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Re: Next version FLdigi

 

Use Generic contest, set up as:
image.png

with attached MACRO definitions.


On Sat, Feb 15, 2025 at 5:16?AM Vladimir, RW6AVK via <rw6avk=[email protected]> wrote:
Good day David.
?
I've already tried to set it up several times before the test . But it doesn't work quickly, you have to abandon the setup and work in a bundle of "H1MM+ FLdigi". What should be specified in the "Text capture order" field? Is the "Exch In" checkbox needed?
?
Is it possible to expect our "Russian WW PSK Contest" along with macrosin the list of contests in the next versions? TNX.
?


Re: Running Linux on a Chromebook

 

¿ªÔÆÌåÓý

Re:-

sudo adduser fkatalenas dialout
.
.
.
For anyone else reading this in the future, change fkatalenas to your user name in the sudo command above.?

Or, just...

sudo adduser $USER dialout.

The system variable $USER contains the logged in username.

As you will see, with...

echo $USER


73.

Dave G0WBX.


Re: Next version FLdigi

 

Good day David.
?
I've already tried to set it up several times before the test . But it doesn't work quickly, you have to abandon the setup and work in a bundle of "H1MM+ FLdigi". What should be specified in the "Text capture order" field? Is the "Exch In" checkbox needed?
?
Is it possible to expect our "Russian WW PSK Contest" along with macrosin the list of contests in the next versions? TNX.
?


MacOS 15.3.1 USB and flrig

 

I recently tried to run flrig 2.0.05 and it tells me the COM port is not responding. I then go into config and select /dev/tty.SLAB_USBtoUART4. After Pressing init it hangs and a forced quit is needed. I think it all started after upgrading to macOS 15.3.1.
?
Was the serial driver replaced? I think something was changed in the USB drivers because upon boot my computer does not recognize my keyboard if it is connected to my USB hub. I need to connect direct to USB to be recognized. If the system is already running, using the hub/keyboard combo is not a problem.
?
If I use a Windows 10 VM, I have no issues.
?
Any ideas?
?
v/r,
?
Carlos


Re: Running Linux on a Chromebook

 

If you can open and run FLDIGI, but you can't select sound cards or transmit, you may need to add your username to the dialout group.?
?
Open a terminal and type:
?
sudo adduser fkatalenas dialout
?
Reboot or log out and log back in, and then you should be able to use FLDIGI. I just helped some guys get their Chromebooks running Debian to work with fldigi and js8call this way.?
?
For anyone else reading this in the future, change fkatalenas to your user name in the sudo command above.?


Re: Where to send user modified/tested/debugged sources?

 

¿ªÔÆÌåÓý

Git may be OK for experienced users, but is very dangerous for those of us who have not grown up with it and/or do not use it extensively every waking hour.

I for one managed to wipe out someone else¡¯s project by accidentally pushing something to the wrong place, because there was no guidance as to what where and how, or how to prevent such errors.? (Poor instructions + "finger trouble" on my part = disaster!)

And you don't get a "Are you sure" check, or any warning you're about to overwrite other stuff.

Thankfully, the main author had hourly backups "kept out of sight" for that very reason.? I was not the first it seems to cause that to happen!

I do have my own git/github/gitlab instances.? But I have never understood it/them, even after many hours of reading and experimentation with it.?? I've not come across any beginners tutorial either that makes sense.?? (I've also not found a reliable way to remove such instances from the cloud.)

Juila Evans's (@BORK) "comics" are better, but it's still confusing and difficult to follow.

Each version seems to do things differently each time (even locally hosted) often seemingly not updating a group of files, but saying it has, and storing the new/updated stuff somewhere else on the tree, without warning.? That, and not reporting where it put it!

OK lots of people use it (them.)? But I for one do not understand the way it works, I don't "think" that way.? (I'm obviously running an 8 bit grey cell OS here!)

Sad to say, but it needs a cross platform "front end" that is consistent and full of procedural error traps for us meer mortals who only wish to use it "part time" on an add-hoc basis.? But that would open yet another can of wriggly things too.

Yes, I can download a project, follow the build instructions and get success that way (GQRX, WSJTX, QSSTV, Hamlib and so on) but don't ask or expect me to push any changes back up the greasy pole, should I find a need and alter anything.

