CAT control of my KX2 works from the sotacat.local page in my iPhone browser. I can transmit CW from the sotacat.local page. I then launch Sotamat from that browser page, select “SotaCAT” as the transmission channel. I press the “Transmit” button. The button briefly changes to “Preparing radio”, then changes back to “Transmit”. The radio does nothing.
I’m a new SotaCAT user, but not a new Sotamat user. I purchased my SotaCAT assembled from Inverted Labs, and am trying to use it with my KX2.
After updating the SotaCAT firmware and following all the configuration instructions, almost everything seems to work, except the actual transmit of the FT8 to spot via Sotamat. The cat control from sotacat.local works very well. From the web browser I can command my KX2 to send CW and it works.
I believe I’m running the updated versions of everything. Latest SOTAmat app from the App Store, and latest firmware download from https://sotamat.com/sotacat/
I can connect the SotaCAT via USB to my PC and monitor the console using the “Connect” button on the https://sotamat.com/sotacat/ page.
When I use sotacat.local to launch the Sotamat app, in the SOTAmat app I can select “SotaCAT” (as opposed to Network or HF FT8 Audio). When I push the Sotamat “Transmit” button to send my spot command, the button changes to “Preparing radio…” for a second, and then the button changes back to "Transmit. Nothing happens on the KX2. No transmission. No error message from the app.
I also tried SotaCAT with my KH1, again CAT control works but the Transmit button changes to “Preparing radio…” for a second, and then the button changes back to "Transmit”. There is no actual transmission.
KX2: MCU 3.02, DSP 1.52 reported from the KX2 Utility
SOTAmat V2.2.2 build 122 reported from the SOTAmat app.
SotaCAT version: K5EM version 1 build date 2026-03-23 09:32 reported from sotacat.local
Thanks and 73,
Tony, KA3ZPH
#sotacat