-audio interface
?
I haven't quite figured out the pattern yet, but it seems that after about 30 to 60 minutes of not transmitting that Flrig will not respond then next time I try to transmit. This has happened when using Fldigi and JS8Call. I don't remember Fldigi locking up, I will have to do some more observing to see.
?
I wonder if anyone can point us in the direction of a logfile or something to look at when this happens?
?
Cheers,
Steve K4RVA
Re: Linux Recommendation - Work is a RHEL/Windows Shop

 

I forgot to mention that Tumbleweed also has a Pacman 3rd party repo for the things that Pacman does ...
?
Rick Kunath, K9AO
Re: Fldigi Lockup

 

Hi Ron,
?
What are you using for PTT/CAT control?
?
I have also been having problems recently running Flrig + Fldigi (and also JS8Call) on Linux Mint 22. Sorry I don't have any answers for you, just wanted to add a "me too".
?
- Linux Mint 22 (kernel 6.8.0-50-generic)
- Flrig 2.0.05.85 and Fldigi 4.2.04.16 compiled per the sourceforge wiki linked from w1hkj.com
- JS8Call v2.2.1-devel installed via apt from the Linux Mint repository
- FTDI USB-to-serial interface, Sabrent USB-audio interface
?
I haven't quite figured out the pattern yet, but it seems that after about 30 to 60 minutes of not transmitting that Flrig will not respond then next time I try to transmit. This has happened when using Fldigi and JS8Call. I don't remember Fldigi locking up, I will have to do some more observing to see.
?
I wonder if anyone can point us in the direction of a logfile or something to look at when this happens?
?
Cheers,
Steve K4RVA
Re: Linux Recommendation - Work is a RHEL/Windows Shop

 

Is that a 43xx Broadcom chipset Joel? Opensuse Tumbleweed has a kernel module for that chipset.

I have never had any issues with printers or the printing subsystem.

You might want to look at Tumbleweed. It's a rolling release, stable but rolling. It rolls fast enough and updates or bugfixes get pushed quickly. It's got tons of Official Build Service 3rd party repos for radio and many other things. And I run a BTRFS file system here with /home on a separate XFS partition. That allows for easy snapshot rollback, hardly ever needed but there. And it's got a great user community, Discord, forums, Bugzilla, etc. I've been using Tumbleweed for years and I can't say enough good things about it. It's one of the hidden gems of the Linuxverse.

I run Plasma 6 (KDE) on the Wayland compositor here and it's been running great. Of course you can use any of the other DE too. It's rpm based and Fedora like so you'd likely feel at home.

Rick Kunath, K9AO
Re: Linux Recommendation - Work is a RHEL/Windows Shop

 

Since I posted this, I have installed several distros. In no particular order:

1. Mint 22 with Cinnamon
2. Mint 22 with KDE
3. Fedora with Gnome
4. Fedora with KDE
5. Fedora Everything with KDE (okay, technically, this is the same as #4 but see below).
6. Arch with KDE
?
These have been installed on an early 2014 MacBook Air except for #1. It's installed on an early 2015 MacBook Air and is my Linux baseline (my main computer is still running macOS 15.1.1).
?
Fedora Everything with KDE is currently running on my 2014 MBA.
?
As I think most on this group would say and, in fact, what I have found to be true except for a niche of users, use what you will enjoy. Here's what I have found:
?
All have their little quirks... For example, on both Fedora and Arch, I had to find and install the Broadcom wireless drivers for the built-in wireless card on my MBA. Having a USB wireless NIC is a necessity if installing one of these distros on a MBA. After having done this a few times, this is a trivial task. For Mint, the driver is included with the ISO but you still have to enable it. It isn't enabled by default.

As for DEs, I like the look of KDE but not the bloat; hence, Fedora Everything - you pick what you want. However, not knowing what everything is, I still wound up with stuff I didn't want. I realize I can remove it. Installing KDE on Arch gave me a minimalist KDE install which I liked.

