14
votes
Accepted
What does CQ NM mean in FT8?
Now that I've seen a few other 2 letter abbreviations, I've figured out it means they're looking for a contact in New Mexico.
- 331
7
votes
Accepted
Should I add call signs with /R suffix to the logbook?
FT8 decoding can use a technique called a priori (AP) whereby it uses naturally accumulating information for the purposes of increasing apparent sensitivity by about 4 dB. There is an increased chance ...
- 18.5k
6
votes
Accepted
What does retain mean in the logging of WSJT-X 1.8.0?
When those boxes are checked, the values entered will be retained as the defaults for the next QSO to be logged.
Unchecked, the fields will revert to blank.
- 51.6k
5
votes
Accepted
If WSPR can go further than FT8, why do I only see local WSPR signals?
My guess, looking at WSPR reports, is that, on average (median), WSPR beacons are transmitted at power levels maybe in the range of 10 to 30 dB lower than the median of FT8 transmissions. e.g. 20 dBm ...
- 13.2k
5
votes
Accepted
My radio and audio output keep changing using WSJTX on FT8
I'm not familiar with the failure modes of SignaLink devices, but in general, a USB device disappearing temporarily likely means that its internal microprocessor or USB interface chip has been reset, ...
- 24.4k
5
votes
Accepted
Long callsigns in WSJT-X?
For the current "77-bit" versions of FT8 and MSK144 (as supported by wsjt-x version 2.0, released in late 2018, and newer), you can use these callsigns without doing anything special. Any combination ...
- 11.7k
3
votes
Can only use WSJTX in sudo
I would guess that your user is not in the dialout group. You can fix this with:
sudo adduser your_user_name dialout
Then log out and back in.
- 1,852
2
votes
Long callsigns in WSJT-X?
According to K1JT himself, the callsign field is rather restricted and must meet the same parameters as the one for JT65.
https://sourceforge.net/p/wsjt/mailman/message/35254350/
- 1,035
2
votes
Should I add call signs with /R suffix to the logbook?
I agree with Glenn's answer about AP decodes since this V0 is an invalid callsign, but I'd like to add that in general /R on a callsign typically means it is a "Rover", or a mobile station ...
- 156
2
votes
Accepted
Why does Tone Spacing decrease with increasing T/R Periods in WSJT-X modes?
The longer T/R periods also have a longer duration for each symbol. The longer each symbol is, the more finely the decoder can resolve the frequency of each symbol. So the slower modes make narrower ...
- 11.7k
2
votes
Accepted
Why is IC-7300 transmitting at zero power in "Rig" split mode with WSJT-X and FT8?
Short version of the answer:
VFO B was USB, not USB-D. After manually changing VFO B to USB-D it worked.
Longer version:
I went back to testing this again and finally noticed that the mode indicator ...
- 903
1
vote
Accepted
What AGC should I use in an Icom IC-705 when doing FT8 or other digital modes with WSJT-X?
Actually you can get AGC off on the 705. The process is a bit roundabout, but it's the same as the other Icom touchscreen radios.
Set the mode you're interested in (i.e. USB-D for FT8) because AGC ...
- 11.7k
1
vote
Can only use WSJTX in sudo
Probably, some or all files are owned by root.
Chown the files and change the ownership to yourself, for example.
- 7,864
1
vote
WSJT-X integration with Ham Radio Deluxe not working for automatic logging
Apparently the answer was that my Ham Radio Deluxe was outdated. I found on that computer I was running an old version (not by much, maybe a month or two). Upgrading to v6.8.0.372 (13-Feb. 2023) fixed ...
- 1,371
1
vote
IC7300 soundcard issues
Concerning how the Windows may connect the inputs ("Recording" channels) and the outputs ("Playback" channels), there are some ways you can hear the input channels in the output ...
- 111
1
vote
How to determine the problem with my FT8 TX in WSJT-X?
At long last, I got the radio to transmit just fine. At this point I'm using RigBlaster, although that's less because it was the solution and more because it's something I was trying along the way ...
- 255
Only top scored, non community-wiki answers of a minimum length are eligible