"I operated with the CTX-10 for the first time during ARRL Field Day of June 2019. I broadcast into two compromise non-resonant antennas, so I employed an external ATU. The space weather was horrible, but that didn't stop this hardly little rig from performing magnificently. I obtained 36 QRP (at 5 watts RF out) QSOs in about 4 hours under adverse operating conditions. It was tough going due to the lousy space weather, but I nonetheless received routinely excellent audio and signal reports and managed to bust into more than a few pileups involving other operators who were working barefoot to high power. I even received a few 5X9 signal reports in the midst of the RF mess that characterized the marginal propagation that I experienced. That's pretty good for a QRP rig not even operating at its rated maximum of 10 watts RF out (which is SSB QRP BTW except for ARRL Field Day). Very easy to operate. Hook up a radiator and mic or key and go for it. The internal battery lasts for a good long time and you don't even have to mess with complicated menus to get the radio operating. I lasted the nearly 4 hours of operating on the internal batteries alone. Robust chassis and RF output FETs. It even looks like a radio instead of like a plastic box with attitude. In short, a great rig. I am a very happy customer!"
Noting the fact that this is a 10 watt transceiver, my first contact with my CTX-10 was KH7XS in Hawaii on 17m CW. From central Pennsylvania using a dipole oriented the wrong way. This is what you can do with a 10 watt rig.
While this is subjective, I was especially impressed by the user interface. I would say that the interface is excellent. It’s very intuitive and I was impressed that all the settings could be accessed with little effort.
I’ve worked in electronics manufacturing and I’m also a former USCG Electronics Technician. I will tell you that this is a robustly constructed rig. It seems almost Mil-Spec. Everything about it, from the display to the feel and action of the knobs feels high quality.
Bottom line is that I really like this radio. And because it’s an SDR radio, I’m looking forward to how it changes as new features are added in the future. (NOTE: As I was writing this a new firmware update came out that added capabilities).
This is a pleasurable rig to use. I’d recommend it to anyone who wants a robustly constructed and easy to use low power transceiver.