I'll say this, if you like running a dark or "twilight" DE, Linux DEs get this way better than either macOS or Windows. I don't have enough choice for contrast with either macOS or Windows but, just wow! I can tweak my Linux DE just the way I like it.

I like the running release philosophy of Arch. Install that using btrfs (if I my minimal understanding of btrfs is accurate) and I think you have a pretty good system if you can get past the initial install / configuration.

I did run into a couple of issues in Arch that I couldn't easily resolve - printing to my network printer and I installed JS8Call before any FT-mode software. I am going to revisit both now that I've realized I have a second SSD I can use for Arch.

I know better than installing JS8Call before WSJTX on my Mac so I should have known this about Linux - that's my fault. When I tried to fix it by removing JS8Call, I had several debug files that stopped the WSJTX install. When I tried to remove them or rename them, they were rw locked and I wanted to test something else anyway.

While I'm more familiar with apt, I like pacman and dnf (in that order) much better. I just learned to search pacman (and yay for AUR) when playing with Arch. This carried over to dnf when I started playing with Fedora. I am sure there are similar switches with apt but I wasn't forced to learn them.

One thing I have *not* played with is a tiling manager. I've only ever played with floating Windows GUIs but I usually wind up "tiling" them anyway so I really want to try one. It seems as though there are a lot of videos about Hyprland but I know there are others.

I *really* like the ability to "roll-my-own" when it comes to Linux. While I much prefer macOS over Windows, that ability really isn't easy in either of those OSs.

Regardless, this has been a fun journey and I was finally able to try Arch (I've tried in the past and failed). If you've ever wanted to try Arch, find "Bread on Penguins" on YouTube. She has a video that's almost an hour long that goes through the installation of Arch. She has a follow-up video on installing a DE.

Joel, W4JBB
Fldigi Lockup

 

Dave and other Linux users,

I am still having issues with my Linux Fldigi setup. I figured I would take another crack at trying to resolve this.

I am running Linux Mint 22 Cinnamon and Fldigi version 4.2.06.15 and I'm running into a problem.

After a bit of operation Fldigi will lock up. When I check top it tells me Fldigi is using more than 100% CPU utilization. I have to kill and restart Fldigi.

I have 7.7 gig of memory and 1 Terra Byte of storage.

I do use the WIKI how to section on building. It looks like it builds okay but I do see some messages about Pipewire. I guess the newer Linux loads use Pipewire now instead of Pulseaudio. I can't be sure but my problems may have started since I updated Linux Mint to 22 using Pipewire.

Do you think I'm having issues building the program myself. I don't see a distribution I can use that's already built

73, Ron NY3J
CTY-3439 Country Files - 13 December 2024

 

The Country (CTY) Files were updated on 13 December 2024:



For installation instructions, start at:



Hover your mouse over the word Contest in the menu, then select the
software you are using.

To install the file, follow the link to your software at the top of the page.

If you are interested in a bigger CTY.DAT for everyday logging, you can get
it here:



Note that the release notes (and Version Entity) for this larger file are
different than what is shown below. There is a separate link to them.

As a reminder, there is an RSS feed of the latest country file announcements:



Here are the release notes:

13 December 2024 (CTY-3439)
VER20241213, Version entity is Lebanon, OD

Added/changed Entities/Prefixes/Callsigns:

* 3V8CB/YOTA is Tunisia, 3V
* A61Q/ND is United Arab Emirates, A6
* IZ1KHY/IA0 is Antarctica, CE9
* EA2EZ/P and EA9ADD/P are both Spain, EA
* TX24HAID is New Caledonia, FK
* TX5NH is French Polynesia, FO
* TX100REF and TX7WW are both Marquesas Islands, FO/m
* IQ0SS/P and IR0WWA are both Sardinia, IS
* KI4JFX is United States, K in CQ zone 4, ITU zone 7
* W0RXC and WA2VAM are both United States, K in CQ zone 4, ITU zone 8
* K9OM is United States, K in CQ zone 5, ITU zone 8
* N3QD is Mariana Islands, KH0
* AE7N is Hawaii, KH6
* KG5FTR and N0XS are both Alaska, KL
* N3UCQ is Puerto Rico, KP4
* LU3DXG/D and LU9XBA/L are both Argentina, LU
* LU1WL/W is Argentina, LU in ITU zone 16
* R1941MB, R1941OM, R2025NY and UE25NY are all European Russia, UA
* R0U, R0V, R9PS/0, RA0U, RA0V, RC0U, RC0V, RD0U, RD0V, RE0U, RE0V,
RF0U, RF0V, RG0U, RG0V, RJ0U, RJ0V, RK0U, RK0V, RL0U, RL0V, RM0U, RM0V,
RN0U, RN0V, RO0U, RO0V, RQ0U, RQ0V, RT0U, RT0V, RU0U, RU0V, RV0U, RV0V,
RW0U, RW0V, RX0U, RX0V, RY0U, RY0V, RZ0U, RZ0V, U0U, U0V, UA0U, UA0V, UB0U,
UB0V, UC0U, UC0V, UD0U, UD0V, UE0U, UE0V, UF0U, UF0V, UG0U, UG0V, UH0U,
UH0V, UI0U and UI0V are all in ITU zone 33, not ITU zone 32
* RK4PA/9 is Asiatic Russia, UA9 in ITU zone 20
* RX9WT/P is Asiatic Russia, UA9 in CQ zone 16
* UA0KBG/9 is Asiatic Russia, UA9 in CQ zone 18, ITU zone 32

Removed Entities/Prefixes/Callsigns:

* 3D22 and 3D2V in Rotuma Island, 3D2/r
* 3V8CB/J in Tunisia, 3V
* 9M4CRP in East Malaysia, 9M6
* BA4DL/0 in China, BY
* EC5AHA and EC5AHA/8 in Canary Islands, EA8
* TO2X in Guadeloupe, FG
* GB5BRC in Northern Ireland, GI
* GB0GDS, GB2ZL and GB6WL in Scotland, GM
* GB2GFS and GB5CJ in Wales, GW
* IQ0PM in Sardinia, IS
* K5SPP and KH2D in United States, K
* KN6QVA, N6LTM, N6LZL and W6GKL in Hawaii, KH6
* KA7TOM and KG7ORS in Alaska, KL
* K8RF in US Virgin Islands, KP2
* OZ5LKO/JOTA in Denmark, OZ
* PA1ASP/J, PA1AW/J, PA3EFR/J, PI4BG/J and PI9TP/J in Netherlands, PA
* SV2JAO/J and SZ2TSL/J in Greece, SV
* SV2ASP/A in Mount Athos, SV/a
* R50AWL in European Russia, UA
* R0UT, R0WA/P, R100IR, RD9U/0, RN0F, RW0UM, RX0TX/P and UA0UV in Asiatic Russia, UA9
* VE2DXY in Canada, VE
* HF0POL in South Shetland Islands, VP8/h

Though I am subscribed to this reflector so that I can make these
announcements, I do not see most messages posted to it. If you have
any comments or corrections to the country file, please contact me
directly.

73 - Jim AD1C

--
Jim Reisert AD1C, <jjreisert at alum.mit.edu>,

Re: fldigi 4.2.06.15 developmen t version availabe for testing

 

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Notarized version for MacOS 15 is here:


On Dec 12, 2024, at 12:13?PM, Dave, W1HKJ via groups.io <w1hkj@...> wrote:

Posted at

Most recent three changes to the program:

commit ad817413f9d517a88b9156d48cc28f3a0b53c92c
Author: dave-w1hkj <w1hkj@...>
Date:?? Mon Dec 9 15:05:42 2024 -0600

??? MFSK afc
?? ?
????? * Increase AFC low pass filter range to 500.

commit 68e700918a9517b6825c94365037ae07fbb57fd3
Author: dave-w1hkj <w1hkj@...>
Date:?? Thu Dec 12 09:23:27 2024 -0600