Believe me, I do wish I could understand how that all works.

73.

Dave 'WBX.

PS:? Temporary web server for local network use?

Take a look at:-?

and:? (linked from the above)?

Many choices of "one liners".?? I've used the basic Python type many times for quick and easy transfer between machines on the same LAN, or testing some arbitrary code via localhost on the same machine.

>><<





Re: Running Linux on a Chromebook

 

Jindra,
?
thanks a lot.? Your detailed approach is a try I will apply to, as soon as I can plan (I think a full day of work :-)).?? Crostini is the "internal" linux embedded in ChromeOS, installing it is just a couple of click and does not impact on the standard OS.?? Unfortunately it is not a full linux machine and cannot be used with HAM software...
?
The idea to have a full linux, keyboarded, tablet is great, will take the risk of bricking the unit.?? Also if Lenovo duet is a cheap unit, probably a light linux install will give it a second life
?
?
Roberto


CTY-3505 Country Files - 13 February 2025

 

The Country (CTY) Files were updated on 13 February 2025:



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 February 2025 (CTY-3505)
VER20250213, Version entity is South Orkney Islands, VP8/o

Added/changed Entities/Prefixes/Callsigns:

* KC4/KB1EHE and KC4/KB1IFZ are both Antarctica, CE9
* VK0/FT4YM/P is Antarctica, CE9 in CQ zone 29, ITU zone 70
* AM64KZ, EA5EZ/P and EA8AAH are all Spain, EA
* TO3Z is Guadeloupe, FG
* TO1P is St. Barthelemy, FJ
* FO/F6BCW is Marquesas Islands, FO/m
* GB4CDG is Scotland, GM
* IQ0PM and IR0APTT are both Sardinia, IS
* K1RS, K5XI, KD4STN, N9OHW, NE1LA, W0SX, W1PAA, W3LS, W3NX, W9NC,
WA9BTV, WC2A and WV0T are all United States, K in CQ zone 3, ITU zone 6
* K7KMM is United States, K in CQ zone 3, ITU zone 7
* K7KTM is United States, K in CQ zone 4, ITU zone 6
* AD7CL, AI7PM, KC3OL, KC9DGP, KC9LBO, KD6AF, KD9OFG, KS9A, N7RI, N9CNF,
WB9PRG and WW8L are all United States, K in CQ zone 4, ITU zone 7
* AI5FK, K0BBQ, K2OO, K4BWP, KA5NDH, KC4NX, KM4ECH, KN4DUA, KO5S, N4SB,
N4TLM, NK3V, W3HDH, W3WCT, W4GHD, W4KD, W4SHL, WA4USA, WA4VXW, WD4NYL
and WE5E are all United States, K in CQ zone 4, ITU zone 8
* KF6HDJ, N8VU, W8CMK, W8TMT, WB6BEE, WB9DBD and WV8HAT are all United States, K in CQ zone 5, ITU zone 8
* KJ6FIP and WA8JQP are both Hawaii, KH6
* LU1XOP/D is Argentina, LU
* R102AE, R102ME and R9YDX/6 are all European Russia, UA
* R4DB/8 is Asiatic Russia, UA9 in ITU zone 20
* R0QAW/P is Asiatic Russia, UA9 in CQ zone 18, ITU zone 31
* R8AIM/0 is Asiatic Russia, UA9 in CQ zone 19
* UT1KY/WAP and UT7UA/WAP are both Ukraine, UR

Removed Entities/Prefixes/Callsigns:

