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Let me preface this by saying I don’t really know anything about raspberry pi, but have found some great tutorials on the web. Here’s my issue. I want to be able to work FT8 when I do SOTA/POTA activations and would like to do it on a raspberry pi.
At first I couldn’t even get WSJT-X to load up on the raspberry pi, but finally figured out how to get it loaded by running raspian stretch. I’m trying to go from the KX2 to the raspberry pi through a USB external sound adapter – https://www.amazon.com/gp/product/B00IRVQ0F8 and plugging the mic into the mic and speaker into the speaker port from the radio to the adapter.
I’ve hooked the antenna up to the radio and am seeing signals appear on the raspberry pi and have had some decode, but it’s not consistent and I have yet to be able to send any signals. I have the KX2 set to data mode and am not sure what I am doing wrong.
Does anyone else have a set up like this? Is there anything I’m doing that is obviously wrong? I think this will be a great set up if I can get it running.
Thanks in advance for any help.
Hi Jamey,
Can you tell what sound card ports that WSJT-X is using on the Pi side? That would be a place to start. Not sure how to handle PPT on the KX2 side – maybe via VOX?
I’m not sure of what sound card ports that WSJT-X is using on the pi – there are quite a few options. The big problem is that the radio and WSJT-X are not communicating to each other. I can get the pi WSJT-X to decode by setting the KX2 to 7.074 MHz, but if I hit “Enable Tx” it will give me the error “Rig Failure Hamlib error: IO error while opening connection to rig.”
[attachment file=”74577″]
This link has some promising information.
https://dl1gkk.com/small-portable-digital-amateur-radio-station/
Greg
AC1FS
Hi Jamey,
How did you physically connect the RPi to you KX3? What sort of cable did you use and how does it connect to the radio? Does the RPi SW give you any other choices for the serial port?
Hi Jamey,
Looking at this some more, I think the problem is that you need to make a COM port associated with your USB connection between the RPi and your radio. I don’t think that WSJT-X can directly talk to a USB port.
Hi Jamey,
The association of the USB to com port adapter happens automatically in Raspbian. To find out Which port you need to connect to you need to use the command line.
First without the radio cable connected issue this command.
ls /dev/tty
This will list all the assigned ports.
Then connect the radio cable and issue the above command again.
Look in the list for the new entry. That is the port that you need to use. I should look something like “/dev/ttyUSBx”, where x is usually a number.
Hope this helps,
Greg
AC1FS
Hi Jamey,
I made a typo in that last email.
The command you want to issue is ” ls /dev/tty*”. Without the quotes. In case you are not used to the command line you need to open a terminal window. It will be a fairly long list. Doing this before and after connecting the radio makes it easier to find the new port.
Greg
AC1FS
Again, thank you for all the help. I am getting closer! I now have control of the radio. I can change the frequency and it will change is WSJT-X as well! I am decoding signals nicely, but still can not transmit. I get the tone from the monitor as though I am transmitting, but nothing from the radio itself. If I turn the AF all the way up and the mic all the way up I get the transmit light to flicker on and off, but that happens as it’s transmitting and as it is receiving.
I’m not sure if I’ve got something mixed up with the settings in the radio or if I’ve got something wrong in the settings for WSJT-X.
I’ll keep tinkering and hopefully get it working. I am encouraged that I am closer tonight than I was last night.
73!
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