But back then, the delivery time of a January-ordered FX-4C coincided with a planned move to Florida - so I didn't order it.
That's good, because it gave me time to compare prices and read the owner's manual, which is now available for download.
Every time I shop for a rig, I ask myself: What does it do that no currently-owned rig does?
The answer to that, in the FX-4C's case is: It's lighter and smaller than any 9-band, 10 watt rig that I have.
So far, so good. Sounds like a good POTA candidate.
But this statement on the designer's website gives me pause: Optimized for Digital. Hovering over that statement, new text reveals that the FX-4C provides "Simple digital operation with a single USB cable".
And herein lies the rub (and no, it's not because I am personally optimized for CW!).
If the radio is "optimized for digital", CAT control should be available on the same single USB cable. Just like it is with my now-obsolete mcHF (described here). But there is no CAT control with the FX-4C - band changes must be made on the rig, not via WSJT-X or whatever software you're using.
So to change bands when operating digital, you must change the band in the software and then again on the radio itself. This is not optimization.
Also, even in digital modes, the volume (AF Gain) of the FX-4C must be adjusted per band. Again, in the ancient mcHF, once the rig is placed into DIGital mode, the front panel AG gain is (correctly) out of the picture and has no effect.
These oversights (or are they features?) would be easy to overlook in a $250 radio. But, depending on who you buy from, the FX-4C is anywhere between $520 and $670.
If this counts for "optimized for digital" one can only imagine how it might perform on CW.
There's a part of me that would like to buy the rig just to put it on the bench and see how it looks in terms of harmonic output, receive sensitivity/selectivity and actual power out. But, at $520, I'm just going to have to keep wondering.