* 3V8CB/YOTA in Tunisia, 3V
* L36Z and RI1ANE in Antarctica, CE9
* TX24HAID in New Caledonia, FK
* IP0Y, IR0RCAG and IR0ROLB in Sardinia, IS
* AA7TJ, AE4M, AG5AT, AI7C, AJ0SE, AJ6TE, K0JJ, K2AK, K3DMG, K3LKS,
K5UF, K6DJ, K9KSU, K9VD, KA4RUR, KB9DAK, KC9CSQ, KD9Z, KE4QCY, KF9MT, KI6HQT,
KN4CNU, KR7Q, KW4OV, KZ4HS, N0VFJ, N1CC, N1NYT, N3AWS, N4JKD, N4ML, N7CMJ,
N7MSI, N7RCS, N9SXF, NN4H, NR5NN, NX7U, W0PE, W8NUD, W8RD, W9BED, WA4CDP,
WB4DKQ, WD9FJL and WI6T in United States, K
* K3RW in Hawaii, KH6
* KK7EUA in Alaska, KL
* KV4BT in US Virgin Islands, KP2
* KG7BLF in Puerto Rico, KP4
* R100AE, R100ME, R110DAR, RQ9F/4, RW6MD/1, RX9SN/6 and UB8M/1 in European Russia, UA
* RN1B/2 in Kaliningrad, UA2
* R0KA/9, R0WA/P, R100URC, R4IY/9 and RV7B/9 in Asiatic Russia, UA9
* KC4/KB1EHE and KC4/KB1IFZ 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: Linux Mint works on one user account but crashes on another on Linux Mint 22.1

 

Fixed it!? When I setup WFVIEW,? it specified using QT audio (default) and the default settings in their manual . Sine Fldigi does Port Audio, I set WFVIEW to Pot Audio and played with the settings until I heard good audio in the monitor on Fldigi.?? Since I have? a USB headset, I set it to be the monitor? and all is good ?

On Fldigi my settings are:

Port Audio
Capture - Loopback PCM 10,1
Playback- PCM 11,1

WFVIEW settings:

Sample rate: 16000
Full Duplex
Port Audio
Audio Output- Loopback: PCM (hw:10,0)
Audio Input- Loopback:PCM (hw:11,0)

Just another Linux oddity .....

John
N0QJA


On Thu, Feb 13, 2025, 7:44?AM John Kosobucki, N0QJA via <kosobucki.john=[email protected]> wrote:

By profile,? I? mean the 2nd user account.? Nothing was copied between accounts. I did get audio eventually after a reboot and the original problem disappeared.. Now I am left with a motorboating sound in the received audio.? I am not listening to the audio from WFVIEW as it is being passed to Fldigi. In the Configuration under sound card,? I have auto set for a baud rate and 10,1 and 11,1 for the port audio. I am trying to listen to audio via Fldigi so I have the box checked and default in it. On the View tab in the main window, RX audio is checked. There's audio with a motorboating sound in it.

Maybe I have to install it for each account? Haven't tried that. Maybe? Pipewire is doing something.? As far as Pipewire goes, Fldigi shows up as an Alsa device when I? look at applications in Sound.? Might be a feedback loop or I miss applied something.

When? I? set up the second Fldigi and WFVIEW,? both of the configurations started from scratch.? There was no carryover from the first user account.


On Wed, Feb 12, 2025, 7:27?PM Bob Cameron, VK2YQA via <bob3bob3=[email protected]> wrote:

Hi John

Just some thinking out loud. I can't speak for wfview.

My first thought was that if the .fldigi profile/directory was simply copied, then there are some hard references in the config files that will point to the other user's structure. eg fldigi.prefs has a reference to the macro file and fldigi_def.xml has various file locations that may need editing. If copied as root the r/w permissions also may need to be updated.

You did however say "created the profile twice", (which profile?) so are there any group memberships setup for the first account that are not in the 2nd? The one that comes to mind is the dialout group, but depending on your environment may also include "audio".

I am assuming that you are not running the user programs concurrently, nor have any user specific program or library installs.

Cheers Bob VK2YQA

On 13/2/25 09:38, John Kosobucki, N0QJA via wrote:
I have an Asus I5 laptop that I? set a second account up on to use Fldigi and WFVIEW together.? ?
?
I have created the profile twice.?
?


Re: Running Linux on a Chromebook

 

Roberto,

I don't know what is Crostini, but I think I had a similar problem with that Dell 3180. When I unlocked developer mode I was unable to complete the procedure described at site mrchromebox.tech. Basically any second network request ended with DNS error. Also, as in your case, USB ports were locked. Probably there was some kind of additional security policy somehow activated in the system.
What I did:?
1. I moved all scripts needed to complete the reflashing task on a PC in my LAN. On that PC I started a simple web server. In my case it was nginx (the easiest to install and set up) but I think you could use anything, even "Simple HTTP server" plugin in VS Code IDE.
2. Then I carefully analyzed the scripts and replaced any HTTP download (curl ... ) by a local URL, i.e. URL based on the address of my PC running? HTTP server.
3. During the analysis I found reference to one or two other files that the script would further download from the internet (one of them was the new ROM content) and also fixed all URLs to match their new location in LAN.

