Hi Mike and the wsjt development team.
Thank you for the suggestion about my system.
I tested the USB sound cards of JT65 with not used the linear amp today.
So probably TX output was 25W.
I install an isolation unit and a Ferrite Core Clamp between the PC and the 4P
HUB that connects the ASUS U7 and Sound Blaster HD right now.
But Okay, I have a Ferrite Core Clamp ZCAT3035 and I can try installing it with
H-pol audio line between the IC-746pro and The Sound Blaster.
And I have ASUS U5 but I think that IF U5 and U7 were on the same PC then could
not be shared due to conflicting USB ports.
But I also have a UMC202HD sound card.
If U5 doesn't work due to conflicting USB ports, I'll try testing UMC202HD.
Sorry I will tell you about test result tomorrow.
Taka, JP3EXR
From: Black Michael
Sent: Monday, January 8, 2024 10:33 PM
To: wsjt-devel@lists.sourceforge.net
Cc: JP3EXR
Subject: Re: [wsjt-devel] I have in trouble JT65B of WSJT-X 08th Jan
For the most part all but one of your "no good" involve the Sound Blaster on an
Input channel.
So two suggestions.
#1 Put a choke on the audio lines for all your sound lines into the Sound
Blaster. Possible RFI into the computer might be locking up the card.
#2 Replace the Sound Blaster with another ASUS. I assume the driver for the
Sound Blaster is really old.
Mike W9MDB
On Monday, January 8, 2024 at 04:29:02 AM CST, JP3EXR via wsjt-devel
mailto:wsjt-devel@lists.sourceforge.net> >
wrote:
Hi wsjt development team.
Thank you for supporting me.
I send attached files of the test result, input and output audio port of two
sound cards, and my system diagram.
All combinations have test finished.
Please check the test result of the Excel sheet.
Sorry I don't know why but you are able to see Okay and No good results.
I expected all the test results to be No good, but that was not the case.
Sorry, but I don't understand why this is happening.
Will this result help the development team?
I installed just Windows 10 64bit OS and two sound card drivers and two JT65 of
WSJT-X in advance so I was testing it with the simple PC.
And then I checked all combinations.
I am combination test with the two audio sound cards.
Two inputs and two outputs, total 16 types.
And each test number is a maximum 5 times for tx V and tx H.
Problems might occur if you test more than that number of times.
Unfortunately, the test results did not work with the port I use setting.
I hope you can solve in my trouble it with software.
The test environment of my PC is still in place.
Please contact me if there is anything I can do to help.
Taka, JP3EXR
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