??? THOR-25
?? ?
????? * add new THOR modem with following characteristics
??????? . symlen = 320
??????? . samplerate = 8000
??????? . flushlength = 20
??????? . bandwidth = 460
??????? . IEEE coefficients for viterbi encode/decode algorithms
????????? THOR_K15? 15
????????? K15_POLY1 044735
????????? K15_POLY2 063057
??????? . objective to provide highest baud within 500 Hertz bandwidth for
????????? European amateurs
????? * assigned secondary RsID code 691 to THOR-25
????? * increased flush length for all THOR baud rates
????? * added configurable start and end of signal shaping to these modem types:
??????? . dominoEX
??????? . psk
??????? . mfsk
??????? . rtty
??????? . thor
??????? . selectable on configuration tab Modem/General

<e5m5bZQoLf86X2J7.png>

commit 8aa6a3ea07596d0c61e57462c8ffe1bae939339b
Author: dave-w1hkj <w1hkj@...>
Date:?? Wed Nov 27 15:49:26 2024 -0600

??? MFSK afc
?? ?
????? * add configuration item allowing user to adjust the decay
??????? averaging of the AFC tracking.

73, David
W1HKJ


fldigi 4.2.06.15 developmen t version availabe for testing

 

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Posted at

Most recent three changes to the program:

commit ad817413f9d517a88b9156d48cc28f3a0b53c92c
Author: dave-w1hkj <w1hkj@...>
Date:?? Mon Dec 9 15:05:42 2024 -0600

??? MFSK afc
?? ?
????? * Increase AFC low pass filter range to 500.

commit 68e700918a9517b6825c94365037ae07fbb57fd3
Author: dave-w1hkj <w1hkj@...>
Date:?? Thu Dec 12 09:23:27 2024 -0600

??? THOR-25
?? ?
????? * add new THOR modem with following characteristics
??????? . symlen = 320
??????? . samplerate = 8000
??????? . flushlength = 20
??????? . bandwidth = 460
??????? . IEEE coefficients for viterbi encode/decode algorithms
????????? THOR_K15? 15
????????? K15_POLY1 044735
????????? K15_POLY2 063057
??????? . objective to provide highest baud within 500 Hertz bandwidth for
????????? European amateurs
????? * assigned secondary RsID code 691 to THOR-25
????? * increased flush length for all THOR baud rates
????? * added configurable start and end of signal shaping to these modem types:
??????? . dominoEX
??????? . psk
??????? . mfsk
??????? . rtty
??????? . thor
??????? . selectable on configuration tab Modem/General

commit 8aa6a3ea07596d0c61e57462c8ffe1bae939339b
Author: dave-w1hkj <w1hkj@...>
Date:?? Wed Nov 27 15:49:26 2024 -0600

??? MFSK afc
?? ?
????? * add configuration item allowing user to adjust the decay
??????? averaging of the AFC tracking.

73, David
W1HKJ

Re: FLrig Remotely Accessed Scanning Script

 

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Hi Charles

I have used flrig-shell and/or fldigi-shell for this. Am pretty sure they are on Dave's site.

From (say) bash, something like

flrig-shell -c "rig.set_vfoA 14074000"

or

fldigi-shell -c "rig.set_frequency 14074000"

There are a heap of other commands that might find useful. (like modem choice and audio centre in fldigi-shell) Just launch without arguments and type help for a list. If you want to also have a GUI/manual fldigi macro set for your QSY choices, it is also possible to externally launch same with (say) fldigi-shell -c "main.run_macro 46".

Cheers Bob VK2YQA


On 12/12/24 02:42, Charles Hargrove wrote:

I am trying to help out someone who is looking to use the JNOS bbs with
FLrig/FLdigi and have the HF radio scan groups of frequencies waiting
for connections. The group of frequencies will change based on time of
day for propagation changes. For example, 80 meters during evening or
overnight and 40 meters during daylight. The FLdigi would be the modem
and the FLrig would do all of the radio control functions. We can set up
scripting with JNOS and have it communicate with FLrig/FLdigi via TCP/IP.
Is this doable and where can I find the commands needed to make it happen
to build out the script? Thanks.