Then, on the chromebook, I used the instruction from mrchromebox.tech except that I downloaded the initial script from the HTTP server in LAN. Then everything worked as it should - obviously download from local network was not blocked, luckily.

In other words, I wiped out ChromeOS from the chromebook completely and installed a new BIOS and Linux (only). I hope I understand your probem correctly. In general I saw some instruction videos how to install Linux on Chromebooks that coexists with th installed ChromeOS but I think such scenario on a computer with so limited resources is a dead end.

73 Jindra?


?t 13. 2. 2025 v?17:35 odes¨ªlatel Roberto Ranzani, I2RWR via <roberto.ranzani=[email protected]> napsal:

Hi Jindra
?
sorry, you are far from the point:? Crostini does not see ANY USB device, also a memory stick is not loaded.?
?
the application cannot see any peripheral, so the radio model is only the next problem, I hope :-)
?
?
Roberto
?


Re: Running Linux on a Chromebook

 

Hi Jindra
?
sorry, you are far from the point:? Crostini does not see ANY USB device, also a memory stick is not loaded.?
?
the application cannot see any peripheral, so the radio model is only the next problem, I hope :-)
?
?
Roberto
?


Re: Linux Mint works on one user account but crashes on another on Linux Mint 22.1

 

By profile,? I? mean the 2nd user account.? Nothing was copied between accounts. I did get audio eventually after a reboot and the original problem disappeared.. Now I am left with a motorboating sound in the received audio.? I am not listening to the audio from WFVIEW as it is being passed to Fldigi. In the Configuration under sound card,? I have auto set for a baud rate and 10,1 and 11,1 for the port audio. I am trying to listen to audio via Fldigi so I have the box checked and default in it. On the View tab in the main window, RX audio is checked. There's audio with a motorboating sound in it.

Maybe I have to install it for each account? Haven't tried that. Maybe? Pipewire is doing something.? As far as Pipewire goes, Fldigi shows up as an Alsa device when I? look at applications in Sound.? Might be a feedback loop or I miss applied something.

When? I? set up the second Fldigi and WFVIEW,? both of the configurations started from scratch.? There was no carryover from the first user account.


On Wed, Feb 12, 2025, 7:27?PM Bob Cameron, VK2YQA via <bob3bob3=[email protected]> wrote:

Hi John

Just some thinking out loud. I can't speak for wfview.

My first thought was that if the .fldigi profile/directory was simply copied, then there are some hard references in the config files that will point to the other user's structure. eg fldigi.prefs has a reference to the macro file and fldigi_def.xml has various file locations that may need editing. If copied as root the r/w permissions also may need to be updated.

You did however say "created the profile twice", (which profile?) so are there any group memberships setup for the first account that are not in the 2nd? The one that comes to mind is the dialout group, but depending on your environment may also include "audio".

I am assuming that you are not running the user programs concurrently, nor have any user specific program or library installs.

Cheers Bob VK2YQA

On 13/2/25 09:38, John Kosobucki, N0QJA via wrote:
I have an Asus I5 laptop that I? set a second account up on to use Fldigi and WFVIEW together.? ?
?
I have created the profile twice.?
?


Re: VARA.exe in Linux on a Chromebook (4GB RAM, 16GB eMMC)

 

Hi, Bob,

I missed your answer and found it only now.
What you propose is an interesting idea. So far I had the impression that wine32 requires wine (64-bit base) to be installed. I will ask someone at winehq or in a related forum. OTOH wine32?+ win32 architecture install libraries 64-bit version of which seem to be present anyway in the system (current Debian is 64-bit only IIRC). I think I need to be looking for 32-bit (i386) Linux, but I am afraid that has been long unavailable.

