Questions tagged [wsjt-x]

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4 votes
2 answers
115 views

Why is SNR for FT8 defined using the noise power in the 2500 Hz channel containing the FT8 signal?

I see the term "SNR_2500" is often use to make it clear. Is it useful to use this SNR definition in some contexts? Is this kind of convention used in other digital modes or communication ...
gschro's user avatar
  • 157
0 votes
1 answer
525 views

What AGC should I use in an Icom IC-705 when doing FT8 or other digital modes with WSJT-X?

The User Guide for WSJT-X says It is usually best to turn AGC off or reduce the RF gain control to minimize AGC action, but the Icom IC-705 seems not to have an option to turn AGC off, only to set it ...
Pablo Fernandez's user avatar
2 votes
0 answers
451 views

wsjt-x problems with windows 11 Icom 7300 USB sound hangs

Description of problem: WSJT and JTDX both stop receiving sound after about 2-3 hours when running on Win 11 with ICom 7300. This did not happen with my Raspberry Pi running the same rig. The ...
Peter Burke's user avatar
1 vote
2 answers
107 views

Can only use WSJTX in sudo

I am trying to use WSJT-X to make FT8 Contacts on Pop! OS (Ubuntu-based) and with an IC-7300. I entered all the correct settings into WSJT-X, but it could not connect to my transceiver, and WSJT-X ...
owabs's user avatar
  • 33
1 vote
1 answer
190 views

WSJT-X integration with Ham Radio Deluxe not working for automatic logging

I have both Ham Radio Deluxe and WSJT-X configured the way the documentation recommends: but when a QSO finishes in WSJT-X it's just not logged to HRD. Nothing happens, there's no errors. Any ideas ...
Pablo Fernandez's user avatar
0 votes
0 answers
59 views

No Tx on Wsit-X

Installed Wsit-X on windows 10, it only transmits when I press tune, However, It is not transmitting even when I press Enable Tx or Tx Next or both.
Leighton's user avatar
0 votes
2 answers
63 views

Why does Tone Spacing decrease with increasing T/R Periods in WSJT-X modes?

In various weak signal modes of WSJT-X, the Tone Spacing decreases with increasing T/R Periods. For instance for FST4 / FST4W (as decribed on page 1 of the Quick-Start Guide) we see: T/R period (s) ...
JayPulsar's user avatar
2 votes
1 answer
364 views

IC7300 soundcard issues

I have a brand new Dell XPS laptop running windows 11 pro. The rig is an IC7300 which I had running WSJT-x (JTDX) as well as other digi modes using ham radio deluxe fine on an older (10 year old ...
w4gne's user avatar
  • 21
1 vote
1 answer
735 views

How to determine the problem with my FT8 TX in WSJT-X?

I am trying to QSO on 17m, 20m, 40m, and 160m with an IC-756PRO. I’m using WSJT-X in FT8 mode via a CI-V for CAT control and SignaLink for audio. System sound settings appear correct. Control tests of ...
Hack-R's user avatar
  • 255
0 votes
0 answers
247 views

Access problem (?) Ubuntu 22.04 LTS

Radio: FT-991 I work usually in Mint 20.3 Mate; FLRig, FLDigi, JS8, JTDX, WSJTX all run ufb Installed a Ubuntu 22.04 LTS (on another Laptop) Now: FLRig, FLDigi: after setting permission / Owner - ...
HB9FIH's user avatar
  • 47
3 votes
1 answer
1k views

Why is IC-7300 transmitting at zero power in "Rig" split mode with WSJT-X and FT8?

I am successfully running FT8 with WSJT-X on Windows 10 with my IC-7300. I am using IC-7300 as the rig. On reading the official WSJT-X User Guide (and various ...
QuantumMechanic's user avatar
3 votes
1 answer
461 views

If WSPR can go further than FT8, why do I only see local WSPR signals?

I've been scanning through the bands using WSJT-X to pick up FT8 and WSPR. Using a VHF discone, I decode messages from nearly 10,000 km away, consistently, when listening for FT8. But when switching ...
directedition's user avatar
1 vote
1 answer
1k views

My radio and audio output keep changing using WSJTX on FT8

TL;DR Laptop keeps switching between Signal Link audio output and speakers. Problem goes away when I turn TX knob down far enough on Signal Link. I just bought a SignalLink and have it connected ...
Adam KC0DAD's user avatar
4 votes
2 answers
1k views

Should I add call signs with /R suffix to the logbook?

Sometimes in FT-8 mode I receive calls like this one: It happens 2-3 times a week. The problems are: 1) I never could look up such call signs 2) I tried to reply, but never got answer 3) I don't ...
Aleksander Alekseev - R2AUK's user avatar
9 votes
1 answer
838 views

What does CQ NM mean in FT8?

I saw someone on 20m FT8 this morning calling "CQ NM". What does NM mean in this context? They followed the NM with their call and grid as usual.
xxpor's user avatar
  • 331
5 votes
2 answers
2k views

Long callsigns in WSJT-X?

During the month of May (2018) a lot of Belgian club stations can use callsigns in the format OT70xxx. (The xxx is always 3 letters, for example our club station uses OT70TRA.) In WSJT-X it seems ...
ON5MF Jurgen's user avatar
4 votes
1 answer
202 views

What does retain mean in the logging of WSJT-X 1.8.0?

If you have automatic prompt for logging on WSJT-X, at the end, you get this dialog: What does the "Retain" checkboxes do when you check them?
Pablo Fernandez's user avatar