Re: #wefax parsing filenames #wefax

 

Thanks, Dave.? The source code is nicely written.
?
Eric

Bug or "Feature"? Re: fldigi 4.2.06.14 development test version posted at

 

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Hi.

Built without errors on LMDE 6 / Cinnamon on Intel based PC.? Runs well, but...

Bug or "feature"?? The AFC button is permanently "greyed out" in all modes, but AFC is actually active (ON) all the time!

This was not the case with 4.2.06 (release version) or the 4.2.06.07 alpha, though I see is also an issue with 4.2.06.09. So what changed between alphas '.07 and '.09 ?

It is especially problematic when Fldigi is left monitoring unattended in MFSK32 for such things as the weekly SW Radiogram broadcast, as it wanders off frequency when noise, or other non digital audio, voice or music, opens the digital squelch.? (That does have a hair trigger it seems...)

OK, so if full bw RxID is enabled, it comes back when that is seen, but it can also wander off frequency during active reception of MFSK images!? Resulting in lost or mangled text or images etc that follow.? (The image being received when it wanders, is NOT affected!)

As above, with 4.2.06 (Release) or 4.2.06.07 Alpha, this was not an issue, the AFC button was not "greyed out" and one could turn freely select the AFC ON/OFF setting as desired.

Seasons Greetings etc.

73 Dave G0WBX.


FLrig Remotely Accessed Scanning Script

 

I am trying to help out someone who is looking to use the JNOS bbs with
FLrig/FLdigi and have the HF radio scan groups of frequencies waiting
for connections. The group of frequencies will change based on time of
day for propagation changes. For example, 80 meters during evening or
overnight and 40 meters during daylight. The FLdigi would be the modem
and the FLrig would do all of the radio control functions. We can set up
scripting with JNOS and have it communicate with FLrig/FLdigi via TCP/IP.
Is this doable and where can I find the commands needed to make it happen
to build out the script? Thanks.

--
Charles J. Hargrove - N2NOV
NYC-ARECS/RACES Citywide Radio Officer/Skywarn Coord.

NYC-ARECS/RACES Nets 441.100/136.5 PL
ARnewsline Broadcast Mon. @ 8:00PM
NYC-ARECS Weekly Net Mon. @ 8:30PM


NY-NBEMS Net Saturdays @ 10AM & USeast-NBEMS Net Wednesdays @ 7PM
on 7.036 Mhz USB (alt 3.536)/1500 hz waterfall spot; MFSK-16 or 32

"Information is the oxygen of the modern age. It seeps through the walls topped
by barbed wire, it wafts across the electrified borders." - Ronald Reagan

"The more corrupt the state, the more it legislates." - Tacitus

"Molann an obair an fear" - Irish Saying
(The work praises the man.)

"No matter how big and powerful government gets, and the many services it
provides, it can never take the place of volunteers." - Ronald Reagan

Re: #wefax parsing filenames #wefax

 

Have a look through the source code, for that level of detail. It is very informative. Here is a snippet of results from searching for the word "phasing" in CXX files:
?
./src/wefax/wefax.cxx:void fax_implementation::skip_phasing_to_image_save(const std::string & comment)
./src/wefax/wefax.cxx: ? ? ? ?/// Maybe we were still reading an image when the phasing band was detected.
./src/wefax/wefax.cxx: ? ? ? ? ? ?LOG_VERBOSE("Detected phasing when in image state.");
./src/wefax/wefax.cxx: ? ? ? ? ? ?save_automatic("phasing",comment);
./src/wefax/wefax.cxx: ? ? ? ? ? ?LOG_ERROR(_("Should be in phasing or image state. State = %s"), state_rx_str());
./src/wefax/wefax.cxx: ? ? ? ?case RXPHASING:
./src/wefax/wefax.cxx: ? ?/// Because we might find a phasing band when reading an image.