73 Jindra

p¨¢ 7. 2. 2025 v?8:32 odes¨ªlatel Bob Cameron, VK2YQA via <bob3bob3=[email protected]> napsal:

Hi Jindra

Not an expert on this so mainly thinking out loud.?

I assume you space issue on the 16GB came from installing wine32 and the i386 linux architecture on top of the 64bit? (ie sudo dpkg --add-architecture i386) There doesn't seem to be a wine64 dependency on the wine32 installation (in Debian) so maybe see if wine32 ONLY can be installed? (assuming you don't want to run any 64bit Windows programs). WineHQ however has lots of useful info. Maybe think about doing a manual strip of unused applications/libraries first?

Cheers Bob VK2YQA

On 7/2/25 17:32, OK4RM via wrote:
Hello,
?
recently I purchased and reflashed Lenovo N23, 4GB RAM, 16 GB flash. Running JS8Call to my complete satisfaction, using QDX and/or QMX transceiver (both have built-in USB CDC's for serial and sound interface). The chromebook runs from full charge at least 9 hours, maybe more. With QMX, QDX except battery there are no extra boxes or parts to take in my backpack, such as digirig etc.
?
I tried to install VARA (because it's a standard in one of emcomm groups I participate in) but no success, the reason being that VARA is available as Win32 app only and the necessary libraries don't fit into the 16 GB disk. Were it 32 GB or were VARA also a x64 app everything would be fine. I tried to convince the author, EA5HVK, to make a 64 bit build alongside the 32 bit version but he seems to be reluctant to accept any proposals. I wonder what will he do after 32-bit layer disappears from Windows (after 2025).
?
I just received a used Dell Chromebook 11 3180 with 32 GB flash, reflashed it after some struggle and so far everything seems to work. I have not yet started installing the VARA stuff.
?
Would you know of another solution as alternative to hunting 32 gig chromebook in the 2nd hand market? "Install Windows to avoid headache" variant has already been taken by Jose (EA5HVK) but he doesn't know that due to Windows quirks our radio club 24/7 JS8 is out of service every couple of days ;-)?
?
73 Jindra OK4RM


Re: Where to send user modified/tested/debugged sources?

 

Maybe using git would make this much easier? SourceForge is not a kind of source code repository made for collaboration, it is rather an advertising display.

73 Jindra ok4rm

Dne so 8. 2. 2025 23:59 u?ivatel Dave, W1HKJ via <w1hkj25=[email protected]> napsal:

You are probably aware of the preferred?C++ coding style, but to refresh you memory read here:?

1.? The easiest way is to submit a compressed source file containing all new or modified source files.

2.? Next would be to create a diff file for the entire application source.? You would need to build the diff based on the original uncompressed tar.gz source image and the modified image.

3.? Finally you can become a git developer with your own private upload directory at Source Forge.? After getting over the learning curve bulge this is the simplest method.

Send the files generated (1) or (2) to me at w1hk25@...

73, David
W1HKJ

On Sat, Feb 8, 2025 at 8:46?AM Dave, G?WBX via <g8kbvdave=[email protected]> wrote:
One for Dave 'HKJ.
?
What is the preferred way to submit modified/tested/debugged sources?
And in what format?
?
(I for one would "prefer to avoid" git etc, as I have never had a good experience with those systems, being all too easy to "royally mess things up!")
?
73.
?
Dave G0WBX.
?


Re: Linux Mint works on one user account but crashes on another on Linux Mint 22.1

 

¿ªÔÆÌåÓý

Hi John

Just some thinking out loud. I can't speak for wfview.

My first thought was that if the .fldigi profile/directory was simply copied, then there are some hard references in the config files that will point to the other user's structure. eg fldigi.prefs has a reference to the macro file and fldigi_def.xml has various file locations that may need editing. If copied as root the r/w permissions also may need to be updated.

You did however say "created the profile twice", (which profile?) so are there any group memberships setup for the first account that are not in the 2nd? The one that comes to mind is the dialout group, but depending on your environment may also include "audio".

I am assuming that you are not running the user programs concurrently, nor have any user specific program or library installs.

Cheers Bob VK2YQA

On 13/2/25 09:38, John Kosobucki, N0QJA via groups.io wrote:

I have an Asus I5 laptop that I? set a second account up on to use Fldigi and WFVIEW together.? ?
?
I have created the profile twice.?
?


