All Questions
13 questions
2
votes
2
answers
554
views
What do the WSJT-X split frequency options actually do under FT8?
Maybe I have this all wrong, but as I understand FT8, we're all communicating within a slice of the band ~3 kHz wide. Within this slice, we each have our own sub-slice, and the location of my slice is ...
- 123
0
votes
2
answers
190
views
FT8 not displaying
Why can't I decode the FT8 when using WSJT-X on HF? At first, it decoded one but then, nothing showed up. I didn't change anything. I can still hear the FT8 signals clearly but the software won't ...
- 805
4
votes
2
answers
235
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 ...
- 451
2
votes
0
answers
656
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 ...
- 21
1
vote
2
answers
163
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 ...
- 33
1
vote
1
answer
1k
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 ...
- 255
1
vote
2
answers
9k
views
wsjt-x problems with windows 11
When upgrading from previous version of the windows operating system to windows 11 wsjt-x stops receiving the output from the radio. What should I look for?
- 211
3
votes
1
answer
2k
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 ...
- 1,089
3
votes
1
answer
555
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 ...
- 163
4
votes
2
answers
2k
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 ...
9
votes
1
answer
918
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.
- 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 ...
- 823
4
votes
1
answer
213
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?
- 1,401