#wefax parsing filenames #wefax

 

What do the different fields in a WEFAX image file mean?? For example,
wefax_20241210_161517_9108100_apt
?
20241210 and 161517 are date and time, that much is clear.? It seems that 9108100 = Boston, and 8502000 = New Orleans, but why?? And finally, instead of "apt" I also see "phasing" and "nocorr" in some filenames.? What do these mean?
?
Thanks much,
Eric

Re: [winfldigi] fldigi 4.2.06.14 development test version posted at

 

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Tobias,

A quick response to your testing.

1. End of signal wave shaping will be a little more difficult, but I'll see what can be done.

2. Each change in signal encoding/decoding necessarily not be backward compatible.? The result of using different different Viterbi polynomials and interleave depth.? No free lunch however, since increased interleave depth and more complex Viterbi means more demands on CPU performance.

3. Slow versus Fast CPU.? For anything other than an old P3 I recomment using Fast CPU setting.? Slow CPU setting tries to compensate by reducing the number of simultaneous path evaluations.

4. SNR evaluation is heuristic and the algorithms always have "factors" in the equations.? I'll do some additional testing with pure AWGN created with linsim.? Linsim is a PathSim replacement available for Win, Linux, and MacOS.? See

comptext and comptty allow one to measure the CER and BER associated with ASCII text and RTTY text files respectively.

TITLE AWGN S/N P1 SPREAD_1 OFFSET_1 P2 DELAY_2 SPREAD_2 OFFSET_2 P3 DELAY_3 SPREAD_3
AWGN S/N 1 10 0 0 0 0 0 0 0 0 0 0
CCIR 520-2 (Doppler Fading) 0 0 1 0.2 10 1 0.5 0.2 5 0 0 0
CCIR 520-2 (Flutter Fading) 0 0 1 10 0 1 0.5 10 0 0 0 0
CCIR 520-2 (Good Conditions) 0 0 1 0.1 0 1 0.5 0.1 0 0 0 0
CCIR-520-2 (Moderate Conditions) 0 0 1 0.5 0 1 1 0.5 0 0 0 0
CCIR-520-2 (Poor Conditions) 0 0 1 0.5 0 1 2 0.5 0 0 0 0
Direct Path 0 10 0 0 0 0 0 0 0 0 0 0
Frequency Shifter 0 0 1 0 500 0 0 0 0 0 0 0
High-Latitude Disturbed 0 0 1 30 0 1 7 30 0 0 0 0
High-Latitude Moderate 0 0 1 10 0 1 3 10 0 0 0 0
High-Latitude Quiet 0 0 1 0.5 0 1 1 0.5 0 0 0 0
Low-Latitude Disturbed 0 0 1 1








Low-Latitude Moderate 0 0 1 0.5 0 1 1 0.5 0 0 0 0
Low-Latitude Quiet 0 0 1 0.5 0 1 0.5 0.5 0 0 0 0
Mid-Latitude Disturbed 0 0 1 1 0 1 6 1 0 0 0 0
Mid-Latitude Disturbed NVIS 0 0 1 1 0 1 2 1 0 0 0 0
Mid-Latitude Moderate 0 0 1 0.5 0 1 0 0.5 0 0 0 0
Mid-Latitude Quiet 0 0 1 1
0


0



??

See attached files for jabberwocky.txt and jabberwocky_errors.txt

5.? AFC has no meaning for Thor.? I will disable the button.

6.? I will increase the AFC low pass filter coefficient to a maximum of 500.

Vielen Dank fürs Testen. Die Ergebnisse sind sehr gut.

73, David
W1HKJ


jabberwocky.txt
jabberwocky.txt
jabberwocky_errors.txt
jabberwocky_errors.txt

[winfldigi] fldigi 4.2.06.14 development test version posted at

 

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FYI

-------- Forwarded Message --------
Subject: Re: [winfldigi] fldigi 4.2.06.14 development test version posted at
Resent-Date: Mon, 09 Dec 2024 11:29:23 -0800
Resent-From: tsquare123@...
Date: Mon, 9 Dec 2024 19:29:17 +0000 (UTC)
From: T? via groups.io <tsquare123@...>
Reply-To: [email protected]
To: [email protected]



Hello David,

First of all many thanks for the updated FLdigi test version!