Re: No RF output on digital suddenly

 

On Wed, Feb 12, 2025 at 8:38?AM Dave, W1HKJ via <w1hkj25=[email protected]> wrote:
Richard,

Is there power out in CW, keyed at the 991A ?

No, I hear it in the monitor but no?power out.?

Thanks,
Richard
KF5OIM


Re: Linux Mint works on one user account but crashes on another on Linux Mint 22.1

 

One suggestion to troubleshoot this crash would be to use the 'strace' command on fldigi. This will help pinpoint where the failure is occurring.

If you're launching fldigi from the terminal, you could use a command like this:

```
strace -ff -tt -o strace fldigi 1>stdout 2>stderr
```

It's best to run this in a fresh directory, as it will create a 'strace.<pid>' file for each process forked by fldigi. It will also collect the stdout and stderr output from fldigi.

If you could share the generated strace files, they might provide clues about the cause of the issue.

73,
Neil N1HAN



On Wed, Feb 12, 2025 at 5:38?PM John Kosobucki, N0QJA via <kosobucki.john=[email protected]> wrote:

I have an Asus I5 laptop that I? set a second account up on to use Fldigi and WFVIEW together.? ?
?
I have created the profile twice.?
?
The first profile has Fldigi on it as well as WFVIEW.? I was setting them up to use with another radio.? The first one works fine.?
?
WFVIEW works fine on the second account as do other programs that are installed.?
?
If i start Fldigi from the desktop, the menu, or in the terminal ot crashes with a segment fault. This happens with or without WFVIEW running as I? am doing a virtual audio cable between the two.?
?
?
?
Any suggestions?
?
N0QJA?
?
?
?
?


Linux Mint works on one user account but crashes on another on Linux Mint 22.1

 

I have an Asus I5 laptop that I? set a second account up on to use Fldigi and WFVIEW together.? ?
?
I have created the profile twice.?
?
The first profile has Fldigi on it as well as WFVIEW.? I was setting them up to use with another radio.? The first one works fine.?
?
WFVIEW works fine on the second account as do other programs that are installed.?
?
If i start Fldigi from the desktop, the menu, or in the terminal ot crashes with a segment fault. This happens with or without WFVIEW running as I? am doing a virtual audio cable between the two.?
?
?
?
Any suggestions?
?
N0QJA?
?
?
?
?


Re: Running Linux on a Chromebook

 

Hi, Roberto,
software packages from repositories are usually quite out of date. If you need to support CAT of newer or less popular model of trx, often it helps to build the software from source.
?
73 Jindra
?
On Sun, Feb 9, 2025 at 04:04 PM, Roberto Ranzani, I2RWR wrote:

I have a Chromebook Lenovo CT X636F.? Tried to use Crostini (crouton): can install FLDIGI and run it but, as stated by some online help, Linux software running in Crostini can only see "supported peripheral". FLDIGI can't see my Xiaegu and, in general, Crostini can't see any simple USB drive too! Anyone has better results?
?
Roberto, I2RWR
?
?


Re: No RF output on digital suddenly

 

Richard,

Is there power out in CW, keyed at the 991A ?

David

On Tue, Feb 11, 2025 at 8:11?PM Adrian Fewster, VK4TUX via <vk4tux=[email protected]> wrote:

Richard, I also found these for reference ;

/g/FT-991A/topic/no_usb_tx_audio_on_wsjtx/80986245


regards


Adrian ... vk4tux


On 12/2/25 12:03, Richard Shaw, KF5OIM via wrote:
I avoided putting pictures in my original post but just to add some details...

I've been on Fedora since?version 12 and have been a packager for over 12 years so while I always try to accept the fact that I may have missed something simple, I'm pretty?sure that's unlikely in this case.

For WSJT-X I have used pipewire and configured the audio via pavucontrol as well as selected the audio device manually. No dice...

I've also done the same in Fldigi trying to get PSK to work. Same results.?

image.png
As previously mentioned, when I transmit the VU meter under the device does show activity...

image.png

The PCM2903B device is the USB sound card for my FT-991a.?

Thanks,
Richard
KF5OIM