Here are the results and observations on THOR25 in brief. Please refer to the attached updated spreadsheet for details, if necessary.


1. Raised Cosine Signal Shaping: Excellent!

- Tested and confirmed OK: no more clicking when signing on using a Shape factor of e.g. 100 or more, while the setting '0' reproduces the previous state (non-shaped).

- Not sure whether the removed end of signal shaping might be an issue, since it clearly creates a 'click'.
=> This could be avoided, if the same (user-set) yet reverfsed raised cosine shaping was applied there, too.


2. New Thor-25 DigiMode Definition: Major Improvement!

- Compatibility with previous alpha test Thor-25 DigiMode Definition: NO (just for information).

- RSID (TX and RX incl. the new secondary RsID code 691): OK.

- Speed: similar to previous Thor-25 test version. OK.

- File Audio Playback (original FLdigi created THOR-25 stream): Text reproduced 100% OK (Columns H+I in the spreadsheet referred to below). OK.

- The signal decoding bandwidth ranges about +/- 250 Hz around the true center frequency (+/- 130 Hz with 'Slow CPU'). OK.

- Not shown in the spreadsheet: the SNR is stuck around +5 dB (3 dB with 'Slow CPU') when decoding the original (perfect) audio.
=> This is certainly not realistic and should be corrected before a final release.


3. PathSim Mid-Latitude Disturbed NVIS AWGN SNR 0dB resulting audio: RX text with 4 line errors (the previous test version had produced 10 errors)!

* See sheet 'PathSim NVIS THOR25A v4.2.06.14' see RUN #1 Columns B+C, RUN #2 Columns D+E, RUN #3 Columns F+G (Slow CPU). All previous sheets are unchanged:

- I also attach a gently filtered flac audio file (smaller size but keeping the entire relevant bandwidth unchanged) just for your information.

- Initially, for 38 consecutive lines or about 4 minutes, the decode was perfect!

- Thereafter, in a few lines, there were 1 or 2 decoding errors, leaving part of the text scrambled.
Note that if a linefeed was missing (error at the end of a line), I have corrected it manually to avoid auto-marking all lines below as errors.

- A repeat using the exact same audio a 2nd time has reproduced the same fair result, interspersed with the few errors described above. Repeatability OK!

- When checking [x] Slow CPU, the error rate increased to 14. Hopefully this might provide a hint as to where the remaining decoding issues may come from...?


* See sheet 'SNR PathSim NVIS THOR25 v.06.14':

- The FLdigi FEC log shows, that the signal is rated between error-free, yet still quite frequently at 50%, and once at 75% error, thus still a bit variable.

- The average SNR on this disturbed signal is rated at -2.3 dB (unchanged), and it varies quite a bit along the way, yet probably in phase with the simulation conds.


4. Questions:

- To find out about the remaining decoding issues, and possible further improvements:
=> Is there a way (e.g. using the existing log protocol - upon request?) to continuously track / log the current de-facto decoder frequency offset, SNR, and FEC?
=> In other words, could these values be added to the daily log file tags, e.g.
current definition: RX 1500 : THOR25 (2024-12-09 18:16Z): <...RX TEXT...>
extended definition: RX 1500 (1497): THOR25 -2.3 dB 75% (2024-12-09 18:16Z): <...RX TEXT...>
=> I thought about maybe 'seeing' whether the decoder does stay stuck on the 'correct' signal center frequency, or whether (and how) it starts sliding sideways?
=> Since decoding works so well over long stretches, maybe this might explain the short dropouts, and a slower 'AFC' in the THOR sense might stabilize the result...?

- The AFC Button is still active. Better deactivate it or does it have any function in THOR? I have not seen a difference when activated.

- On a related note, for MFSK AFC, if possible, I'd prefer allowing an even higher maximum low-pass filter setting, so far it's limited at 200 (quite helpful!).


Bottom line, this has been yet another amazing leap ahead in the new THOR-25 DigiMode definition!


Thank you, David!


73s Tobias

.-.-.
Am Montag, 9. Dezember 2024 um 15:37:32 MEZ hat Dave <w1hkj@...> Folgendes geschrieben:


Most recent change:

commit 0169172527f33938496aa6672adf7b0947922def
Author: dave-w1hkj <w1hkj@...>
Date:?? Sun Dec 8 17:20:08 2024 -0600

??? THOR25
?? ?
????? * add new thor modem with following characteristics
??????? . symlen = 320
??????? . samplerate = 8000
??????? . flushlength = 20
??????? . bandwidth = 460
??????? . IEEE coefficients for viterbi encode/decode algorithms
????????? THOR_K15? 15
????????? K15_POLY1 044735
????????? K15_POLY2 063057
????? * increased flush length for all baud rates
????? * added configurable start of signal shaping to these modem types:
??????? . psk
??????? . mfsk
??????? . rtty
??????? . thor
????? * removed end of signal shaping
????? * assigned secondary RsID code 691

Thor-25 signal showing RsID and 200 msec rise time at start of data stream.

73, David
W1HKJ

PathSim_Comparison_Mid-Latitude_Disturbed_NVIS_THOR25_vs_MFSK32_+_THOR32_2024-12-09.7z
PathSim_Comparison_Mid-Latitude_Disturbed_NVIS_THOR25_vs_MFSK32_+_THOR32_2024-12-09.7z

Re: FLDIGI MAC RTTY crashing

 

开云体育

That might be the problem. ?I will check and let you know.
Thanks
Ray

On Dec 7, 2024, at 9:13?AM, Mike Adams, AG7AB via groups.io <mbadamsaz@...> wrote:

?
Which program do you have controlling the rig (CAT)? I use Rumlog and Fldigi but have Fldigi controlling CAT. I've had problems with RL controlling CAT and definitely a problem if both apps are trying to control the rig.
?
Mike
AG7AB

Re: fldigi 4.2.06.14 development test version posted at

 

开云体育

Here is the notarized version for MacOS 15:


On Dec 9, 2024, at 9:37?AM, Dave, W1HKJ via groups.io <w1hkj@...> wrote:

Most recent change:

commit 0169172527f33938496aa6672adf7b0947922def
Author: dave-w1hkj <w1hkj@...>
Date:?? Sun Dec 8 17:20:08 2024 -0600

??? THOR25
?? ?
????? * add new thor modem with following characteristics
??????? . symlen = 320
??????? . samplerate = 8000
??????? . flushlength = 20
??????? . bandwidth = 460
??????? . IEEE coefficients for viterbi encode/decode algorithms
????????? THOR_K15? 15
????????? K15_POLY1 044735
????????? K15_POLY2 063057
????? * increased flush length for all baud rates
????? * added configurable start of signal shaping to these modem types:
??????? . psk
??????? . mfsk
??????? . rtty
??????? . thor
????? * removed end of signal shaping
????? * assigned secondary RsID code 691

<wea2zKMvIbefQko3.png>

<5PQl4U6BlcpXb8ry.png>

Thor-25 signal showing RsID and 200 msec rise time at start of data stream.

73, David
W1HKJ


fldigi 4.2.06.14 development test version posted at

 

开云体育

Most recent change:

commit 0169172527f33938496aa6672adf7b0947922def
Author: dave-w1hkj <w1hkj@...>
Date:?? Sun Dec 8 17:20:08 2024 -0600

??? THOR25
?? ?
????? * add new thor modem with following characteristics
??????? . symlen = 320
??????? . samplerate = 8000
??????? . flushlength = 20
??????? . bandwidth = 460
??????? . IEEE coefficients for viterbi encode/decode algorithms
????????? THOR_K15? 15
????????? K15_POLY1 044735
????????? K15_POLY2 063057
????? * increased flush length for all baud rates
????? * added configurable start of signal shaping to these modem types:
??????? . psk
??????? . mfsk
??????? . rtty
??????? . thor
????? * removed end of signal shaping
????? * assigned secondary RsID code 691

Thor-25 signal showing RsID and 200 msec rise time at start of data stream.

73, David
W1HKJ

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